# List of United States Congresses

This is a list of the several United States Congresses, since their beginning in 1789, including their beginnings, endings, and the dates of their individual sessions. Each elected bicameral Congress (of the two chambers of the Senate and the House of Representatives) lasts for two years and begins on January 3 of odd-numbered years.
Before the Twentieth Amendment to the United States Constitution (ratified January 23, 1933), which moved and fixed new Congressional dates, on which an American Congress began and ended, designated from the original provisions of the Constitution of 1787, was previously either March 3 or March 4, (in tandem then with dates of presidential inaugurations every fourth year which were moved by the same constitutional amendment to January 20).

## List of previous Congresses

| Congress | Congress began | Session | Session dates | Congress ended | Senate control | House control |
| 1st Congress | March 4, 1789 | 1st session | March 4, 1789 – September 29, 1789 | March 3, 1791 | Pro-Administration | Pro-Administration |
| 1st Congress | March 4, 1789 | 2nd session | January 4, 1790 – August 12, 1790 | March 3, 1791 | Pro-Administration | Pro-Administration |
| 1st Congress | March 4, 1789 | 3rd session | December 6, 1790 – March 3, 1791 | March 3, 1791 | Pro-Administration | Pro-Administration |
| 2nd Congress | March 4, 1791 | Special session | March 4, 1791 – March 4, 1791 | March 3, 1793 | Pro-Administration | Pro-Administration |
| 2nd Congress | March 4, 1791 | 1st session | October 24, 1791 – May 8, 1792 | March 3, 1793 | Pro-Administration | Pro-Administration |
| 2nd Congress | March 4, 1791 | 2nd session | November 5, 1792 – March 2, 1793 | March 3, 1793 | Pro-Administration | Pro-Administration |
| 3rd Congress | March 4, 1793 | Special session | March 4, 1793 – March 4, 1793 | March 3, 1795 | Pro-Administration | Anti-Administration |
| 3rd Congress | March 4, 1793 | 1st session | December 2, 1793 – June 9, 1794 | March 3, 1795 | Pro-Administration | Anti-Administration |
| 3rd Congress | March 4, 1793 | 2nd session | November 3, 1794 – March 3, 1795 | March 3, 1795 | Pro-Administration | Anti-Administration |
| 4th Congress | March 4, 1795 | Special session | June 8, 1795 – June 26, 1795 | March 3, 1797 | Federalist | Democratic-Republican |
| 4th Congress | March 4, 1795 | 1st session | December 7, 1795 – June 1, 1796 | March 3, 1797 | Federalist | Democratic-Republican |
| 4th Congress | March 4, 1795 | 2nd session | December 5, 1796 – March 3, 1797 | March 3, 1797 | Federalist | Democratic-Republican |
| 5th Congress | March 4, 1797 | Special session | March 4, 1797 – March 4, 1797 | March 3, 1799 | Federalist | Federalist |
| 5th Congress | March 4, 1797 | 1st session | May 15, 1797 – July 10, 1797 | March 3, 1799 | Federalist | Federalist |
| 5th Congress | March 4, 1797 | 2nd session | November 13, 1797 – July 16, 1798 | March 3, 1799 | Federalist | Federalist |
| 5th Congress | March 4, 1797 | Special session | July 17, 1798 – July 19, 1798 | March 3, 1799 | Federalist | Federalist |
| 5th Congress | March 4, 1797 | 3rd session | December 3, 1798 – March 3, 1799 | March 3, 1799 | Federalist | Federalist |
| 6th Congress | March 4, 1799 | 1st session | December 2, 1799 – May 14, 1800 | March 3, 1801 | Federalist | Federalist |
| 6th Congress | March 4, 1799 | 2nd session | November 17, 1800 – March 3, 1801 | March 3, 1801 | Federalist | Federalist |
| 7th Congress | March 4, 1801 | Special session | March 4, 1801 – March 5, 1801 | March 3, 1803 | Democratic-Republican | Democratic-Republican |
| 7th Congress | March 4, 1801 | 1st session | December 7, 1801 – May 3, 1802 | March 3, 1803 | Democratic-Republican | Democratic-Republican |
| 7th Congress | March 4, 1801 | 2nd session | December 6, 1802 – March 3, 1803 | March 3, 1803 | Democratic-Republican | Democratic-Republican |
| 8th Congress | March 4, 1803 | 1st session | October 17, 1803 – March 27, 1804 | March 3, 1805 | Democratic-Republican | Democratic-Republican |
| 8th Congress | March 4, 1803 | 2nd session | November 5, 1804 – March 3, 1805 | March 3, 1805 | Democratic-Republican | Democratic-Republican |
| 9th Congress | March 4, 1805 | 1st session | December 2, 1805 – April 21, 1806 | March 3, 1807 | Democratic-Republican | Democratic-Republican |
| 9th Congress | March 4, 1805 | 2nd session | December 1, 1806 – March 3, 1807 | March 3, 1807 | Democratic-Republican | Democratic-Republican |
| 10th Congress | March 4, 1807 | 1st session | October 26, 1807 – April 25, 1808 | March 3, 1809 | Democratic-Republican | Democratic-Republican |
| 10th Congress | March 4, 1807 | 2nd session | November 7, 1808 – March 3, 1809 | March 3, 1809 | Democratic-Republican | Democratic-Republican |
| 11th Congress | March 4, 1809 | Special session | March 4, 1809 – March 7, 1809 | March 3, 1811 | Democratic-Republican | Democratic-Republican |
| 11th Congress | March 4, 1809 | 1st session | May 22, 1809 – June 28, 1809 | March 3, 1811 | Democratic-Republican | Democratic-Republican |
| 11th Congress | March 4, 1809 | 2nd session | November 27, 1809 – May 1, 1810 | March 3, 1811 | Democratic-Republican | Democratic-Republican |
| 11th Congress | March 4, 1809 | 3rd session | December 3, 1810 – March 3, 1811 | March 3, 1811 | Democratic-Republican | Democratic-Republican |
| 12th Congress | March 4, 1811 | 1st session | November 4, 1811 – July 6, 1812 | March 3, 1813 | Democratic-Republican | Democratic-Republican |
| 12th Congress | March 4, 1811 | 2nd session | November 2, 1812 – March 3, 1813 | March 3, 1813 | Democratic-Republican | Democratic-Republican |
| 13th Congress | March 4, 1813 | 1st session | May 24, 1813 – August 2, 1813 | March 3, 1815 | Democratic-Republican | Democratic-Republican |
| 13th Congress | March 4, 1813 | 2nd session | December 6, 1813 – April 18, 1814 | March 3, 1815 | Democratic-Republican | Democratic-Republican |
| 13th Congress | March 4, 1813 | 3rd session | September 19, 1814 – March 3, 1815 | March 3, 1815 | Democratic-Republican | Democratic-Republican |
| 14th Congress | March 4, 1815 | 1st session | December 4, 1815 – April 30, 1816 | March 3, 1817 | Democratic-Republican | Democratic-Republican |
| 14th Congress | March 4, 1815 | 2nd session | December 2, 1816 – March 3, 1817 | March 3, 1817 | Democratic-Republican | Democratic-Republican |
| 15th Congress | March 4, 1817 | Special session | March 4, 1817 – March 6, 1817 | March 3, 1819 | Democratic-Republican | Democratic-Republican |
| 15th Congress | March 4, 1817 | 1st session | December 1, 1817 – April 20, 1818 | March 3, 1819 | Democratic-Republican | Democratic-Republican |
| 15th Congress | March 4, 1817 | 2nd session | November 16, 1818 – March 3, 1819 | March 3, 1819 | Democratic-Republican | Democratic-Republican |
| 16th Congress | March 4, 1819 | 1st session | December 6, 1819 – May 15, 1820 | March 3, 1821 | Democratic-Republican | Democratic-Republican |
| 16th Congress | March 4, 1819 | 2nd session | November 13, 1820 – March 3, 1821 | March 3, 1821 | Democratic-Republican | Democratic-Republican |
| 17th Congress | March 4, 1821 | 1st session | December 3, 1821 – May 8, 1822 | March 3, 1823 | Democratic-Republican | Democratic-Republican |
| 17th Congress | March 4, 1821 | 2nd session | December 2, 1822 – March 3, 1823 | March 3, 1823 | Democratic-Republican | Democratic-Republican |
| 18th Congress | March 4, 1823 | 1st session | December 1, 1823 – May 27, 1824 | March 3, 1825 | Democratic-Republican | Democratic-Republican |
| 18th Congress | March 4, 1823 | 2nd session | December 6, 1824 – March 3, 1825 | March 3, 1825 | Democratic-Republican | Democratic-Republican |
| 19th Congress | March 4, 1825 | Special session | March 4, 1825 – March 9, 1825 | March 3, 1827 | Jacksonian | Anti-Jacksonian |
| 19th Congress | March 4, 1825 | 1st session | December 5, 1825 – May 22, 1826 | March 3, 1827 | Jacksonian | Anti-Jacksonian |
| 19th Congress | March 4, 1825 | 2nd session | December 4, 1826 – March 3, 1827 | March 3, 1827 | Jacksonian | Anti-Jacksonian |
| 20th Congress | March 4, 1827 | 1st session | December 3, 1827 – May 26, 1828 | March 3, 1829 | Jacksonian | Jacksonian |
| 20th Congress | March 4, 1827 | 2nd session | December 1, 1828 – March 3, 1829 | March 3, 1829 | Jacksonian | Jacksonian |
| 21st Congress | March 4, 1829 | Special session | March 4, 1829 – March 17, 1829 | March 3, 1831 | Jacksonian | Jacksonian |
| 21st Congress | March 4, 1829 | 1st session | December 7, 1829 – May 31, 1830 | March 3, 1831 | Jacksonian | Jacksonian |
| 21st Congress | March 4, 1829 | 2nd session | December 6, 1830 – March 3, 1831 | March 3, 1831 | Jacksonian | Jacksonian |
| 22nd Congress | March 4, 1831 | 1st session | December 5, 1831 – July 16, 1832 | March 3, 1833 | Jacksonian | Jacksonian |
| 22nd Congress | March 4, 1831 | 2nd session | December 3, 1832 – March 2, 1833 | March 3, 1833 | Jacksonian | Jacksonian |
| 23rd Congress | March 4, 1833 | 1st session | December 2, 1833 – June 30, 1834 | March 3, 1835 | National Republican | Jacksonian |
| 23rd Congress | March 4, 1833 | 2nd session | December 1, 1834 – March 3, 1835 | March 3, 1835 | National Republican | Jacksonian |
| 24th Congress | March 4, 1835 | 1st session | December 7, 1835 – July 4, 1836 | March 3, 1837 | National Republican | Jacksonian |
| 24th Congress | March 4, 1835 | 2nd session | December 5, 1836 – March 3, 1837 | March 3, 1837 | National Republican | Jacksonian |
| 25th Congress | March 4, 1837 | Special session | March 4, 1837 – March 10, 1837 | March 3, 1839 | Democratic | Democratic |
| 25th Congress | March 4, 1837 | 1st session | September 4, 1837 – October 16, 1837 | March 3, 1839 | Democratic | Democratic |
| 25th Congress | March 4, 1837 | 2nd session | December 4, 1837 – July 9, 1838 | March 3, 1839 | Democratic | Democratic |
| 25th Congress | March 4, 1837 | 3rd session | December 3, 1838 – March 3, 1839 | March 3, 1839 | Democratic | Democratic |
| 26th Congress | March 4, 1839 | 1st session | December 2, 1839 – July 21, 1840 | March 3, 1841 | Democratic | Democratic |
| 26th Congress | March 4, 1839 | 2nd session | December 7, 1840 – March 3, 1841 | March 3, 1841 | Democratic | Democratic |
| 27th Congress | March 4, 1841 | Special session | March 4, 1841 – March 15, 1841 | March 3, 1843 | Whig | Whig |
| 27th Congress | March 4, 1841 | 1st session | May 31, 1841 – September 13, 1841 | March 3, 1843 | Whig | Whig |
| 27th Congress | March 4, 1841 | 2nd session | December 6, 1841 – August 31, 1842 | March 3, 1843 | Whig | Whig |
| 27th Congress | March 4, 1841 | 3rd session | December 5, 1842 – March 3, 1843 | March 3, 1843 | Whig | Whig |
| 28th Congress | March 4, 1843 | 1st session | December 4, 1843 – June 17, 1844 | March 3, 1845 | Whig | Democratic |
| 28th Congress | March 4, 1843 | 2nd session | December 2, 1844 – March 3, 1845 | March 3, 1845 | Whig | Democratic |
| 29th Congress | March 4, 1845 | Special session | March 4, 1845 – March 20, 1845 | March 3, 1847 | Democratic | Democratic |
| 29th Congress | March 4, 1845 | 1st session | December 1, 1845 – August 10, 1846 | March 3, 1847 | Democratic | Democratic |
| 29th Congress | March 4, 1845 | 2nd session | December 7, 1846 – March 3, 1847 | March 3, 1847 | Democratic | Democratic |
| 30th Congress | March 4, 1847 | 1st session | December 6, 1847 – August 14, 1848 | March 3, 1849 | Democratic | Whig |
| 30th Congress | March 4, 1847 | 2nd session | December 4, 1848 – March 3, 1849 | March 3, 1849 | Democratic | Whig |
| 31st Congress | March 4, 1849 | Special session | March 5, 1849 – March 23, 1849 | March 3, 1851 | Democratic | Democratic |
| 31st Congress | March 4, 1849 | 1st session | December 3, 1849 – September 30, 1850 | March 3, 1851 | Democratic | Democratic |
| 31st Congress | March 4, 1849 | 2nd session | December 2, 1850 – March 3, 1851 | March 3, 1851 | Democratic | Democratic |
| 32nd Congress | March 4, 1851 | Special session | March 4, 1851 – March 13, 1851 | March 3, 1853 | Democratic | Democratic |
| 32nd Congress | March 4, 1851 | 1st session | December 1, 1851 – August 31, 1852 | March 3, 1853 | Democratic | Democratic |
| 32nd Congress | March 4, 1851 | 2nd session | December 6, 1852 – March 3, 1853 | March 3, 1853 | Democratic | Democratic |
| 33rd Congress | March 4, 1853 | Special session | March 4, 1853 – April 11, 1853 | March 3, 1855 | Democratic | Democratic |
| 33rd Congress | March 4, 1853 | 1st session | December 5, 1853 – August 7, 1854 | March 3, 1855 | Democratic | Democratic |
| 33rd Congress | March 4, 1853 | 2nd session | December 4, 1854 – March 3, 1855 | March 3, 1855 | Democratic | Democratic |
| 34th Congress | March 4, 1855 | 1st session | December 3, 1855 – August 18, 1856 | March 3, 1857 | Democratic | Opposition |
| 34th Congress | March 4, 1855 | 2nd session | August 21, 1856 – August 30, 1856 | March 3, 1857 | Democratic | Opposition |
| 34th Congress | March 4, 1855 | 3rd session | December 1, 1856 – March 3, 1857 | March 3, 1857 | Democratic | Opposition |
| 35th Congress | March 4, 1857 | Special session | March 4, 1857 – March 14, 1857 | March 3, 1859 | Democratic | Democratic |
| 35th Congress | March 4, 1857 | 1st session | December 7, 1857 – June 14, 1858 | March 3, 1859 | Democratic | Democratic |
| 35th Congress | March 4, 1857 | Special session | June 15, 1858 – June 16, 1858 | March 3, 1859 | Democratic | Democratic |
| 35th Congress | March 4, 1857 | 2nd session | December 6, 1858 – March 3, 1859 | March 3, 1859 | Democratic | Democratic |
| 36th Congress | March 4, 1859 | Special session | March 4, 1859 – March 10, 1859 | March 3, 1861 | Democratic | Republican |
| 36th Congress | March 4, 1859 | 1st session | December 5, 1859 – June 25, 1860 | March 3, 1861 | Democratic | Republican |
| 36th Congress | March 4, 1859 | Special session | June 26, 1860 – June 28, 1860 | March 3, 1861 | Democratic | Republican |
| 36th Congress | March 4, 1859 | 2nd session | December 3, 1860 – March 3, 1861 | March 3, 1861 | Democratic | Republican |
| 36th Congress | March 4, 1859 | 2nd session | December 3, 1860 – March 3, 1861 | March 3, 1861 | Republican | Republican |
| 37th Congress | March 4, 1861 | Special session | March 4, 1861 – March 28, 1861 | March 3, 1863 | Republican | Republican |
| 37th Congress | March 4, 1861 | 1st session | July 4, 1861 – August 6, 1861 | March 3, 1863 | Republican | Republican |
| 37th Congress | March 4, 1861 | 2nd session | December 2, 1861 – July 17, 1862 | March 3, 1863 | Republican | Republican |
| 37th Congress | March 4, 1861 | 3rd session | December 1, 1862 – March 3, 1863 | March 3, 1863 | Republican | Republican |
| 38th Congress | March 4, 1863 | Special session | March 4, 1863 – March 14, 1863 | March 3, 1865 | Republican | Republican |
| 38th Congress | March 4, 1863 | 1st session | December 7, 1863 – July 4, 1864 | March 3, 1865 | Republican | Republican |
| 38th Congress | March 4, 1863 | 2nd session | December 5, 1864 – March 3, 1865 | March 3, 1865 | Republican | Republican |
| 39th Congress | March 4, 1865 | Special session | March 4, 1865 – March 11, 1865 | March 3, 1867 | Republican | Republican |
| 39th Congress | March 4, 1865 | 1st session | December 4, 1865 – July 28, 1866 | March 3, 1867 | Republican | Republican |
| 39th Congress | March 4, 1865 | 2nd session | December 3, 1866 – March 3, 1867 | March 3, 1867 | Republican | Republican |
| 40th Congress | March 4, 1867 | 1st session | March 4, 1867 – December 1, 1867 | March 3, 1869 | Republican | Republican |
| 40th Congress | March 4, 1867 | Special session | April 1, 1867 – April 20, 1867 | March 3, 1869 | Republican | Republican |
| 40th Congress | March 4, 1867 | 2nd session | December 2, 1867 – November 10, 1868 | March 3, 1869 | Republican | Republican |
| 40th Congress | March 4, 1867 | 3rd session | December 7, 1868 – March 3, 1869 | March 3, 1869 | Republican | Republican |
| 41st Congress | March 4, 1869 | 1st session | March 4, 1869 – April 10, 1869 | March 3, 1871 | Republican | Republican |
| 41st Congress | March 4, 1869 | Special session | April 12, 1869 – April 22, 1869 | March 3, 1871 | Republican | Republican |
| 41st Congress | March 4, 1869 | 2nd session | December 6, 1869 – July 15, 1870 | March 3, 1871 | Republican | Republican |
| 41st Congress | March 4, 1869 | 3rd session | December 5, 1870 – March 3, 1871 | March 3, 1871 | Republican | Republican |
| 42nd Congress | March 4, 1871 | 1st session | March 4, 1871 – April 20, 1871 | March 3, 1873 | Republican | Republican |
| 42nd Congress | March 4, 1871 | Special session | May 10, 1871 – May 27, 1871 | March 3, 1873 | Republican | Republican |
| 42nd Congress | March 4, 1871 | 2nd session | December 4, 1871 – June 10, 1872 | March 3, 1873 | Republican | Republican |
| 42nd Congress | March 4, 1871 | 3rd session | December 2, 1872 – March 3, 1873 | March 3, 1873 | Republican | Republican |
| 43rd Congress | March 4, 1873 | Special session | March 4, 1873 – March 26, 1873 | March 3, 1875 | Republican | Republican |
| 43rd Congress | March 4, 1873 | 1st session | December 1, 1873 – June 23, 1874 | March 3, 1875 | Republican | Republican |
| 43rd Congress | March 4, 1873 | 2nd session | December 7, 1874 – March 3, 1875 | March 3, 1875 | Republican | Republican |
| 44th Congress | March 4, 1875 | Special session | March 5, 1875 – March 24, 1875 | March 3, 1877 | Republican | Democratic |
| 44th Congress | March 4, 1875 | 1st session | December 6, 1875 – August 15, 1876 | March 3, 1877 | Republican | Democratic |
| 44th Congress | March 4, 1875 | 2nd session | December 4, 1876 – March 3, 1877 | March 3, 1877 | Republican | Democratic |
| 45th Congress | March 4, 1877 | Special session | March 5, 1877 – March 17, 1877 | March 3, 1879 | Republican | Democratic |
| 45th Congress | March 4, 1877 | 1st session | October 15, 1877 – December 3, 1877 | March 3, 1879 | Republican | Democratic |
| 45th Congress | March 4, 1877 | 2nd session | December 3, 1877 – June 20, 1878 | March 3, 1879 | Republican | Democratic |
| 45th Congress | March 4, 1877 | 3rd session | December 2, 1878 – March 3, 1879 | March 3, 1879 | Republican | Democratic |
| 46th Congress | March 4, 1879 | 1st session | March 18, 1879 – July 1, 1879 | March 3, 1881 | Democratic | Democratic |
| 46th Congress | March 4, 1879 | 2nd session | December 1, 1879 – June 16, 1880 | March 3, 1881 | Democratic | Democratic |
| 46th Congress | March 4, 1879 | 3rd session | December 6, 1880 – March 3, 1881 | March 3, 1881 | Democratic | Democratic |
| 47th Congress | March 4, 1881 | Special session | March 4, 1881 – May 20, 1881 | March 3, 1883 | Republican | Republican |
| 47th Congress | March 4, 1881 | Special session | October 10, 1881 – October 29, 1881 | March 3, 1883 | Split | Republican |
| 47th Congress | March 4, 1881 | 1st session | December 5, 1881 – August 8, 1882 | March 3, 1883 | Split | Republican |
| 47th Congress | March 4, 1881 | 2nd session | December 4, 1882 – March 3, 1883 | March 3, 1883 | Split | Republican |
| 48th Congress | March 4, 1883 | 1st session | December 3, 1883 – July 7, 1884 | March 3, 1885 | Republican | Democratic |
| 48th Congress | March 4, 1883 | 2nd session | December 1, 1884 – March 3, 1885 | March 3, 1885 | Republican | Democratic |
| 49th Congress | March 4, 1885 | Special session | March 4, 1885 – April 2, 1885 | March 3, 1887 | Republican | Democratic |
| 49th Congress | March 4, 1885 | 1st session | December 7, 1885 – August 5, 1886 | March 3, 1887 | Republican | Democratic |
| 49th Congress | March 4, 1885 | 2nd session | December 6, 1886 – March 3, 1887 | March 3, 1887 | Republican | Democratic |
| 50th Congress | March 4, 1887 | 1st session | December 5, 1887 – October 20, 1888 | March 3, 1889 | Republican | Democratic |
| 50th Congress | March 4, 1887 | 2nd session | December 3, 1888 – March 3, 1889 | March 3, 1889 | Republican | Democratic |
| 51st Congress | March 4, 1889 | Special session | March 4, 1889 – April 2, 1889 | March 3, 1891 | Republican | Republican |
| 51st Congress | March 4, 1889 | 1st session | December 2, 1889 – October 1, 1890 | March 3, 1891 | Republican | Republican |
| 51st Congress | March 4, 1889 | 2nd session | December 1, 1890 – March 3, 1891 | March 3, 1891 | Republican | Republican |
| 52nd Congress | March 4, 1891 | 1st session | December 7, 1891 – August 5, 1892 | March 3, 1893 | Republican | Democratic |
| 52nd Congress | March 4, 1891 | 2nd session | December 5, 1892 – March 3, 1893 | March 3, 1893 | Republican | Democratic |
| 53rd Congress | March 4, 1893 | Special session | March 4, 1893 – April 15, 1893 | March 3, 1895 | Democratic | Democratic |
| 53rd Congress | March 4, 1893 | 1st session | August 7, 1893 – November 3, 1893 | March 3, 1895 | Democratic | Democratic |
| 53rd Congress | March 4, 1893 | 2nd session | December 4, 1893 – August 28, 1894 | March 3, 1895 | Democratic | Democratic |
| 53rd Congress | March 4, 1893 | 3rd session | December 3, 1894 – March 3, 1895 | March 3, 1895 | Democratic | Democratic |
| 54th Congress | March 4, 1895 | 1st session | December 2, 1895 – June 11, 1896 | March 3, 1897 | Republican | Republican |
| 54th Congress | March 4, 1895 | 2nd session | December 7, 1896 – March 3, 1897 | March 3, 1897 | Republican | Republican |
| 55th Congress | March 4, 1897 | Special session | March 4, 1897 – March 10, 1897 | March 3, 1899 | Republican | Republican |
| 55th Congress | March 4, 1897 | 1st session | March 15, 1897 – July 24, 1897 | March 3, 1899 | Republican | Republican |
| 55th Congress | March 4, 1897 | 2nd session | December 6, 1897 – July 8, 1898 | March 3, 1899 | Republican | Republican |
| 55th Congress | March 4, 1897 | 3rd session | December 5, 1898 – March 3, 1899 | March 3, 1899 | Republican | Republican |
| 56th Congress | March 4, 1899 | 1st session | December 4, 1899 – June 7, 1900 | March 3, 1901 | Republican | Republican |
| 56th Congress | March 4, 1899 | 2nd session | December 3, 1900 – March 3, 1901 | March 3, 1901 | Republican | Republican |
| 57th Congress | March 4, 1901 | Special session | March 4, 1901 – March 9, 1901 | March 3, 1903 | Republican | Republican |
| 57th Congress | March 4, 1901 | 1st session | December 2, 1901 – July 1, 1902 | March 3, 1903 | Republican | Republican |
| 57th Congress | March 4, 1901 | 2nd session | December 1, 1902 – March 3, 1903 | March 3, 1903 | Republican | Republican |
| 58th Congress | March 4, 1903 | Special session | March 5, 1903 – March 19, 1903 | March 3, 1905 | Republican | Republican |
| 58th Congress | March 4, 1903 | 1st session | November 9, 1903 – December 7, 1903 | March 3, 1905 | Republican | Republican |
| 58th Congress | March 4, 1903 | 2nd session | December 7, 1903 – April 28, 1904 | March 3, 1905 | Republican | Republican |
| 58th Congress | March 4, 1903 | 3rd session | December 5, 1904 – March 3, 1905 | March 3, 1905 | Republican | Republican |
| 59th Congress | March 4, 1905 | Special session | March 4, 1905 – March 18, 1905 | March 3, 1907 | Republican | Republican |
| 59th Congress | March 4, 1905 | 1st session | December 4, 1905 – June 30, 1906 | March 3, 1907 | Republican | Republican |
| 59th Congress | March 4, 1905 | 2nd session | December 3, 1906 – March 3, 1907 | March 3, 1907 | Republican | Republican |
| 60th Congress | March 4, 1907 | 1st session | December 2, 1907 – May 30, 1908 | March 3, 1909 | Republican | Republican |
| 60th Congress | March 4, 1907 | 2nd session | December 7, 1908 – March 3, 1909 | March 3, 1909 | Republican | Republican |
| 61st Congress | March 4, 1909 | Special session | March 4, 1909 – March 6, 1909 | March 3, 1911 | Republican | Republican |
| 61st Congress | March 4, 1909 | 1st session | March 15, 1909 – August 5, 1909 | March 3, 1911 | Republican | Republican |
| 61st Congress | March 4, 1909 | 2nd session | December 6, 1909 – June 25, 1910 | March 3, 1911 | Republican | Republican |
| 61st Congress | March 4, 1909 | 3rd session | December 5, 1910 – March 3, 1911 | March 3, 1911 | Republican | Republican |
| 62nd Congress | March 4, 1911 | 1st session | April 4, 1911 – August 22, 1911 | March 3, 1913 | Republican | Democratic |
| 62nd Congress | March 4, 1911 | 2nd session | December 4, 1911 – August 26, 1912 | March 3, 1913 | Republican | Democratic |
| 62nd Congress | March 4, 1911 | 3rd session | December 2, 1912 – March 3, 1913 | March 3, 1913 | Republican | Democratic |
| 63rd Congress | March 4, 1913 | Special session | March 4, 1913 – March 17, 1913 | March 3, 1915 | Democratic | Democratic |
| 63rd Congress | March 4, 1913 | 1st session | April 7, 1913 – December 1, 1913 | March 3, 1915 | Democratic | Democratic |
| 63rd Congress | March 4, 1913 | 2nd session | December 1, 1913 – October 24, 1914 | March 3, 1915 | Democratic | Democratic |
| 63rd Congress | March 4, 1913 | 3rd session | December 7, 1914 – March 3, 1915 | March 3, 1915 | Democratic | Democratic |
| 64th Congress | March 4, 1915 | 1st session | December 6, 1915 – September 8, 1916 | March 3, 1917 | Democratic | Democratic |
| 64th Congress | March 4, 1915 | 2nd session | December 4, 1916 – March 3, 1917 | March 3, 1917 | Democratic | Democratic |
| 65th Congress | March 4, 1917 | Special session | March 5, 1917 – March 16, 1917 | March 3, 1919 | Democratic | Coalition(Dem–Pro–Soc) |
| 65th Congress | March 4, 1917 | 1st session | April 2, 1917 – October 6, 1917 | March 3, 1919 | Democratic | Coalition(Dem–Pro–Soc) |
| 65th Congress | March 4, 1917 | 2nd session | December 3, 1917 – November 21, 1918 | March 3, 1919 | Democratic | Coalition(Dem–Pro–Soc) |
| 65th Congress | March 4, 1917 | 3rd session | December 2, 1918 – March 3, 1919 | March 3, 1919 | Democratic | Coalition(Dem–Pro–Soc) |
| 66th Congress | March 4, 1919 | 1st session | May 19, 1919 – November 19, 1919 | March 3, 1921 | Republican | Republican |
| 66th Congress | March 4, 1919 | 2nd session | December 1, 1919 – June 5, 1920 | March 3, 1921 | Republican | Republican |
| 66th Congress | March 4, 1919 | 3rd session | December 6, 1920 – March 3, 1921 | March 3, 1921 | Republican | Republican |
| 67th Congress | March 4, 1921 | Special session | March 4, 1921 – March 15, 1921 | March 3, 1923 | Republican | Republican |
| 67th Congress | March 4, 1921 | 1st session | April 11, 1921 – November 23, 1921 | March 3, 1923 | Republican | Republican |
| 67th Congress | March 4, 1921 | 2nd session | December 5, 1921 – September 22, 1922 | March 3, 1923 | Republican | Republican |
| 67th Congress | March 4, 1921 | 3rd session | November 20, 1922 – December 4, 1922 | March 3, 1923 | Republican | Republican |
| 67th Congress | March 4, 1921 | 4th session | December 4, 1922 – March 3, 1923 | March 3, 1923 | Republican | Republican |
| 68th Congress | March 4, 1923 | 1st session | December 3, 1923 – June 7, 1924 | March 3, 1925 | Republican | Republican |
| 68th Congress | March 4, 1923 | 2nd session | December 1, 1924 – March 3, 1925 | March 3, 1925 | Republican | Republican |
| 69th Congress | March 4, 1925 | Special session | March 4, 1925 – March 18, 1925 | March 3, 1927 | Republican | Republican |
| 69th Congress | March 4, 1925 | 1st session | December 7, 1925 – July 3, 1926 | March 3, 1927 | Republican | Republican |
| 69th Congress | March 4, 1925 | 2nd session | December 6, 1926 – March 4, 1927 | March 3, 1927 | Republican | Republican |
| 70th Congress | March 4, 1927 | 1st session | December 5, 1927 – May 29, 1928 | March 3, 1929 | Republican | Republican |
| 70th Congress | March 4, 1927 | 2nd session | December 3, 1928 – March 3, 1929 | March 3, 1929 | Republican | Republican |
| 71st Congress | March 4, 1929 | Special session | March 4, 1929 – March 5, 1929 | March 3, 1931 | Republican | Republican |
| 71st Congress | March 4, 1929 | 1st session | April 15, 1929 – November 22, 1929 | March 3, 1931 | Republican | Republican |
| 71st Congress | March 4, 1929 | 2nd session | December 2, 1929 – July 3, 1930 | March 3, 1931 | Republican | Republican |
| 71st Congress | March 4, 1929 | Special session | July 7, 1930 – July 21, 1930 | March 3, 1931 | Republican | Republican |
| 71st Congress | March 4, 1929 | 3rd session | December 1, 1930 – March 3, 1931 | March 3, 1931 | Republican | Republican |
| 72nd Congress | March 4, 1931 | 1st session | December 7, 1931 – July 16, 1932 | March 3, 1933 | Republican | Democratic |
| 72nd Congress | March 4, 1931 | 2nd session | December 5, 1932 – March 3, 1933 | March 3, 1933 | Republican | Democratic |
| 73rd Congress | March 4, 1933 | Special session | March 4, 1933 – March 6, 1933 | January 3, 1935 | Democratic | Democratic |
| 73rd Congress | March 4, 1933 | 1st session | March 9, 1933 – June 15, 1933 | January 3, 1935 | Democratic | Democratic |
| 73rd Congress | March 4, 1933 | 2nd session | January 3, 1934 – June 18, 1934 | January 3, 1935 | Democratic | Democratic |
| 74th Congress | January 3, 1935 | 1st session | January 3, 1935 – August 26, 1935 | January 3, 1937 | Democratic | Democratic |
| 74th Congress | January 3, 1935 | 2nd session | January 3, 1936 – June 20, 1936 | January 3, 1937 | Democratic | Democratic |
| 75th Congress | January 3, 1937 | 1st session | January 5, 1937 – August 21, 1937 | January 3, 1939 | Democratic | Democratic |
| 75th Congress | January 3, 1937 | 2nd session | November 15, 1937 – December 21, 1937 | January 3, 1939 | Democratic | Democratic |
| 75th Congress | January 3, 1937 | 3rd session | January 3, 1938 – June 16, 1938 | January 3, 1939 | Democratic | Democratic |
| 76th Congress | January 3, 1939 | 1st session | January 3, 1939 – August 5, 1939 | January 3, 1941 | Democratic | Democratic |
| 76th Congress | January 3, 1939 | 2nd session | September 21, 1939 – November 3, 1939 | January 3, 1941 | Democratic | Democratic |
| 76th Congress | January 3, 1939 | 3rd session | January 3, 1940 – January 3, 1941 | January 3, 1941 | Democratic | Democratic |
| 77th Congress | January 3, 1941 | 1st session | January 3, 1941 – January 2, 1942 | January 3, 1943 | Democratic | Democratic |
| 77th Congress | January 3, 1941 | 2nd session | January 5, 1942 – December 16, 1942 | January 3, 1943 | Democratic | Democratic |
| 78th Congress | January 3, 1943 | 1st session | January 6, 1943 – December 21, 1943 | January 3, 1945 | Democratic | Democratic |
| 78th Congress | January 3, 1943 | 2nd session | January 10, 1944 – December 19, 1944 | January 3, 1945 | Democratic | Democratic |
| 79th Congress | January 3, 1945 | 1st session | January 3, 1945 – December 21, 1945 | January 3, 1947 | Democratic | Democratic |
| 79th Congress | January 3, 1945 | 2nd session | January 14, 1946 – August 2, 1946 | January 3, 1947 | Democratic | Democratic |
| 80th Congress | January 3, 1947 | 1st session | January 3, 1947 – December 19, 1947 | January 3, 1949 | Republican | Republican |
| 80th Congress | January 3, 1947 | 2nd session | January 6, 1948 – December 31, 1948 | January 3, 1949 | Republican | Republican |
| 81st Congress | January 3, 1949 | 1st session | January 3, 1949 – October 19, 1949 | January 3, 1951 | Democratic | Democratic |
| 81st Congress | January 3, 1949 | 2nd session | January 3, 1950 – January 2, 1951 | January 3, 1951 | Democratic | Democratic |
| 82nd Congress | January 3, 1951 | 1st session | January 3, 1951 – October 20, 1951 | January 3, 1953 | Democratic | Democratic |
| 82nd Congress | January 3, 1951 | 2nd session | January 8, 1952 – July 7, 1952 | January 3, 1953 | Democratic | Democratic |
| 83rd Congress | January 3, 1953 | 1st session | January 3, 1953 – August 3, 1953 | January 3, 1955 | Republican | Republican |
| 83rd Congress | January 3, 1953 | 2nd session | January 6, 1954 – December 2, 1954 | January 3, 1955 | Republican | Republican |
| 84th Congress | January 3, 1955 | 1st session | January 5, 1955 – August 2, 1955 | January 3, 1957 | Democratic | Democratic |
| 84th Congress | January 3, 1955 | 2nd session | January 3, 1956 – July 27, 1956 | January 3, 1957 | Democratic | Democratic |
| 85th Congress | January 3, 1957 | 1st session | January 3, 1957 – August 30, 1957 | January 3, 1959 | Democratic | Democratic |
| 85th Congress | January 3, 1957 | 2nd session | January 7, 1958 – August 24, 1958 | January 3, 1959 | Democratic | Democratic |
| 86th Congress | January 3, 1959 | 1st session | January 7, 1959 – September 15, 1959 | January 3, 1961 | Democratic | Democratic |
| 86th Congress | January 3, 1959 | 2nd session | January 6, 1960 – September 1, 1960 | January 3, 1961 | Democratic | Democratic |
| 87th Congress | January 3, 1961 | 1st session | January 3, 1961 – September 27, 1961 | January 3, 1963 | Democratic | Democratic |
| 87th Congress | January 3, 1961 | 2nd session | January 10, 1962 – October 13, 1962 | January 3, 1963 | Democratic | Democratic |
| 88th Congress | January 3, 1963 | 1st session | January 9, 1963 – December 30, 1963 | January 3, 1965 | Democratic | Democratic |
| 88th Congress | January 3, 1963 | 2nd session | January 7, 1964 – October 3, 1964 | January 3, 1965 | Democratic | Democratic |
| 89th Congress | January 3, 1965 | 1st session | January 4, 1965 – October 23, 1965 | January 3, 1967 | Democratic | Democratic |
| 89th Congress | January 3, 1965 | 2nd session | January 10, 1966 – October 22, 1966 | January 3, 1967 | Democratic | Democratic |
| 90th Congress | January 3, 1967 | 1st session | January 10, 1967 – December 15, 1967 | January 3, 1969 | Democratic | Democratic |
| 90th Congress | January 3, 1967 | 2nd session | January 15, 1968 – October 14, 1968 | January 3, 1969 | Democratic | Democratic |
| 91st Congress | January 3, 1969 | 1st session | January 3, 1969 – December 23, 1969 | January 3, 1971 | Democratic | Democratic |
| 91st Congress | January 3, 1969 | 2nd session | January 19, 1970 – January 2, 1971 | January 3, 1971 | Democratic | Democratic |
| 92nd Congress | January 3, 1971 | 1st session | January 21, 1971 – December 17, 1971 | January 3, 1973 | Democratic | Democratic |
| 92nd Congress | January 3, 1971 | 2nd session | January 18, 1972 – October 18, 1972 | January 3, 1973 | Democratic | Democratic |
| 93rd Congress | January 3, 1973 | 1st session | January 3, 1973 – December 22, 1973 | January 3, 1975 | Democratic | Democratic |
| 93rd Congress | January 3, 1973 | 2nd session | January 21, 1974 – December 20, 1974 | January 3, 1975 | Democratic | Democratic |
| 94th Congress | January 3, 1975 | 1st session | January 14, 1975 – December 19, 1975 | January 3, 1977 | Democratic | Democratic |
| 94th Congress | January 3, 1975 | 2nd session | January 19, 1976 – October 1, 1976 | January 3, 1977 | Democratic | Democratic |
| 95th Congress | January 3, 1977 | 1st session | January 4, 1977 – December 15, 1977 | January 3, 1979 | Democratic | Democratic |
| 95th Congress | January 3, 1977 | 2nd session | January 19, 1978 – October 15, 1978 | January 3, 1979 | Democratic | Democratic |
| 96th Congress | January 3, 1979 | 1st session | January 15, 1979 – January 3, 1980 | January 3, 1981 | Democratic | Democratic |
| 96th Congress | January 3, 1979 | 2nd session | January 3, 1980 – December 16, 1980 | January 3, 1981 | Democratic | Democratic |
| 97th Congress | January 3, 1981 | 1st session | January 5, 1981 – December 16, 1981 | January 3, 1983 | Republican | Democratic |
| 97th Congress | January 3, 1981 | 2nd session | January 25, 1982 – December 23, 1982 | January 3, 1983 | Republican | Democratic |
| 98th Congress | January 3, 1983 | 1st session | January 3, 1983 – November 18, 1983 | January 3, 1985 | Republican | Democratic |
| 98th Congress | January 3, 1983 | 2nd session | January 23, 1984 – October 12, 1984 | January 3, 1985 | Republican | Democratic |
| 99th Congress | January 3, 1985 | 1st session | January 3, 1985 – December 20, 1985 | January 3, 1987 | Republican | Democratic |
| 99th Congress | January 3, 1985 | 2nd session | January 21, 1986 – October 18, 1986 | January 3, 1987 | Republican | Democratic |
| 100th Congress | January 3, 1987 | 1st session | January 6, 1987 – December 22, 1987 | January 3, 1989 | Democratic | Democratic |
| 100th Congress | January 3, 1987 | 2nd session | January 25, 1988 – October 22, 1988 | January 3, 1989 | Democratic | Democratic |
| 101st Congress | January 3, 1989 | 1st session | January 3, 1989 – November 22, 1989 | January 3, 1991 | Democratic | Democratic |
| 101st Congress | January 3, 1989 | 2nd session | January 23, 1990 – October 28, 1990 | January 3, 1991 | Democratic | Democratic |
| 102nd Congress | January 3, 1991 | 1st session | January 3, 1991 – January 3, 1992 | January 3, 1993 | Democratic | Democratic |
| 102nd Congress | January 3, 1991 | 2nd session | January 3, 1992 – October 9, 1992 | January 3, 1993 | Democratic | Democratic |
| 103rd Congress | January 3, 1993 | 1st session | January 5, 1993 – November 26, 1993 | January 3, 1995 | Democratic | Democratic |
| 103rd Congress | January 3, 1993 | 2nd session | January 25, 1994 – December 1, 1994 | January 3, 1995 | Democratic | Democratic |
| 104th Congress | January 3, 1995 | 1st session | January 4, 1995 – January 3, 1996 | January 3, 1997 | Republican | Republican |
| 104th Congress | January 3, 1995 | 2nd session | January 3, 1996 – October 4, 1996 | January 3, 1997 | Republican | Republican |
| 105th Congress | January 3, 1997 | 1st session | January 7, 1997 – November 13, 1997 | January 3, 1999 | Republican | Republican |
| 105th Congress | January 3, 1997 | 2nd session | January 27, 1998 – December 19, 1998 | January 3, 1999 | Republican | Republican |
| 106th Congress | January 3, 1999 | 1st session | January 6, 1999 – November 22, 1999 | January 3, 2001 | Republican | Republican |
| 106th Congress | January 3, 1999 | 2nd session | January 24, 2000 – December 15, 2000 | January 3, 2001 | Republican | Republican |
| 107th Congress | January 3, 2001 | 1st session | January 3, 2001 – December 20, 2001 | January 3, 2003 | Democratic | Republican |
| 107th Congress | January 3, 2001 | 1st session | January 3, 2001 – December 20, 2001 | January 3, 2003 | Republican | Republican |
| 107th Congress | January 3, 2001 | 1st session | January 3, 2001 – December 20, 2001 | January 3, 2003 | Democratic | Republican |
| 107th Congress | January 3, 2001 | 2nd session | January 23, 2002 – November 22, 2002 | January 3, 2003 | Democratic | Republican |
| 108th Congress | January 3, 2003 | 1st session | January 7, 2003 – December 9, 2003 | January 3, 2005 | Republican | Republican |
| 108th Congress | January 3, 2003 | 2nd session | January 20, 2004 – December 8, 2004 | January 3, 2005 | Republican | Republican |
| 109th Congress | January 3, 2005 | 1st session | January 4, 2005 – December 22, 2005 | January 3, 2007 | Republican | Republican |
| 109th Congress | January 3, 2005 | 2nd session | January 3, 2006 – December 9, 2006 | January 3, 2007 | Republican | Republican |
| 110th Congress | January 3, 2007 | 1st session | January 4, 2007 – December 19, 2007 | January 3, 2009 | Democratic | Democratic |
| 110th Congress | January 3, 2007 | 2nd session | January 3, 2008 – January 3, 2009 | January 3, 2009 | Democratic | Democratic |
| 111th Congress | January 3, 2009 | 1st session | January 6, 2009 – December 24, 2009 | January 3, 2011 | Democratic | Democratic |
| 111th Congress | January 3, 2009 | 2nd session | January 5, 2010 – December 22, 2010 | January 3, 2011 | Democratic | Democratic |
| 112th Congress | January 3, 2011 | 1st session | January 5, 2011 – January 3, 2012 | January 3, 2013 | Democratic | Republican |
| 112th Congress | January 3, 2011 | 2nd session | January 3, 2012 – January 3, 2013 | January 3, 2013 | Democratic | Republican |
| 113th Congress | January 3, 2013 | 1st session | January 3, 2013 – December 26, 2013 | January 3, 2015 | Democratic | Republican |
| 113th Congress | January 3, 2013 | 2nd session | January 3, 2014 – December 16, 2014 | January 3, 2015 | Democratic | Republican |
| 114th Congress | January 3, 2015 | 1st session | January 6, 2015 – December 18, 2015 | January 3, 2017 | Republican | Republican |
| 114th Congress | January 3, 2015 | 2nd session | January 4, 2016 – January 3, 2017 | January 3, 2017 | Republican | Republican |
| 115th Congress | January 3, 2017 | 1st session | January 3, 2017 – January 3, 2018 | January 3, 2019 | Republican | Republican |
| 115th Congress | January 3, 2017 | 2nd session | January 3, 2018 – January 3, 2019 | January 3, 2019 | Republican | Republican |
| 116th Congress | January 3, 2019 | 1st session | January 3, 2019 – January 3, 2020 | January 3, 2021 | Republican | Democratic |
| 116th Congress | January 3, 2019 | 2nd session | January 3, 2020 – January 3, 2021 | January 3, 2021 | Republican | Democratic |
| 117th Congress | January 3, 2021 | 1st session | January 3, 2021 – January 3, 2022 | January 3, 2023 | Republican | Democratic |
| 117th Congress | January 3, 2021 | 1st session | January 3, 2021 – January 3, 2022 | January 3, 2023 | Democratic | Democratic |
| 117th Congress | January 3, 2021 | 2nd session | January 3, 2022 – January 3, 2023 | January 3, 2023 | Democratic | Democratic |
| 118th Congress | January 3, 2023 | 1st session | January 3, 2023 – January 3, 2024 | January 3, 2025 | Democratic | Republican |
| 118th Congress | January 3, 2023 | 2nd session | January 3, 2024 – January 3, 2025 | January 3, 2025 | Democratic | Republican |

## Current Congress

| Congress | Congress began | Session | Session dates | Congress ends | Senate control | House control |
| 119th Congress | January 3, 2025 | 1st session | January 3, 2025 – present | January 3, 2027 | Republican | Republican |
| 119th Congress | January 3, 2025 | 2nd session | TBD | January 3, 2027 | Republican | Republican |

## Next Congresses

| Congress | Congress begins | Session | Session dates | Congress ends | Senate control | House control |
| 120th Congress | January 3, 2027 | 1st session | January 3, 2028 | January 3, 2029 | TBD | TBD |
| 120th Congress | January 3, 2027 | 2nd session | TBD | January 3, 2029 | TBD | TBD |
| 121st Congress | January 3, 2029 | 1st session | TBD | January 3, 2031 | TBD | TBD |
| 121st Congress | January 3, 2029 | 2nd session | TBD | January 3, 2031 | TBD | TBD |
| 122nd Congress | January 3, 2031 | 1st session | TBD | January 3, 2033 | TBD | TBD |
| 122nd Congress | January 3, 2031 | 2nd session | TBD | January 3, 2033 | TBD | TBD |
| 123rd Congress | January 3, 2033 | 1st session | TBD | January 3, 2035 | TBD | TBD |
| 123rd Congress | January 3, 2033 | 2nd session | TBD | January 3, 2035 | TBD | TBD |
| 124th Congress | January 3, 2035 | 1st session | TBD | January 3, 2037 | TBD | TBD |
| 124th Congress | January 3, 2035 | 2nd session | TBD | January 3, 2037 | TBD | TBD |
| 125th Congress | January 3, 2037 | 1st session | TBD | January 3, 2039 | TBD | TBD |
| 125th Congress | January 3, 2037 | 2nd session | TBD | January 3, 2039 | TBD | TBD |