# Demographics of Cologne

Cologne (German: Köln) is Germany's fourth-largest city and the largest city in the Rhineland. As of 31 December 2011, there were officially 1,017,155 residents. The city is center of the Cologne/Bonn Region with around 3 million inhabitants (including the neighboring cities of Bonn, Hürth, Leverkusen, and Bergisch Gladbach).

## Population by district

| District | Population | Population | Population | Population | Population | Population |
| | Population (1990) | Population (1995) | Population (2000) | Population (2005) | Population (2009) | Population (2025)$^{estimated}$ |
| 1. Innenstadt | 137.283 | 138.637 | 133.454 | 129.496 | 126.301 | 128.400 |
| 2. Rodenkirchen | 91.284 | 94.582 | 97.790 | 100.490 | 100.827 | 110.500 |
| 3. Lindenthal | 134.823 | 135.276 | 139.026 | 139.803 | 137.870 | 145.300 |
| 4. Ehrenfeld | 95.243 | 95.552 | 97.396 | 102.939 | 103.708 | 105.900 |
| 5. Nippes | 111.133 | 109.481 | 108.206 | 109.235 | 111.141 | 111.000 |
| 6. Chorweiler | 74.481 | 79.073 | 83.215 | 82.865 | 80.459 | 77.700 |
| 7. Porz | 100.695 | 105.433 | 107.447 | 106.647 | 106.533 | 107.000 |
| 8. Kalk | 108.769 | 108.185 | 106.377 | 107.194 | 109.045 | 105.800 |
| 9. Mülheim | 142.889 | 141.877 | 144.321 | 144.432 | 144.419 | 140.300 |
| Cologne | 998.590 | 1.008.848 | 1.017.721 | 1.023.101 | 1.020.303 | 1.031.800 |
| source: Die Kölner Stadtteile in Zahlen 2010 (in German) |||||||

## Population by migration background

| District | Population (2009) | German citizens | German citizens | German citizens | Foreign citizens | Foreign citizens | Foreign citizens | Foreign citizens | Foreign citizens | Foreign citizens | Foreign citizens | Foreign citizens |
| | | (total) | German citizens w/o migration backgr. | German citizens w/ migration backgr. | (total) | from inside the EU$^1$ | from Turkey | from elsewhere in Europe | from Africa$^2$ | from the Americas | from Asia$^3$ | from elsewhere |
| 1. Innenstadt | 126.301 | 104.945 | 92.946 | 11.999 | 21.356 | 9.524 | 4.502 | 2.532 | 924 | 1.287 | 2.460 | 127 |
| 2. Rodenkirchen | 100.827 | 86.823 | 74.938 | 11.885 | 14.004 | 5.717 | 3.298 | 1.850 | 827 | 505 | 1.747 | 60 |
| 3. Lindenthal | 137.870 | 124.943 | 111.586 | 13.357 | 12.927 | 6.034 | 1.600 | 1.646 | 627 | 762 | 2.146 | 112 |
| 4. Ehrenfeld | 103.708 | 83.614 | 69.749 | 13.865 | 20.094 | 6.824 | 7.960 | 2.394 | 970 | 459 | 1.367 | 120 |
| 5. Nippes | 111.141 | 91.048 | 77.230 | 13.818 | 20.093 | 5.876 | 9.584 | 2.131 | 857 | 409 | 1.146 | 90 |
| 6. Chorweiler | 80.459 | 65.770 | 46.806 | 18.964 | 14.689 | 3.216 | 6.989 | 2.589 | 456 | 96 | 1.252 | 91 |
| 7. Porz | 106.533 | 91.368 | 71.409 | 19.959 | 15.165 | 4.802 | 4.412 | 3.178 | 653 | 196 | 1.850 | 75 |
| 8. Kalk | 109.045 | 82.012 | 61.387 | 20.625 | 27.033 | 6.867 | 10.865 | 4.287 | 1.772 | 280 | 1.772 | 108 |
| 9. Mülheim | 144.419 | 116.935 | 93.804 | 23.131 | 27.484 | 6.642 | 12.480 | 3.885 | 1.750 | 443 | 2.202 | 82 |
| Cologne | 1.020.303 | 847.458 | 699.855 | 147.603 | 172.845 | 55.502 | 61.690 | 24.492 | 8.835 | 4.437 | 17.024 | 865 |
$^1$ largest groups from Italy, Poland and Greece
$^2$ largest groups from Morocco and Algeria $^3$ largest group from Iran

## Population by age

| District | Population (2004) | Population (2004) | Population (2004) | Population (2004) | Population (2004) |
| | Population (total) | Population age < 18 | Population age 18 < 35 | Population age 35 < 65 | Population age > 65 |
| 1. Innenstadt | 129.047 | 12.091 | | | |
| 2. Rodenkirchen | 100.325 | 15.828 | | | |
| 3. Lindenthal | 139.233 | 17.700 | | | |
| 4. Ehrenfeld | 102.264 | 16.780 | | | |
| 5. Nippes | 109.009 | 17.172 | | | |
| 6. Chorweiler | 83.332 | 17.979 | | | |
| 7. Porz | 107.437 | 19.180 | | | |
| 8. Kalk | 107.036 | 19.246 | | | |
| 9. Mülheim | 144.944 | 26.229 | | | |
| Cologne | 1.022.627 | 162.205 | 257.218 | | |
| source: Statistisches Jahrbuch Köln 2004 (in German) ||||||
| District | Population (2006) | Population (2006) | Population (2006) | Population (2006) | Population (2006) |
| | Population (total) | Population age < 18 | Population age 18 < 35 | Population age 35 < 65 | Population age > 65 |
| 1. Innenstadt | 129.318 | 11.660 | 44.706 | 54.820 | 18.132 |
| 2. Rodenkirchen | 101.309 | 15.760 | 21.461 | 44.631 | 19.457 |
| 3. Lindenthal | 139.507 | 17.668 | 37.927 | 59.504 | 24.408 |
| 4. Ehrenfeld | 103.205 | 16.522 | 28.472 | 42.404 | 15.807 |
| 5. Nippes | 109.413 | 17.136 | 25.194 | 46.766 | 20.317 |
| 6. Chorweiler | 82.161 | 17.042 | 16.548 | 34.358 | 14.213 |
| 7. Porz | 106.567 | 18.566 | 21.325 | 46.803 | 19.873 |
| 8. Kalk | 108.146 | 19.205 | 26.351 | 42.844 | 19.746 |
| 9. Mülheim | 144.720 | 25.589 | 32.871 | 59.631 | 26.629 |
| Cologne | 1.024.346 | 159.148 | 254.855 | 431.761 | 178.582 |
| source: Bevölkerungsprognose Kölner Stadtteile 2006/2025 (in German) ||||||
| District | Population (2009) | Population (2009) | Population (2009) | Population (2009) | Population (2009) |
| | Population (total) | Population age < 18 | Population age 18 < 35 | Population age 35 < 65 | Population age > 65 |
| 1. Innenstadt | 126.301 | 11.254 | | | 18.139 |
| 2. Rodenkirchen | 100.827 | 15.946 | | | 20.332 |
| 3. Lindenthal | 137.870 | 18.693 | | | 25.302 |
| 4. Ehrenfeld | 103.708 | 16.065 | | | 16.163 |
| 5. Nippes | 111.141 | 17.246 | | | 20.650 |
| 6. Chorweiler | 80.459 | 15.798 | | | 14.947 |
| 7. Porz | 106.533 | 18.011 | | | 21.112 |
| 8. Kalk | 109.045 | 19.415 | | | 20.029 |
| 9. Mülheim | 144.419 | 25.152 | | | 26.793 |
| Cologne | 1.020.303 | 157.580 | 253.964 | 425.292 | 183.467 |
| source: Die Kölner Stadtteile in Zahlen 2010 (in German) ||||||

## Historic population data
### Roman Cologne

The walls of Colonia Agrippina covered an area of 96.8 hectares, but the population density within the walls remains uncertain.
| Date | Population |
| 50 | 30.000 |
| 150 | 50.000 |
| 250 | 15.000 |
| 350 | 15.000 |

### Medieval Cologne

Since the construction of the Medieval wall in 1180, the area of the old imperial city of Cologne has not changed for more than 600 years and was only extended over the old city walls in 1794, just short before the arrival of French troops and Cologne's incorporation into the First French Empire.
| Date | Population |
| 900 | |
| 1000 | |
| 1140 | 20.000 |
| 1180 | 40.000 |
| 1200 | |
| Date | Population |
| 1300 | |
| 1400 | |
| 1430 | 40.000 |
| 1500 | |

### Modern Cologne
#### 16th through 19th century

After 1815, the Kingdom of Prussia enforced the construction of fortifications which again hindered any growth for the city. Only with the acquisition of these fortifications in 1881, the city of Cologne had the possibility of a gradual territorial expansion. On 12. November 1883 a strip of territory from parts of the municipalities of Ehrenfeld, Kriel, Longerich, Müngersdorf and Rondorf was added to the city. Since 1886, the Cologne City Council intensified negotiations with the surrounding communities, and on 1 April 1888 ended in a first major incorporation.
| Date | Population |
| 1501 | |
| 1600 | 40.000 |
| 1670 | 37.000 |
| 1700 | 39.000 |
| Date | Population |
| 1701 | |
| 1714 | 42.015 |
| 1735 | 44.568 |
| 1794 | 44.512 |
| 1800 | |
| Date | Population |
| 1801 | 42.024 |
| 1810 | 45.029 |
| 1. December 1816 ¹ | 49.276 |
| 1. December 1819 ¹ | 55.355 |
| 1. December 1822 ¹ | 56.527 |
| 1. December 1825 ¹ | 59.049 |
| 1. December 1828 ¹ | 61.059 |
| 1. December 1831 ¹ | 65.953 |
| 3. December 1834 ¹ | 67.302 |
| 3. December 1837 ¹ | 72.237 |
| 3. December 1840 ¹ | 75.858 |
| 3. December 1843 ¹ | 83.418 |
| 3. December 1849 ¹ | 94.789 |
| 3. December 1850 | 95.500 |
| Date | Population |
| 3. December 1851 | |
| 3. December 1852 ¹ | 101.091 |
| 3. December 1855 ¹ | 106.852 |
| 3. December 1858 ¹ | 114.477 |
| 3. December 1861 ¹ | 120.568 |
| 3. December 1864 ¹ | 122.162 |
| 3. December 1867 ¹ | 125.172 |
| 1. December 1871 ¹ | 129.233 |
| 1. December 1875 ¹ | 135.371 |
| 1. December 1880 ¹ | 144.772 |
| 1. December 1885 ¹ | 161.401 |
| 1. December 1890 ¹ | 281.681 |
| 2. December 1895 ¹ | 321.564 |
| 1. December 1900 ¹ | 372.229 |

#### 20th century

The territorial expansion, beginning in the late 19th century, were significant marks for the city's population growth. Major communal reorganizations took place in 1910, 1914, 1922 and 1975.
| Date | Population |
| 31. December 1901 | 380.518 |
| 31. December 1902 | 392.882 |
| 31. December 1903 | 406.420 |
| 31. December 1904 | 417.480 |
| 1. December 1905 ¹ | 428.722 |
| 31. December 1906 | 440.376 |
| 31. December 1907 | 451.134 |
| 31. December 1908 | 461.891 |
| 31. December 1909 | 472.649 |
| 1. December 1910 ¹ | 516.527 |
| 31. December 1911 | 525.671 |
| 31. December 1912 | 538.302 |
| 31. December 1913 | 550.540 |
| 31. December 1914 | 642.848 |
| 31. December 1915 | |
| 1. December 1916 ¹ | 595.853 |
| 5. December 1917 ¹ | 609.244 |
| 31. December 1918 | |
| 31. December 1919 | 644.206 |
| 31. December 1920 | 657.175 |
| Date | Population |
| 31. December 1921 | 665.629 |
| 31. December 1922 | 683.363 |
| 31. December 1923 | 690.605 |
| 31. December 1924 | 696.168 |
| 31. December 1925 | 705.477 |
| 31. December 1926 | 713.633 |
| 31. December 1927 | 723.753 |
| 31. December 1928 | 733.075 |
| 31. December 1929 | 736.914 |
| 31. December 1930 | 740.082 |
| 31. December 1931 | 739.726 |
| 31. December 1932 | 741.283 |
| 31. December 1933 | 759.648 |
| 31. December 1934 | 760.422 |
| 31. December 1935 | 761.263 |
| 31. December 1936 | 762.154 |
| 31. December 1937 | 765.468 |
| 31. December 1938 | 767.102 |
| 31. December 1939 | 767.222 |
| December 1940 | 733.500 |
| Date | Population |
| December 1941 | 690.000 |
| December 1942 | 648.200 |
| December 1943 | 561.600 |
| December 1944 | 472.900 |
| 31. December 1945 | 453.566 |
| 31. December 1946 | 494.815 |
| 31. December 1947 | 515.355 |
| 31. December 1948 | 543.765 |
| 31. December 1949 | 573.557 |
| 31. December 1950 | 603.283 |
| 31. December 1951 | 630.232 |
| 31. December 1952 | 647.540 |
| 31. December 1953 | 670.031 |
| 31. December 1954 | 688.765 |
| 31. December 1955 | 712.561 |
| 31. December 1956 | 718.722 |
| 31. December 1957 | 737.991 |
| 31. December 1958 | 756.203 |
| 31. December 1959 | 773.280 |
| 31. December 1960 | 803.616 |
| Date | Population |
| 31. December 1961 | 816.542 |
| 31. December 1962 | 827.659 |
| 31. December 1963 | 835.832 |
| 31. December 1964 | 842.061 |
| 31. December 1965 | 854.479 |
| 31. December 1966 | 860.200 |
| 31. December 1967 | 854.717 |
| 31. December 1968 | 855.886 |
| 31. December 1969 | 864.754 |
| 31. December 1970 | 847.037 |
| 31. December 1971 | 846.479 |
| 31. December 1972 | 841.537 |
| 31. December 1973 | 832.396 |
| 31. December 1974 | 825.792 |
| 31. December 1975 | 1.013.771 |
| 31. December 1976 | 981.021 |
| 31. December 1977 | 976.761 |
| 31. December 1978 | 976.534 |
| 31. December 1979 | 976.136 |
| 31. December 1980 | 976.694 |
| Date | Population |
| 31. December 1981 | 971.403 |
| 31. December 1982 | 961.777 |
| 31. December 1983 | 940.663 |
| 31. December 1984 | 922.286 |
| 31. December 1985 | 916.153 |
| 31. December 1986 | 914.336 |
| 31. December 1987 | 930.907 |
| 31. December 1988 | 937.482 |
| 31. December 1989 | 946.280 |
| 31. December 1990 | 953.551 |
| 31. December 1991 | 956.690 |
| 31. December 1992 | 960.631 |
| 31. December 1993 | 962.517 |
| 31. December 1994 | 963.817 |
| 31. December 1995 | 965.697 |
| 31. December 1996 | 964.346 |
| 31. December 1997 | 964.311 |
| 31. December 1998 | 962.580 |
| 31. December 1999 | 962.507 |
| 31. December 2000 | 962.884 |

#### 21st century

| Date | Population |
| 31. December 2001 | 967.940 |
| 31. December 2002 | 968.639 |
| 31. December 2003 | 965.954 |
| 31. December 2004 | 969.709 |
| 31. December 2005 | 983.347 |
| 31. December 2006 | 989.766 |
| 31. December 2007 | 995.397 |
| 31. December 2008 | 995.420 |
| 31. December 2009 | 998.105 |
| 31. December 2010 | 1.007.119 |
| Date | Population |
| 31. December 2011 | 1.013.665 |
| 31. December 2012 | 1.024.373 |
| 31. December 2013 | 1.034.175 |
| 31. December 2014 | 1.046.680 |
| 31. December 2015 | 1.060.582 |