Winnebago County, Illinois
Demographics

Winnebago County, Illinois

Section Title: Demographics
Table Section Text: None

Historical population

Census	Pop.	%±

1840	4,609	—

1850	11,773	155.4%

1860	24,491	108.0%

1870	29,301	19.6%

1880	30,505	4.1%

1890	39,938	30.9%

1900	47,845	19.8%

1910	63,153	32.0%

1920	90,929	44.0%

1930	117,373	29.1%

1940	121,178	3.2%

1950	152,385	25.8%

1960	209,765	37.7%

1970	246,623	17.6%

1980	250,884	1.7%

1990	252,913	0.8%

2000	278,418	10.1%

2010	295,266	6.1%

Est. 2017	284,778	−3.6%

U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2017

Sentence(s)

As of the 2010 census, there were 295,266 people residing in Winnebago county.

final_sentence: As of the 2010 census, there were 295,266 people residing in Winnebago county.