Belvidere, Illinois
Demographics
As of the census of 2000, there were 20,820 people, 7,531 households, and 5,324 families residing in the city. The population density was 2,295.3 people per square mile (886.3/km²).

Belvidere, Illinois

Section Title: Demographics
Table Section Text: As of the census of 2000, there were 20,820 people, 7,531 households, and 5,324 families residing in the city. The population density was 2,295.3 people per square mile (886.3/km²).

Historical population

Census	Pop.	%±

1850	1,003	—

1860	2,446	143.9%

1870	3,231	32.1%

1880	2,951	−8.7%

1890	3,867	31.0%

1900	6,937	79.4%

1910	7,253	4.6%

1920	7,804	7.6%

1930	8,123	4.1%

1940	8,094	−0.4%

1950	9,422	16.4%

1960	11,223	19.1%

1970	14,061	25.3%

1980	15,176	7.9%

1990	15,958	5.2%

2000	20,820	30.5%

2010	25,585	22.9%

Est. 2016	25,070	−2.0%

U.S. Decennial Census

Sentence(s)

The population was 25,585 as of the 2010 census.

final_sentence: The population was 25,585 as of the 2010 census.