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Janesville

in Bremer / Black Hawk (Iowa)

Contents: City

The population development of Janesville as well as related information and services (weather, Wikipedia, Google, images).

Name CountyPopulation
Census
1990-04-01
Population
Census
2000-04-01
Population
Census
2010-04-01
Population
Census
2020-04-01
 
JanesvilleBremer / Black Hawk8468279301,038

Source: U.S. Census Bureau (web).

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.


Further information about the population structure:

Gender (C 2020)
Males511
Females523
Age Groups (C 2020)
0-17 years244
18-64 years591
65+ years199
Age Distribution (C 2020)
80+ years64
70-79 years77
60-69 years123
50-59 years141
40-49 years149
30-39 years148
20-29 years69
10-19 years123
0-9 years140
Urbanization (C 2020)
Rural1,034
»Race« (C 2020)
White1,003
Asian5
2 or more26
Ethnicity (C 2020)
Hispanic or Latino12
Other1,022

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