Janesville is a city located in Bremer County, Iowa. Janesville has a 2025 population of 1,057. Janesville is currently growing at a rate of 0.28% annually and its population has increased by 1.54% since the most recent census, which recorded a population of 1,041 in 2020.
The average household income in Janesville is $93,921 with a poverty rate of 5.75%.The median age in Janesville is 44.7 years: 44 years for males, and 45.3 years for females.
Data after 2023 is projected based on recent change
The racial composition of Janesville includes 99.11% White, and smaller percentages for Two or more races, other race and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 1,003 | 99.11% |
Two or more races | 7 | 0.69% |
Other race | 2 | 0.2% |
Married
Widowed
Divorced
Separated
Never Married
Janesville's average per capita income is $57,574. Household income levels show a median of $84,231. The poverty rate stands at 5.75%.
Name | Median | Mean |
---|---|---|
Families | $110,139 | $112,865 |
Married Families | $110,139 | - |
Households | $84,231 | $93,921 |
Non Families | $41,750 | $46,143 |
Average Income
Median Household Income
Poverty Rate