Iowa Black Hawk County Bremer County
Janesville
A city in Black Hawk County, Iowa — population 1,050 as of 2022.
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Today
76°F
Sunny
Tonight
56°F
Partly Cloudy3% precip
Monday
77°F
Mostly Sunny7% precip
Monday Night
60°F
Partly Cloudy1% precip
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Janesville by the numbers
Population
1,050Population figure, 2022
Households & income
- Median age
- 47
- Households
- 361
- Persons per household
- 2.5
- Median household income
- $103,542
- Median house value
- $221,700