Janesville Flag

Janesville

County:
Bremer County
County Seat:
No
Area (mi²):
1.39
State:
Iowa

Janesville is a city located in Bremer County, Iowa. Janesville has a 2026 population of 1,052. Janesville is currently growing at a rate of 0.48% annually and its population has increased by 1.45% since the most recent census, which recorded a population of 1,037 in 2020.

1.1K
Total Population
757
Density (mi²)
5 0.48%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)