Also See: Janesville, IA ZIP Codes & ZIP Code Maps
The City of Janesville had a population of 987 as of July 1, 2021.
The primary coordinate point for Janesville is located at latitude 42.6461 and longitude -92.463 in Bremer County. The formal boundaries for the City of Janesville encompass a land area of 1.44 sq. miles and a water area of 0.05 sq. miles. Bremer County is in the Central time zone (GMT -6). The elevation is 899 feet.
While the primary coordinates for City of Janesville are located in Bremer County, it should be noted that the formal boundaries for this community also extend into and Black Hawk County.
The City of Janesville has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
|Total Population||987 (100%)|
|Population in Households||987 (100.0%)|
|Population in Families||813 (82.4%)|
|Population in Group Quarters1||0|
|Median Household Income||$73,506|
|Average Household Income||$81,215|
|% of Income for Mortgage4||14%|
|Per Capita Income||$34,015|
|Total HU (Housing Units)||445 (100%)|
|Owner Occupied HU||358 (80.4%)|
|Renter Occupied HU||69 (15.5%)|
|Vacant Housing Units||17 ( 3.8%)|
|Median Home Value||$246,918|
|Average Home Value||$270,265|
|Housing Affordability Index3||182|
|Average Household Size||2.31|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.61%|
|Per Capita Income||2.1%|
|Owner Occupied HU||0.77%|
The table below compares Janesville to the other 1,008 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
|Total Population||# 287||72nd|
|Population Density||# 477||53rd|
|Median Household Income||# 212||79th|
|Housing Affordability Index||# 320||32nd|
|Per Capita Income||# 310||69th|
|Diversity Index||# 651||36th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.