Also See: Janesville, WI ZIP Codes & ZIP Code Maps
The City of Janesville is the 10th largest city in Wisconsin with a population of 65,206 as of July 1, 2021. Janesville ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Wisconsin. See peer rankings below.
The primary coordinate point for Janesville is located at latitude 42.6828 and longitude -89.0187 in Rock County. The formal boundaries for the City of Janesville encompass a land area of 33.75 sq. miles and a water area of 0.6 sq. miles. Rock County is in the Central time zone (GMT -6). The elevation is 837 feet.
The City of Janesville has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
Alternate Unofficial Names for Janesville: Black Hawk, E-nee-poro-poro.
|Total Population||65,206 (100%)|
|Population in Households||64,582 (99.0%)|
|Population in Families||50,107 (76.8%)|
|Population in Group Quarters1||624 ( 1.0%)|
|Median Household Income||$57,483|
|Average Household Income||$71,207|
|% of Income for Mortgage4||11%|
|Per Capita Income||$29,629|
|Total HU (Housing Units)||28,881 (100%)|
|Owner Occupied HU||17,558 (60.8%)|
|Renter Occupied HU||9,337 (32.3%)|
|Vacant Housing Units||1,987 ( 6.9%)|
|Median Home Value||$156,281|
|Average Home Value||$178,251|
|Housing Affordability Index3||168|
|Average Household Size||2.4|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.87%|
|Per Capita Income||2.26%|
|Owner Occupied HU||0.57%|
The table below compares Janesville to the other 778 incorporated cities, towns and CDPs in Wisconsin 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||# 10||99th|
|Population Density||# 73||91st|
|Median Household Income||# 450||42nd|
|Housing Affordability Index||# 285||37th|
|Per Capita Income||# 474||39th|
|Diversity Index||# 137||83rd|
Additional comparisons and rankings can be made with a VERY EASY TO USE Wisconsin Census Data Comparison Tool.