Janesville, WI Profile: Facts, Map & Data


Janesville Local Links & Resources:
Hotels | Resources | ALL Janesville Content

Also See: Janesville, WI ZIP Codes & ZIP Code Maps | Local Area Photos

Janesville, Wisconsin - Basic Facts

Real Estate Resources

The City of Janesville is the 10th largest city in Wisconsin with a population of 63,698 as of July 1, 2016. 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 42.6847 and longitude -89.0132 in Rock County. The formal boundaries for the City of Janesville (see map below) 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 (GNIS ID: 1583448) 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.

Beneath the boundary map are tables with Janesville population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Janesville: Black Hawk, E-nee-poro-poro.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Janesville, WI Boundary Map

Also See: BIG Map | Driving Directions | WI Congressional Districts
Boundary Maps: Rock County | Wisconsin Counties

Search the map for:

Janesville, WI Data & Demographics (As of July 1, 2016)


Total Population 63,698
Population in Households 63,067
Population in Familes 49,412
Population in Group Qrtrs 631
Population Density1 1,888
Diversity Index2 28


Total Households 26,160
Average Household Size 2.41
Family Households 16,856
Average Family Size 3


Total Housing Units 28,323 (100%)
Owner Occupied HU 17,261 (60.9%)
Renter Occupied HU 8,899 (31.4%)
Vacant Housing Units 2,163 ( 7.6%)
Median Home Value $133,065
Average Home Value $152,953


Median Household Income $49,234
Average Household Income $61,376
Per Capita Income $25,625
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.05% 0.2%
Households 0.22% 0.3%
Families 0.15% 0.25%
Median Household Income   1.61%
Per Capita Income   1.8%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Janesville, WI - Peer Comparisons by Rank and Percentile

The table below compares Janesville to the other 774 incorporated cities, towns and CDPs in Wisconsin by rank and percentile using July 1, 2016 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.

Variable Description Rank Percentile
Total Population # 10 99th
Population Density1 # 79 90th
Diversity Index2 # 128 84th
Median Household Income # 439 43rd
Per Capita Income # 383 51st

Additional comparisons and rankings can be made with a VERY EASY TO USE Wisconsin Census Data Comparison Tool.

Wisconsin Research Tools

Wisconsin Census Data Comparison Tool

Compare Wisconsin Census Data
Highest or Lowest: