Onalaska, WI Profile: Facts, Map & Data


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Onalaska, Wisconsin - Basic Facts

The City of Onalaska had a population of 18,488 as of July 1, 2016. Onalaska 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 Onalaska is located at latitude 43.8882 and longitude -91.2004 in La Crosse County. The formal boundaries for the City of Onalaska (see map below) encompass a land area of 10.21 sq. miles and a water area of 0.6 sq. miles. La Crosse County is in the Central time zone (GMT -6). The elevation is 715 feet.

The City of Onalaska (GNIS ID: 1583861) 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.

The City of Onalaska is located within Town of Onalaska, a minor civil division (MCD) of La Crosse County.

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

Neighborhood Data

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City of Onalaska, WI Boundary Map

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


Total Population 18,488
Population in Households 18,348
Population in Familes 14,736
Population in Group Qrtrs 140
Population Density1 1,812
Diversity Index2 22


Total Households 7,641
Average Household Size 2.4
Family Households 4,994
Average Family Size 3


Total Housing Units 7,922 (100%)
Owner Occupied HU 4,868 (61.4%)
Renter Occupied HU 2,773 (35.0%)
Vacant Housing Units 281 ( 3.5%)
Median Home Value $173,130
Average Home Value $200,293


Median Household Income $57,702
Average Household Income $74,579
Per Capita Income $30,926
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.69% 0.64%
Households 0.7% 0.66%
Families 0.7% 0.55%
Median Household Income   2.88%
Per Capita Income   1.99%
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.

Onalaska, WI - Peer Comparisons by Rank and Percentile

The table below compares Onalaska 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 # 43 95th
Population Density1 # 88 89th
Diversity Index2 # 178 77th
Median Household Income # 221 72nd
Per Capita Income # 141 82nd

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

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