Oskaloosa, IA Profile: Facts, Map & Data


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Oskaloosa, Iowa - Basic Facts

The City of Oskaloosa had a population of 11,542 as of July 1, 2016. Oskaloosa ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Oskaloosa is located at latitude 41.2922 and longitude -92.6409 in Mahaska County. The formal boundaries for the City of Oskaloosa (see map below) encompass a land area of 7.99 sq. miles and a water area of 0.01 sq. miles. Mahaska County is in the Central time zone (GMT -6). The elevation is 840 feet.

The City of Oskaloosa (GNIS ID: 468480) has a C2 Census Class Code which indicates an active incorporated place legally coextensive with a county subdivision but treated as independent of any county subdivision. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Oskaloosa is located within , a minor civil division (MCD) of Mahaska County.

Beneath the boundary map are tables with Oskaloosa 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

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 Oskaloosa, IA Boundary Map

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Oskaloosa, IA Data & Demographics (As of July 1, 2016)


Total Population 11,542
Population in Households 10,973
Population in Familes 8,389
Population in Group Qrtrs 569
Population Density1 1,445
Diversity Index2 18


Total Households 4,720
Average Household Size 2.32
Family Households 2,851
Average Family Size 3


Total Housing Units 5,193 (100%)
Owner Occupied HU 2,896 (55.8%)
Renter Occupied HU 1,824 (35.1%)
Vacant Housing Units 473 ( 9.1%)
Median Home Value $103,463
Average Home Value $138,165


Median Household Income $38,166
Average Household Income $50,988
Per Capita Income $21,493
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.03% -0.04%
Households -0.05% -0.06%
Families -0.04% -0.16%
Median Household Income   1.53%
Per Capita Income   1.79%
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.

Oskaloosa, IA - Peer Comparisons by Rank and Percentile

The table below compares Oskaloosa to the other 1,009 incorporated cities, towns and CDPs in Iowa 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 # 33 97th
Population Density1 # 109 89th
Diversity Index2 # 171 83rd
Median Household Income # 963 5th
Per Capita Income # 940 7th

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

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