Oskaloosa, IA Profile: Facts & Data


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

Also See: Oskaloosa, IA ZIP Codes & ZIP Code Maps | Local Area Photos

Oskaloosa, Iowa - Basic Facts

The City of Oskaloosa had a population of 11,351 as of July 1, 2018. 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, 2018.

Explore a Iowa Address and get...

Boundary Maps, Demographic Data, School Zones Input an address to see boundary maps and recent demographic data for the neighborhood, city, county, and ZIP Code. You'll also find the school attendance zones for that address. For a rapid response, use this format: 321 Main Street, City, IA 12345.


Oskaloosa, IA Data & Demographics (As of July 1, 2018)


Total Population 11,351
Population in Households 10,806
Population in Familes 8,147
Population in Group Qrtrs 545
Population Density1 1,421
Diversity Index2 21


Median Household Income $40,787
Average Household Income $54,475
Per Capita Income $22,860


Total Housing Units 5,139 (100%)
Owner Occupied HU 2,615 (50.9%)
Renter Occupied HU 2,023 (39.4%)
Vacant Housing Units 501 ( 9.7%)
Median Home Value $107,286
Average Home Value $137,390


Total Households 4,638
Average Household Size 2.33
Family Households 2,782
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population -0.18% -0.22%
Households -0.25% -0.27%
Families -0.33% -0.4%
Median Household Income   2.47%
Per Capita Income   2.77%

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, 2018 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 # 34 97th
Population Density # 120 88th
Diversity Index # 158 84th
Median Household Income # 956 5th
Per Capita Income # 951 6th

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

Quick & Easy Ways to...

  1. Get Current Demographic Data for Cities, Towns, and ZIP Codes
  2. Explore a Local Address and get...
  3. View Boundary Maps, for Cities, Towns, and ZIP Codes
  4. Locate Physical, Cultural, and Historical Features
  5. Research Public Schools & Attendance Zones

Iowa Census Data Comparison Tool

Compare Iowa July 1, 2018 Data
Highest or Lowest: