Mahaska County IA Information


Mahaska County Subdivisions

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


Total Population 22,536
Population in Households 21,848
Population in Familes 17,725
Population in Group Qrtrs 688
Population Density1 40
Diversity Index2 13


Total Households 9,021
Average Household Size 2.42
Family Households 6,028
Average Family Size 3


Total Housing Units 9,830 (100%)
Owner Occupied HU 6,307 (64.2%)
Renter Occupied HU 2,714 (27.6%)
Vacant Housing Units 809 ( 8.2%)
Median Home Value $117,229
Average Home Value $151,911


Median Household Income $47,793
Average Household Income $59,063
Per Capita Income $24,068
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.11% 0.04%
Households 0.08% 0.03%
Families -0.04% -0.04%
Median Household Income   2.1%
Per Capita Income   2.06%
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.


Mahaska County IA - Peer Comparisons by Rank and Percentile

The table below compares Mahaska County to the other 99 counties and county equivalents 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 # 27 74th
Population Density1 # 28 72nd
Diversity Index2 # 54 46th
Median Household Income # 66 34th
Per Capita Income # 85 15th

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