Hamilton County IA Information


Hamilton County Subdivisions

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


Total Population 15,256
Population in Households 15,058
Population in Familes 11,973
Population in Group Qrtrs 198
Population Density1 27
Diversity Index2 26


Median Household Income $53,814
Average Household Income $70,967
Per Capita Income $29,783


Total Housing Units 7,219 (100%)
Owner Occupied HU 4,407 (61.0%)
Renter Occupied HU 1,966 (27.2%)
Vacant Housing Units 846 (11.7%)
Median Home Value $107,524
Average Home Value $137,384


Total Households 6,373
Average Household Size 2.36
Family Households 4,147
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 -0.33% -0.47%
Households -0.31% -0.47%
Families -0.47% -0.56%
Median Household Income   1.1%
Per Capita Income   1.75%


Hamilton County IA - Peer Comparisons by Rank and Percentile

The table below compares Hamilton County to the other 99 counties and county equivalents 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 # 52 48th
Population Density # 52 48th
Diversity Index # 26 75th
Median Household Income # 39 62nd
Per Capita Income # 27 74th

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