Hamilton County IA Information


Hamilton County Subdivisions

Hamilton County IA Data & Demographics (As of July 1, 2017)


Total Population 15,420
Daytime Population: Workers 6,949
Daytime Population: Residents 7,780
Total Daytime Population (TDP) 14,729
Ratio TDP/Total Population1 0.96
Population in Households 15,222
Population in Familes 12,206
Population in Group Qrtrs 198
Population Density2 27
Diversity Index3 24


Median Household Income $52,697
Average Household Income $66,331
Per Capita Income $27,770


Total Housing Units 7,219 (100%)
Owner Occupied HU 4,664 (64.6%)
Renter Occupied HU 1,760 (24.4%)
Vacant Housing Units 795 (11.0%)
Median Home Value $106,100
Average Home Value $135,656


Total Households 6,424
Average Household Size 2.37
Family Households 4,186
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 -0.22% -0.29%
Households -0.25% -0.3%
Families -0.41% -0.39%
Median Household Income   2.14%
Per Capita Income   2.5%


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, 2017 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 # 53 47th
Diversity Index # 27 74th
Median Household Income # 41 60th
Per Capita Income # 38 63rd

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