Carroll County IA Information


Carroll County Subdivisions

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


Total Population 20,903
Population in Households 20,436
Population in Familes 16,209
Population in Group Qrtrs 467
Population Density1 37
Diversity Index2 12


Median Household Income $53,113
Average Household Income $67,692
Per Capita Income $28,284


Total Housing Units 9,376 (100%)
Owner Occupied HU 6,523 (69.6%)
Renter Occupied HU 2,138 (22.8%)
Vacant Housing Units 715 ( 7.6%)
Median Home Value $129,584
Average Home Value $153,514


Total Households 8,661
Average Household Size 2.36
Family Households 5,504
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 0.05% -0.03%
Households -0.03% -0.09%
Families -0.19% -0.18%
Median Household Income   2.73%
Per Capita Income   2.79%


Carroll County IA - Peer Comparisons by Rank and Percentile

The table below compares Carroll 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 # 31 70th
Population Density # 31 70th
Diversity Index # 71 29th
Median Household Income # 46 56th
Per Capita Income # 52 48th

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