Carroll County IA Information


Carroll County Subdivisions

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  1. Carroll County 2018 Demographic Data
  2. Growth Rates forCarroll County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Iowa Research Tools (Easy Tools & Current Data)
  3. Iowa Data Comparison Tool - 2018 Demographics

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 Density2 37
Diversity Index3 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. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
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.

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Iowa Census Data Comparison Tool

Compare Iowa July 1, 2018 Data
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