O'Brien County IA Information


O'Brien County Subdivisions

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  1. O'Brien County 2018 Demographic Data
  2. Growth Rates forO'Brien 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

O'Brien County IA Data & Demographics (As of July 1, 2018)


Total Population 14,379
Population in Households 13,994
Population in Familes 11,135
Population in Group Qrtrs 385
Population Density2 25
Diversity Index3 20


Median Household Income $49,497
Average Household Income $69,520
Per Capita Income $29,665


Total Housing Units 6,649 (100%)
Owner Occupied HU 4,324 (65.0%)
Renter Occupied HU 1,753 (26.4%)
Vacant Housing Units 572 ( 8.6%)
Median Home Value $99,348
Average Home Value $136,159


Total Households 6,077
Average Household Size 2.3
Family Households 3,879
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 -0.02% 0.04%
Households 0.02% 0.07%
Families -0.15% -0.02%
Median Household Income   0.96%
Per Capita Income   1.48%


O'Brien County IA - Peer Comparisons by Rank and Percentile

The table below compares O'Brien 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 # 56 44th
Population Density # 55 45th
Diversity Index # 32 68th
Median Household Income # 79 21st
Per Capita Income # 28 73rd

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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