Marshall County IA Information


Marshall County Subdivisions

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


Total Population 40,844
Population in Households 39,539
Population in Familes 31,784
Population in Group Qrtrs 1,305
Population Density2 71
Diversity Index3 53


Median Household Income $52,613
Average Household Income $64,706
Per Capita Income $25,063


Total Housing Units 16,831 (100%)
Owner Occupied HU 10,992 (65.3%)
Renter Occupied HU 4,547 (27.0%)
Vacant Housing Units 1,292 ( 7.7%)
Median Home Value $122,974
Average Home Value $145,647


Total Households 15,539
Average Household Size 2.54
Family Households 10,320
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 0.06% -0.09%
Households 0.0% -0.14%
Families -0.15% -0.24%
Median Household Income   1.57%
Per Capita Income   2.28%


Marshall County IA - Peer Comparisons by Rank and Percentile

The table below compares Marshall 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 # 15 86th
Population Density # 16 85th
Diversity Index # 4 97th
Median Household Income # 49 52nd
Per Capita Income # 93 7th

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