Grundy County IA Information


Grundy County Subdivisions

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


Total Population 12,530
Population in Households 12,376
Population in Familes 10,269
Population in Group Qrtrs 154
Population Density1 25
Diversity Index2 7


Median Household Income $61,174
Average Household Income $82,914
Per Capita Income $34,367


Total Housing Units 5,647 (100%)
Owner Occupied HU 4,224 (74.8%)
Renter Occupied HU 942 (16.7%)
Vacant Housing Units 481 ( 8.5%)
Median Home Value $142,049
Average Home Value $177,273


Total Households 5,166
Average Household Size 2.4
Family Households 3,588
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 0.07% -0.01%
Households 0.08% 0.0%
Families -0.05% -0.09%
Median Household Income   2.56%
Per Capita Income   3.1%


Grundy County IA - Peer Comparisons by Rank and Percentile

The table below compares Grundy 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 # 60 40th
Population Density # 56 44th
Diversity Index # 96 4th
Median Household Income # 12 89th
Per Capita Income # 4 97th

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