Story County IA Information


Story County Subdivisions

Story County IA Data & Demographics (As of July 1, 2017)


Total Population 97,978
Daytime Population: Workers 51,259
Daytime Population: Residents 48,892
Total Daytime Population (TDP) 100,151
Ratio TDP/Total Population1 1.02
Population in Households 86,649
Population in Familes 56,156
Population in Group Qrtrs 11,329
Population Density2 171
Diversity Index3 31


Median Household Income $54,936
Average Household Income $72,199
Per Capita Income $28,259


Total Housing Units 39,156 (100%)
Owner Occupied HU 19,911 (50.9%)
Renter Occupied HU 17,137 (43.8%)
Vacant Housing Units 2,108 ( 5.4%)
Median Home Value $183,201
Average Home Value $215,400


Total Households 37,048
Average Household Size 2.34
Family Households 19,417
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 1.25% 0.76%
Households 0.89% 0.87%
Families 0.67% 0.74%
Median Household Income   1.46%
Per Capita Income   2.31%


Story County IA - Peer Comparisons by Rank and Percentile

The table below compares Story County to the other 99 counties and county equivalents in Iowa by rank and percentile using July 1, 2017 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 # 8 93rd
Population Density # 6 95th
Diversity Index # 19 82nd
Median Household Income # 21 80th
Per Capita Income # 29 72nd

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