Delaware County IA Information


Delaware County Subdivisions

Delaware County IA Data & Demographics (As of July 1, 2016)


Total Population 18,306
Population in Households 18,088
Population in Familes 15,159
Population in Group Qrtrs 218
Population Density1 32
Diversity Index2 6


Total Households 7,314
Average Household Size 2.47
Family Households 5,126
Average Family Size 3


Total Housing Units 8,349 (100%)
Owner Occupied HU 5,775 (69.2%)
Renter Occupied HU 1,539 (18.4%)
Vacant Housing Units 1,035 (12.4%)
Median Home Value $135,990
Average Home Value $175,056


Median Household Income $51,207
Average Household Income $64,402
Per Capita Income $25,857
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.48% 0.17%
Households 0.56% 0.22%
Families 0.45% 0.16%
Median Household Income   1.94%
Per Capita Income   2.01%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Delaware County IA - Peer Comparisons by Rank and Percentile

The table below compares Delaware County to the other 99 counties and county equivalents in Iowa by rank and percentile using July 1, 2016 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 # 39 62nd
Population Density1 # 39 62nd
Diversity Index2 # 94 5th
Median Household Income # 38 63rd
Per Capita Income # 61 39th

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