Ada County ID Information


Ada County Subdivisions

Ada County ID Data & Demographics (As of July 1, 2016)


Total Population 439,143
Population in Households 429,055
Population in Familes 344,662
Population in Group Qrtrs 10,088
Population Density1 417
Diversity Index2 33


Total Households 164,686
Average Household Size 2.61
Family Households 109,137
Average Family Size 3


Total Housing Units 176,007 (100%)
Owner Occupied HU 108,390 (61.6%)
Renter Occupied HU 56,296 (32.0%)
Vacant Housing Units 11,321 ( 6.4%)
Median Home Value $214,794
Average Home Value $263,883


Median Household Income $56,572
Average Household Income $78,993
Per Capita Income $30,102
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.82% 1.9%
Households 1.68% 1.83%
Families 1.53% 1.74%
Median Household Income   2.91%
Per Capita Income   1.9%
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.


Ada County ID - Peer Comparisons by Rank and Percentile

The table below compares Ada County to the other 44 counties and county equivalents in Idaho 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 # 1 100th
Population Density1 # 1 100th
Diversity Index2 # 21 55th
Median Household Income # 2 98th
Per Capita Income # 2 98th

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