Washtenaw County MI Information


Washtenaw County Subdivisions

Washtenaw County MI Data & Demographics (As of July 1, 2016)


Total Population 361,157
Population in Households 343,470
Population in Familes 246,800
Population in Group Qrtrs 17,687
Population Density1 512
Diversity Index2 49


Total Households 143,307
Average Household Size 2.4
Family Households 81,206
Average Family Size 3


Total Housing Units 154,602 (100%)
Owner Occupied HU 85,777 (55.5%)
Renter Occupied HU 57,530 (37.2%)
Vacant Housing Units 11,295 ( 7.3%)
Median Home Value $234,581
Average Home Value $272,268


Median Household Income $60,944
Average Household Income $85,989
Per Capita Income $34,838
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.74% 0.77%
Households 0.7% 0.75%
Families 0.46% 0.6%
Median Household Income   2.79%
Per Capita Income   1.66%
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.


Washtenaw County MI - Peer Comparisons by Rank and Percentile

The table below compares Washtenaw County to the other 83 counties and county equivalents in Michigan 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 # 6 94th
Population Density1 # 7 93rd
Diversity Index2 # 4 96th
Median Household Income # 3 98th
Per Capita Income # 2 99th

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