Washtenaw County MI Information


Washtenaw County Subdivisions

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  1. Washtenaw County 2019 Demographic Data
  2. Growth Rates forWashtenaw County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Michigan Research Tools (Easy Tools & Current Data)
  3. Michigan Data Comparison Tool - 2019 Demographics

Washtenaw County MI Data & Demographics (As of July 1, 2019)


Total Population 369,148
Population in Households 346,606
Population in Familes 248,268
Population in Group Qrtrs 22,542
Population Density 523
Diversity Index1 50


Median Household Income $71,983
Average Household Income $102,764
Per Capita Income $41,294
Wealth Index3 131


Total Housing Units 153,433 (100%)
Owner Occupied HU 87,028 (56.7%)
Renter Occupied HU 57,687 (37.6%)
Vacant Housing Units 8,718 ( 5.7%)
Median Home Value $272,255
Housing Affordability Index2 111


Total Households 144,715
Average Household Size 2.4
Family Households 81,446
Average Family Size 3
  1. 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.
  2. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  3. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2019 2019-2024
Population 0.74% 0.59%
Households 0.58% 0.6%
Families 0.34% 0.45%
Median Household Income   2.96%
Per Capita Income   2.84%


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, 2019 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 Density # 7 93rd
Diversity Index # 5 95th
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.

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Michigan Census Data Comparison Tool

Compare Michigan July 1, 2019 Data
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