Washington County WI Information


Washington County Subdivisions

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  1. Washington County 2018 Demographic Data
  2. Growth Rates forWashington County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Wisconsin Research Tools (Easy Tools & Current Data)
  3. Wisconsin Data Comparison Tool - 2018 Demographics

Washington County WI Data & Demographics (As of July 1, 2018)


Total Population 136,712
Population in Households 135,639
Population in Familes 113,922
Population in Group Qrtrs 1,073
Population Density2 317
Diversity Index3 17


Median Household Income $75,459
Average Household Income $91,921
Per Capita Income $36,469


Total Housing Units 57,419 (100%)
Owner Occupied HU 41,890 (73.0%)
Renter Occupied HU 12,143 (21.1%)
Vacant Housing Units 3,386 ( 5.9%)
Median Home Value $250,023
Average Home Value $288,590


Total Households 54,033
Average Household Size 2.51
Family Households 38,471
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 0.44% 0.56%
Households 0.56% 0.64%
Families 0.44% 0.56%
Median Household Income   1.22%
Per Capita Income   2.32%


Washington County WI - Peer Comparisons by Rank and Percentile

The table below compares Washington County to the other 72 counties and county equivalents in Wisconsin by rank and percentile using July 1, 2018 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 # 11 86th
Population Density # 9 89th
Diversity Index # 42 43rd
Median Household Income # 4 96th
Per Capita Income # 4 96th

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

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Wisconsin Census Data Comparison Tool

Compare Wisconsin July 1, 2018 Data
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