Washington County MO Information


Washington County Subdivisions

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


Total Population 25,354
Population in Households 24,263
Population in Familes 19,993
Population in Group Qrtrs 1,091
Population Density2 33
Diversity Index3 12


Median Household Income $37,822
Average Household Income $51,118
Per Capita Income $19,661


Total Housing Units 11,218 (100%)
Owner Occupied HU 7,413 (66.1%)
Renter Occupied HU 1,958 (17.5%)
Vacant Housing Units 1,847 (16.5%)
Median Home Value $94,142
Average Home Value $140,982


Total Households 9,371
Average Household Size 2.59
Family Households 6,643
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  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.


2010-2017 2017-2022
Population 0.08% -0.09%
Households 0.02% -0.13%
Families -0.08% -0.2%
Median Household Income   0.98%
Per Capita Income   1.75%


Washington County MO - Peer Comparisons by Rank and Percentile

The table below compares Washington County to the other 115 counties and county equivalents in Missouri 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 # 45 62nd
Population Density # 56 52nd
Diversity Index # 84 30th
Median Household Income # 93 20th
Per Capita Income # 107 8th

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