Washington County Population 2018

Washington County's estimated population is 25,022 with a growth rate of 0.77% in the past year according to the most recent United States census data. Washington County is the 45th largest county in Missouri.

Year Population Growth Growth Rate
201725,0221900.77%
201624,832480.19%
201524,784-285-1.14%
201425,069-66-0.26%
201325,135560.22%
201225,079-15-0.06%
201125,094-100-0.40%
201025,1944,81423.62%
199020,3802,39713.33%
198017,9832,89719.20%
197015,0867405.16%
196014,346-343-2.34%
195014,689-2,803-16.02%
194017,4923,04221.05%
193014,4506474.69%
192013,8034253.18%
191013,378-885-6.20%
190014,2631,1108.44%
189013,1532571.99%
188012,8961,17710.04%
187011,7191,99620.53%
18609,72391210.35%
18508,8111,59822.15%
18407,2134296.32%
18306,7844,015145.00%
18202,7690.00%

Washington County Population Growth

Population Data via

Washington County Race Data

Race Population Percentage
White23,65994.55%
Black or African American5882.35%
Two or More Races3471.39%
American Indian and Alaska Native1250.50%
Asian700.28%
Native Hawaiian and Other Pacific Islander60.02%

Washington County Population Pyramid

0k0k0k1k1k1k Male Population0k0k0k1k1k1k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990