Adams County Population 2018

Adams County's estimated population is 19,506 with a growth rate of 1.27% in the past year according to the most recent United States census data. Adams County is the 31st largest county in Washington.

Year Population Growth Growth Rate
201719,5062441.27%
201619,262610.32%
201519,20150.03%
201419,196540.28%
201319,1421640.86%
201218,978870.46%
201118,8911020.54%
201018,7895,18638.12%
199013,6033362.53%
198013,2671,25310.43%
197012,0142,08521.00%
19609,9293,34550.80%
19506,5843756.04%
19406,209-1,510-19.56%
19307,719-1,904-19.79%
19209,623-1,297-11.88%
191010,9206,080125.62%
19004,8402,742130.70%
18902,0980.00%

Adams County Population Growth

Population Data via

Adams County Race Data

Race Population Percentage
White17,23988.38%
American Indian and Alaska Native1,0295.28%
Two or More Races3051.56%
Black or African American2961.52%
Asian2651.36%
Native Hawaiian and Other Pacific Islander160.08%

Adams County Population Pyramid

0k0k0k1k1k1k1k Male Population0k0k0k1k1k1k1k 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