Columbia County Population 2018

Columbia County's estimated population is 4,047 with a growth rate of 1.25% in the past year according to the most recent United States census data. Columbia County is the 38th largest county in Washington.

Year Population Growth Growth Rate
20174,047501.25%
20163,997310.78%
20153,966-17-0.43%
20143,983-19-0.47%
20134,002250.63%
20123,977-27-0.67%
20114,004-90-2.20%
20104,094701.74%
19904,024-33-0.81%
19804,057-382-8.61%
19704,439-130-2.85%
19604,569-291-5.99%
19504,860-689-12.42%
19405,5492244.21%
19305,325-768-12.60%
19206,093-949-13.48%
19107,042-86-1.21%
19007,1284196.25%
18906,709-394-5.55%
18807,1030.00%

Columbia County Population Growth

Population Data via

Columbia County Race Data

Race Population Percentage
White3,69591.30%
Two or More Races942.32%
American Indian and Alaska Native681.68%
Asian441.09%
Black or African American240.59%
Native Hawaiian and Other Pacific Islander130.32%

Columbia County Population Pyramid

0k0k0k0k0k Male Population0k0k0k0k0k 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