Benton County Population 2017

Benton County's estimated population is 193,686 with a growth rate of 1.76% in the past year according to the most recent United States census data. Benton County is the 10th largest county in Washington.

Year Population Growth Growth Rate
2016193,6863,3491.76%
2015190,3373,7752.02%
2014186,5622,0391.11%
2013184,5232,0371.12%
2012182,4861,9701.09%
2011180,5164,0032.27%
2010176,51363,95356.82%
1990112,5603,1162.85%
1980109,44441,90462.04%
197067,5405,4708.81%
196062,07010,70020.83%
195051,37039,317326.20%
194012,0531,10110.05%
193010,952490.45%
192010,9032,96637.37%
19107,9370.00%

Benton County Population Growth

Population Data via

Benton County Race Data

Race Population Percentage
White172,87289.25%
Asian6,0483.12%
Two or More Races5,5262.85%
Black or African American3,1831.64%
American Indian and Alaska Native2,2901.18%
Native Hawaiian and Other Pacific Islander4180.22%

Benton County Population Pyramid

0k2k4k6k8kBenton County Male Population0k2k4k6k8kBenton County Female Population

Population of Cities in Benton County

City 2010 Census 2016 Estimated Growth Growth Rate
Kennewick739818045464738.75%
Richland4811154989687814.30%
West Richland1183314198236519.99%
Prosser571360403275.72%
Benton City303232762448.05%
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