Cowlitz County Population 2017

Cowlitz County's estimated population is 105,160 with a growth rate of 1.72% in the past year according to the most recent United States census data. Cowlitz County is the 12th largest county in Washington.

Year Population Growth Growth Rate
2016105,1601,7821.72%
2015103,3781,2721.25%
2014102,1063220.32%
2013101,784-56-0.05%
2012101,840-538-0.53%
2011102,378-35-0.03%
2010102,41320,29424.71%
199082,1192,5713.23%
198079,54810,93215.93%
197068,61610,81518.71%
196057,8014,4328.30%
195053,36913,21432.91%
194040,1558,24925.85%
193031,90620,115170.60%
192011,791-770-6.13%
191012,5614,68459.46%
19007,8771,96033.12%
18905,9173,855186.95%
18802,0621,332182.47%
187073032479.80%
18604060.00%

Cowlitz County Population Growth

Population Data via

Cowlitz County Race Data

Race Population Percentage
White94,79490.14%
Two or More Races3,4653.29%
American Indian and Alaska Native2,1372.03%
Asian1,6761.59%
Black or African American9360.89%
Native Hawaiian and Other Pacific Islander3700.35%

Cowlitz County Population Pyramid

0k1k2k3k4kCowlitz County Male Population0k1k2k3k4kCowlitz County Female Population

Population of Cities in Cowlitz County

City 2010 Census 2016 Estimated Growth Growth Rate
Longview36836373375011.36%
Kelso11914120471331.12%
Woodland554959524037.26%
Kalama234424841405.97%
Castle Rock21172212954.49%
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