McClain County Population 2017

McClain County's estimated population is 38,682 with a growth rate of 1.73% in the past year according to the most recent United States census data. McClain County is the 28th largest county in Oklahoma.

Year Population Growth Growth Rate
201638,6826591.73%
201538,0237431.99%
201437,2807682.10%
201336,5128972.52%
201235,6154391.25%
201135,1764481.29%
201034,72811,93352.35%
199022,7952,50412.34%
198020,2916,13443.33%
197014,1571,41711.12%
196012,740-1,941-13.22%
195014,681-4,524-23.56%
194019,205-2,370-10.98%
193021,5752,24911.64%
192019,3263,66723.42%
191015,6592,77121.50%
190012,8880.00%

McClain County Population Growth

Population Data via

McClain County Race Data

Race Population Percentage
White32,83984.89%
American Indian and Alaska Native2,5896.69%
Two or More Races2,0585.32%
Black or African American3140.81%
Asian1790.46%
Native Hawaiian and Other Pacific Islander440.11%

McClain County Population Pyramid

0k1k1k2kMcClain County Male Population0k1k1k2kMcClain County Female Population

Population of Cities in McClain County

City 2010 Census 2016 Estimated Growth Growth Rate
Newcastle76829652197025.64%
Blanchard73918463107214.50%
Purcell617064422724.41%
Dibble795839445.53%
Wayne688728405.81%
Washington618650325.18%
Byars255269145.49%
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