McClain County, OK — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
43,779
Male
21,864
49.9%
Female
21,915
50.1%
Median Age
38.9 yrs
Avg Household Size
2.7
Foreign Born
3.5%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher18.8%
High School or Higher39.7%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.1%
Disability
0.0%
Non-English Home
7.6%
Married
48.5%
McClain County, OK has a population of 43,779 according to 2023 Census Bureau estimates. The median age is 38.9 years. The largest racial or ethnic group is White at 79.5% of the population. 18.8% of residents hold a bachelor's degree or higher. 3.5% of residents are foreign-born.