Arapahoe County, CO — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
655,709
Male
327,215
49.9%
Female
328,494
50.1%
Median Age
37.3 yrs
Avg Household Size
2.6
Foreign Born
16.0%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher31.6%
High School or Higher44.5%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.4%
Disability
0.0%
Non-English Home
5.5%
Married
42.0%
Arapahoe County, CO has a population of 655,709 according to 2023 Census Bureau estimates. The median age is 37.3 years. The largest racial or ethnic group is White at 61.9% of the population. 31.6% of residents hold a bachelor's degree or higher. 16.0% of residents are foreign-born.