Oklahoma Voting-age Population By County in 2021 (ACS-5Yrs)

Based on the US Census ACS-5Yrs estimates, in 2021, the voting-age population of Oklahoma was 2.99M which was 75.66% of the total Oklahoma population. Among all Oklahoma counties, Oklahoma had the highest voting-age population (588.12K), followed by Tulsa (495.77K), and Cleveland (229.46K).

On the other hand, the counties with the least voting-age population were: Cimarron (1.71K), Harmon (1.93K), and Harper (2.49K).

The chart and table below shows the voting-age population of each county and the percentage of each county's population that are of voting-age.

You can see similar information for other states and by state for the United States.