Iowa·IA·FIPS 19153

Polk County

Voted Democratic in 2024 · 258,067 votes cast

About Polk County

Polk County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 492,401, and was estimated to be 516,546 in 2025, making it the most populous county in Iowa. The county seat and the largest city is Des Moines, which is also the capital city of Iowa. Polk County is included in the Des Moines–West Des Moines, IA Metropolitan Statistical Area.

2024 Presidential Results

All candidates · Polk County, Iowa

Kamala D Harris(Democrat)

108.6%280,150

Won by 55,670 votes

Donald J Trump(Republican)

87.0%224,480

Overvotes(Other)

3.5%9,082

Chase Oliver(Libertarian)

0.9%2,422

Margin History

Red = Republican, Blue = Democratic

2024D+10.8

2020D+15.0

2016D+11.4

🔴

Swung Right in 2024

Polk County shifted 4.2 points toward Republicans compared to 2020. Voter turnout decreased by 0.3%.

Polk County — Local Discussion

0 messages

What does Polk County really think?

Elections happen once every 4 years. On constitution.vote, your voice is heard every day. Join the assembly and vote on the issues that matter to Iowa.

Join the Assembly →Vote on Polls

Election data: MIT Election Data Science Lab, Harvard Dataverse (CC BY 4.0)