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Johnson County, IA

The certified 2024 map, county by county — Johnson in amber. Open it and every precinct inside is yours to model.

Model Johnson County, precinct by precinct →

Iowa by certified 2024 presidential result · Johnson County in amber · open the live map →

2024 president

Democratic D+38.1

Votes cast

86,068

State

Iowa

Grain

Precinct-level

Frequently asked

How did Johnson County vote in 2024?
D+38.1 for president — 58,846 Democratic · 26,087 Republican of 86,068 votes.
Can I model Johnson County precinct by precinct?
Yes — open the county in the simulator and every precinct inside it is editable, with real 2024 returns as the baseline. The county rolls up live into its statewide races.
What races cover Johnson County?
Every statewide race (U.S. Senate, Governor, the executive offices) plus its U.S. House and state-legislature districts — all modelable from the same county baseline.

Every county in Iowa

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The races above this county

Iowa U.S. Senate · Governor · the 2026 Senate board · the 2026 House board