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St. Louis County voter turnout

How many people does one vote speak for in St. Louis County, Missouri?

Each vote here counts for 2.0 people

Only 50% of eligible citizens in St. Louis County voted in the 2022 midterm.

2024 presidential: 68% turnout · 1.5 people per vote

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2022 midterm turnout
49.7%
2.0 people per vote
2024 presidential turnout
67.6%
1.5 people per vote
Eligible citizens
743,682
citizens 18+
Didn’t vote in 2022
374,054
eligible citizens
Rank in Missouri
#96 of 115
for vote power

Turnout in St. Louis County

In the November 2022 midterm, 369,628 of St. Louis County’s 743,682 eligible citizens voted: 49.7% turnout. That’s 5.6 points higher than Missouri overall (44.1%) and 3.7 points higher than the national rate (46.0%). With 374,054 eligible citizens sitting it out, each ballot cast spoke for 2.0 people.

In the 2024 presidential election, turnout was 67.6%, so each ballot spoke for 1.5 people. Midterm turnout here ran 17.9 points below the presidential year, which is why every vote in a midterm like 2026 carries extra weight.

St. Louis County ranks #96 of 115 counties in Missouri for vote power (#1 has the lowest turnout, so each vote there counts for the most people).

Election Day is Tuesday, November 3, 2026 — register or check your status at vote.org.

Counties near St. Louis County in the Missouri ranking (2022 midterm)
CountyRankTurnoutPer vote
St. Clair County#9349.4%2.0
Reynolds County#9449.5%2.0
Platte County#9549.7%2.0
St. Louis County#9649.7%2.0
Dade County#9749.8%2.0
Chariton County#9849.9%2.0
Mercer County#9950.0%2.0

See all 115 Missouri counties ranked →

Sources. Votes cast: MIT Election Data and Science Lab, county presidential returns (2024) and precinct-level returns (2022; highest statewide or U.S. House vote total per county). Eligible citizens: U.S. Census Bureau citizen voting-age population, 2020–2024 ACS 5-year estimates. How it works.