County record · FIPS 29189
St. Louis County, MO
A joined view of reported 2024 election administration and the 2020–2024 American Community Survey profile for Missouri.
Population995,569ACS 2020–2024
Registered voters747,304100% jurisdiction coverage
Voters510,258100% jurisdiction coverage
Registered turnout68.28%Reported voters / registration
Ballot administration
Mail-ballot record
| Stage | Reported ballots | Jurisdiction coverage |
|---|---|---|
| Transmitted | 43,411 | 100% |
| Returned | 38,945 | 100% |
| Counted | 37,307 | 100% |
| Rejected | 1,638 | 100% |
Return rate89.71%
Rejection rate4.21%
A blank means the source did not provide enough information. It does not mean zero ballots.
Administrative capacity
Election infrastructure
Polling places230100% coverage
Poll workers3,501100% coverage
Drop boxesNot reported0% coverage
Provisional ballots cast1,160100% coverage
Provisional acceptance61.72%Counted / cast where reported
Cross-state twin
St. Louis County, MO ↔ Charleston County, SC
75.9% profile similarityPopulation995,569420,264
Median household income$82,936$88,494
Poverty9.79%11.32%
No vehicle6.62%5.88%
The closest profile among counties in other states. Similarity uses seven ACS measures and does not include vote choice.
Reported detail
Mail rejection reasons
| Reason | Ballots |
|---|---|
| Missing witness | 1,007 |
| Missing signature | 305 |
| Late | 304 |
| Deceased | 3 |