County record · FIPS 30017
Custer County, MT
A joined view of reported 2024 election administration and the 2020–2024 American Community Survey profile for Montana.
Population11,961ACS 2020–2024
Registered voters7,533100% jurisdiction coverage
Voters5,891100% jurisdiction coverage
Registered turnout78.20%Reported voters / registration
Ballot administration
Mail-ballot record
| Stage | Reported ballots | Jurisdiction coverage |
|---|---|---|
| Transmitted | 3,585 | 100% |
| Returned | 3,107 | 100% |
| Counted | 3,098 | 100% |
| Rejected | 9 | 100% |
Return rate86.67%
Rejection rate0.29%
A blank means the source did not provide enough information. It does not mean zero ballots.
Administrative capacity
Election infrastructure
Polling places9100% coverage
Poll workersNot reported0% coverage
Drop boxesNot reported0% coverage
Provisional ballots cast56100% coverage
Provisional acceptance98.21%Counted / cast where reported
Cross-state twin
Custer County, MT ↔ Rock County, MN
86.7% profile similarityPopulation11,9619,621
Median household income$70,605$71,295
Poverty11.34%10.62%
No vehicle5.12%5.82%
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 |
|---|---|
| Late | 6 |