County record · FIPS 08059
Jefferson County, CO
A joined view of reported 2024 election administration and the 2020–2024 American Community Survey profile for Colorado.
Population579,377ACS 2020–2024
Registered voters480,149100% jurisdiction coverage
Voters367,416100% jurisdiction coverage
Registered turnout76.52%Reported voters / registration
Ballot administration
Mail-ballot record
| Stage | Reported ballots | Jurisdiction coverage |
|---|---|---|
| Transmitted | 438,562 | 100% |
| Returned | 341,717 | 100% |
| Counted | 338,903 | 100% |
| Rejected | 2,814 | 100% |
Return rate77.92%
Rejection rate0.82%
A blank means the source did not provide enough information. It does not mean zero ballots.
Administrative capacity
Election infrastructure
Polling places34100% coverage
Poll workers802100% coverage
Drop boxes38100% coverage
Provisional ballots cast66100% coverage
Provisional acceptance30.30%Counted / cast where reported
Cross-state twin
Jefferson County, CO ↔ Waukesha County, WI
77.7% profile similarityPopulation579,377411,762
Median household income$110,656$106,076
Poverty6.68%5.23%
No vehicle3.98%3.48%
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 |
|---|---|
| Signature mismatch | 2,145 |
| Late | 258 |
| Missing signature | 73 |
| Missing documentation | 67 |
| Deceased | 5 |