Mercer County
Mercer County — County in the United States.
County
Population
399,289
| Year | Population |
|---|---|
| 2020 | 386,434 |
| 2021 | 382,139 |
| 2022 | 387,024 |
| 2023 | 391,369 |
| 2024 | 397,329 |
| 2025 | 399,289 |
Election administration
| Measure | 2024 | 2022 | 2020 |
|---|---|---|---|
| Precincts | 243 | 243 | 243 |
| Polling places | 101 | 120 | — |
| Election Day polling places | 94 | 110 | 71 |
| Early-voting polling places | 7 | 7 | — |
| Poll workers | — | — | 1,038 |