| Place Name | Monroe |
| Place Type | City |
| ZIP Code(s) | 45050 |
| County | Butler County Warren County |
| Area Code(s) | 283,513 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 12,220 |
| Population Growth Rate (2010-19) | 23.87% |
| Majority Ethnicity | White 88.88% |
| Metro/Micro Stats Area | Cincinnati, OH-KY-IN |
| US Congressional District(s) | Ohio 8thOhio 1st |
| State House Districts | 53,54 |
| State Senate Districts | 4,7 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.88% |
| African American | 4.81% |
| Hispanic | 0.35% |
| Asian | 0.89% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.06% |