| Place Name | Mount Washington |
| Place Type | City |
| ZIP Code(s) | 40047 |
| County | Bullitt County |
| Area Code(s) | 502 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 9,181 |
| Population Growth Rate (2010-19) | 98.42% |
| Majority Ethnicity | White 95.34% |
| Metro/Micro Stats Area | Louisville/Jefferson County, KY-IN |
| US Congressional District(s) | Kentucky 2nd |
| State House Districts | 26,49,53 |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.34% |
| African American | 0.32% |
| Hispanic | 0.04% |
| Asian | 0.84% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 3.39% |