| Place Name | St. Matthews |
| Place Type | City |
| ZIP Code(s) | 40205 40207 40220 40222 |
| County | Jefferson County |
| Area Code(s) | 502 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 17,529 |
| Population Growth Rate (2010-19) | 0.35% |
| Majority Ethnicity | White 88.59% |
| Metro/Micro Stats Area | Louisville/Jefferson County, KY-IN |
| US Congressional District(s) | Kentucky 3rd |
| State House Districts | 32,34,41,43 |
| State Senate Districts | 19,26,36 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.59% |
| African American | 5.38% |
| Hispanic | 0.03% |
| Asian | 2.92% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.09% |