| Place Name | Rosslyn Farms |
| Place Type | Borough |
| ZIP Code(s) | 15106 15205 |
| County | Allegheny County |
| Area Code(s) | 412,878 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 485 |
| Population Growth Rate (2010-19) | 3.28% |
| Majority Ethnicity | White 97.16% |
| Metro/Micro Stats Area | Pittsburgh, PA |
| US Congressional District(s) | Pennsylvania 18th |
| State House Districts | 45 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.16% |
| African American | 0.26% |
| Hispanic | 0% |
| Asian | 0.78% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.81% |