Pennsylvania's 21st congressional district
| Pennsylvania's 21st congressional district | |
|---|---|
| Obsolete district | |
| Created | 1830 |
| Eliminated | 2000 |
| Years active | 1833-2003 |
Pennsylvania's twenty-first congressional district was a congressional district in northwestern Pennsylvania. It was created following the 1830 census and was disbanded after the 2000 census removed two representatives from Pennsylvania.