Places beginning with PL in Illinois, United States
- Placerdale (subdivision)
- Plainfield
- Plainfield
- Plainfield, Township of
- Plainview
- Plainville
- Plano
- Plato Center
- Plato Corners
- Plato, Township of
- Plattville
- Pleak
- Pleasant Grove
- Pleasant Grove, Township of
- Pleasant Hill
- Pleasant Hill
- Pleasant Hill (historical)
- Pleasant Hill, Township of
- Pleasant Mound
- Pleasant Mound, Township of
- Pleasant Plains
- Pleasant Ridge
- Pleasant Ridge (historical)
- Pleasant Ridge, Township of
- Pleasant, Township of
- Pleasant Vale, Township of
- Pleasant Valley
- Pleasant Valley, Township of
- Pleasant View
- Pleasant View, Township of
- Plumfield
- Plum Grove Village (subdivision)
- Plum Hill
- Plum Hill, Township of
- Plymouth