Places beginning with AL in Illinois, United States
- Aladdin
- Alandale
- Albany
- Albany Park (subdivision)
- Albany, Township of
- Alba, Township of
- Albers
- Albion
- Albion 1 Election Precinct
- Albion 2 Election Precinct
- Albion 3 Election Precinct
- Alda
- Alden
- Alden, Township of
- Aldine Square (subdivision)
- Aldridge
- Aledo
- Alexander
- Alexander County
- Alexander Election Precinct
- Alexis
- Alexis Junction
- Algonquin
- Algonquin, Township of
- Alhambra
- Alhambra, Township of
- Aliceville
- Allen
- Allendale
- Allens Corners
- Allens Grove, Township of
- Allens Spring
- Allentown
- Allen, Township of
- Allenville
- Allerton
- Allin, Township of
- Allison, Township of
- Allright
- Alma
- Alma, Township of
- Almora
- Almora Heights
- Alonzo
- Alorton
- Alpha
- Alpine
- Alsey
- Alsey Election Precinct
- Alsip
- Alta
- Altamont
- Altamont
- Altgeld Gardens
- Altmar
- Alton
- Altona
- Alton, Township of
- Alto Pass
- Alto Pass Election Precinct
- Altorf
- Alto, Township of
- Alvin
- Alworth