Bremen Township covers an area of 37.8 square miles, with 13 municipalities within those boundaries and just over 107,000 residents as of the 2020 census. Bremen Township is bordered by Harlem Avenue (Illinois Route 43) on the west, 135th Street on the north, Western Avenue on the east and 183rd Street on the south.
The communities served are as follows:
- Blue Island (the remaining portion lies in Worth Township) Click the link for more information about Blue Island.
- Country Club Hills (North side of 183rd street with the remaining portion residing in Rich Township) Click the link for more information about Country Club Hills.
- Crestwood (South side of 135th with the remaining portion residing in Worth Township) Click the link for more information about Crestwood.
- Harvey (West side of Western with the remaining portion residing in Thornton Township) Click the link for more information about Harvey.
- Hazel Crest (North side of 183rd and west side of western) Click the link for the website.
- Homewood (North side of 183rd and west side of western with the remaining portion residing in both Thornton Township and Rich Township) Click the link for more information about Homewood.
- Markham (West of western with the remaining portion residing in Thornton Township) Click the link for more information about Markham.
- Midlothian Click the link for more information about Midlothian.
- Oak Forest Click the link for more information about Oak Forest.
- Orland Park (the extreme eastern edge of Harlem avenue (Rt. 43 Orland Park), with the remaining 99% lying mostly in Orland Township with small portions in Palos Township and Frankfort Township) Click the link for more information about Orland Park.
- Posen (West side of Western avenue with the remaining portion residing in Thornton Township) Click the link for more information about Posen.
- Robbins (South side of 135th street with the remaining portion residing in Worth Township) Click the link for more information about Robbins.
- Tinley Park (North side of 183rd and east side of Harlem avenue (Rt. 43) with the remaining portion of Tinley Park has a large portion which resides in Orland Township with smaller sections in Rich Township and Frankfort Township, Will County) Click the link for more information about Tinley Park.
