Congressman Costello represents Illinois' 12th Congressional district which sits adjacent to the Mississippi River and extends from Alton down to Cairo in the southern part of the state. The counties of Madison and St. Clair are partially industrial, with areas of agricultural production that also extend throughout the southern counties along the river. In the 108th Congress, Franklin County, Pulaski County and the majority of Williamson County were added to the 12th district.

Illinois' 12th District is home to Scott Air Force Base, the Cahokia Mounds, the Shawnee National Forest, the Great Rivers Scenic Byway, and the Great Rivers Museum. The district is also the starting point for Lewis and Clark's journey westward.

Colleges and Universities:

• John A. Logan College
• Kaskaskia College
• Lewis and Clark Community College
• Rend Lake College
• Shawnee Community College
• Southwestern Illinois College

• McKendree University
• Southern Illinois University Carbondale
  • Plans for "Southern at 150"
• Southern Illinois University Edwardsville

Counties:

• Madison County
• St. Clair County
• Monroe County
• Randolph County
• Perry County
• Franklin County
• Jackson County
• Williamson County
• Union County
• Alexander County
• Pulaski County

Military:

• Scott Air Force Base

Municipalities:
Listed here are municipalities with web sites.

• Alton
• Belleville
• Bethalto
• Carbondale
• Chester
• Columbia
• Du Quoin
• East Alton
• Fairview Heights
• Marion
• Murphysboro
• O'Fallon
• Pinckneyville
• Red Bud
• Sesser
• Swansea
• Waterloo
• Wood River

If your city, town or village has a web site and it is not listed here, please contact web.costello@mail.house.gov

Tourism / Attractions / Recreation:

• Illinois Tourism Homepage
• Southernmost Illinois Tourism Bureau
• Tourism Bureau Southwestern Illinois

• Cahokia Mounds State Historic Site
• Gateway Grizzlies
• Gateway International Raceway
• Giant City State Park
• Great Rivers Scenic Byway
• Fairmount Park
• Fort de Chartres State Historic Site
• Lewis and Clark State Historic Site
• National Shrine of Our Lady of the Snows
• Pyramid State Recreation Area
• Rend Lake
• Southern Illinois Miners
• Southern Illinois Wineries
• Shawnee National Forest

Here is a list of municipalities in the 12th Congressional District. Click on the name to get a map of its location.

Alto Pass - Alorton - Alton - Anna - Ava - Baldwin - Belleville - Benton - Bethalto - Brooklyn - Buckner - Bush - Cairo - Cahokia - Cambria - Campbell Hill - Carbondale - Carterville - Caseyville - Centreville - Chester - Christopher - Cobden - Collinsville - Coello (North City) - Colp - Columbia - Coulterville - Crainville - Creal Springs - Cutler - De Soto - Dongola - Dowell - Dupo - Du Quoin - East Alton -
East Cape Girardeau - East Carondelet - East St. Louis - Elkville - Ellis Grove - Energy - Evansville - Ewing - Fairmont City - Fairview Heights - Fayetteville - Freeburg - Freeman Spur - Fults - Godfrey - Gorham - Grand Chain - Grand Tower - Granite City - Hartford - Hecker - Herrin - Hurst - Jonesboro - Johnston City - Karnak - Kaskaskia - Lebanon - Lenzburg - Logan (Hanaford) - Macedonia - Madison - Maeystown - Makanda - Marissa - Marion - Mascoutah - Mill Creek - Millstadt - Mound City - Mounds - Murphysboro - New Athens - New Baden - O'Fallon - Olmsted - Orient - Percy - Pinckneyville - Pittsburg - Pontoon Beach - Prairie du Rocher - Pulaski - Red Bud - Rockwood - Roxana - Royalton - Ruma -
St. Johns - St. Libory - Sauget - Sesser - Shiloh - Smithon - Sparta - South Roxana - Spillertown - Steeleville - Stonefort - Summerfield - Swansea - Tamaroa - Tamms - Thebes - Thompsonville - Tilden - Ullin - Valier - Valmeyer - Venice - Vergennes - Washington Park - Waterloo - West City - West Frankfort - White Ash - Willisville - Wood River - Zeigler