About Us

The Chicago Southland Interstate Alliance (CSIA) is public-private partnership of the communities of Mokena, Orland Park and Tinley Park intended to attract business development along Interstate 80.


Orland Park

Located 25 miles southwest of Chicago’s Loop, the Village of Orland Park is a dynamic and progressive community of approximately 58,000 residents. The region's premier shopping and dining destination in the south suburbs, Orland Park ranks #5 in total retail sales of all Chicagoland Communities.

Tinley Park

Tinley Park is the 20th-largest city in Illinois and the 14th-largest city in the Metropolitan Chicago region. The Village of Tinley Park is located in both Cook and Will counties and has a population of more than 56,000 people and is one of the fastest growing suburbs southwest of Chicago.


Mokena, with a population of more than 20,000, is known for its outstanding schools, plentiful recreational opportunities, diverse economy, and a reputation for consistently having some of the lowest property and sales tax rates in the area.

- Meet the Mayors -

Mayor Keith I.

(708) 403 - 6167

Mayor Michael W.

(708) 444-5019

Mayor Frank A. Fleischer

(708) 479-3900