Illinois County Map shows the locational details of the 102 counties of the state. All the counties of Illinois state are administered by individual county seats. Some of the major counties of Illinois include Cass, Bond, Alexander, Clinton, Bureau, Clark, Brown, Clay, DuPage, Christian, Hardin, Jackson, Ford, Lake, Woodford, Will, Union, Wabash and Morgan, among many others. The county map of Illinois also provides a list of all the 102 counties of the state. Some of the Illinois counties along with date of foundation are mentioned below:
- Calhoun county – 1825
- Bond County – 1817
- Cass county – 1837
- Edgar county – 1823
- Cook county – 1831
- Jasper county - 1831
- Lake county - 1839
- Menard county - 1839
- Pulasky county - 1843
Apart from the above mentioned ones, the state of Illinois houses a number of other counties too. While Moultrie county of Illinois has a total population of 14, 287 (as per census 2000), Saline county is populated with 26, 7333 people. The total area covered by Adams county of Illinois state is 857 sq miles, whereas the Clark county spans over 502 sq miles of area. Providing a fair representation of the extensive range of counties the Illinois county map, in a way, facilitates the understanding of the geographical sub-division of the state.
