Doctor density varies by specialty and location. Illinois has 4,956 practicing family doctors. Broken out by city, family practice doctor density in Altamont is 3, in Alton is 23, in Aurora is 95, in Batavia is 7, in Belleville is 92, in Belvidere is 20, in Berwyn is 50, in Bloomington is 35, in Blue Island is 27, in Calumet City is 9, in Canton is 10, in Carbondale is 47, in Carthage is 6, in Centralia is 7, in Champaign is 38, in Chicago is 1,182, in Chicago Heights is 21, in Cicero is 16, in Clinton is 7, in Columbia is 6, in Countryside is 2, in Crystal Lake is 22, in Danville is 30, in Decatur is 62, in Des Plaines is 39, in Dixon is 16, in East Moline is 16, in Edwardsville is 3, in Effingham is 17, in Elgin is 43, in Elmhurst is 22, in Eureka is 11, in Evanston is 24, in Fairbury is 4, in Farmington is 3, in Freeport is 14, in Galesburg is 24, in Geneva is 25, in Granite City is 10, in Harrisburg is 11, in Harvard is 7, in Harvey is 10, in Herrin is 20, in Highland is 6, in Highland Park is 9, in Jacksonville is 12, in Joliet is 44, in Kankakee is 10, in Kewanee is 6, in Loves Park is 6, in Macomb is 13, in Marion is 22, in Mascoutah is 4, in Mattoon is 12, in Moline is 27, in Morris is 8, in Mount Vernon is 21, in Murphysboro is 13, in Naperville is 93, in Normal is 44, in North Chicago is 7, in Oregon is 3, in Ottawa is 13, in Palos Heights is 16, in Pana is 9, in Park Ridge is 60, in Paxton is 3, in Pekin is 21, in Peoria is 95, in Peru is 4, in Polo is 3, in Pontiac is 14, in Princeton is 5, in Quincy is 64, in Rochelle is 11, in Rock Island is 3, in Rockford is 145, in Rolling Meadows is 5, in Salem is 9, in Sandwich is 10, in Silvis is 6, in Springfield is 126, in Sterling is 16, in Sullivan is 4, in Sycamore is 9, in Toulon is 1, in Troy is 5, in Urbana is 58, in Vandalia is 4, in Warrenville is 8, in Washington is 8, in Waterloo is 5, in Watseka is 4, in Waukegan is 17, in West Frankfort is 12, in Wheaton is 58, in Wood Dale is 2, in Woodstock is 14, in Yorkville is 8, and in Zion is 8.

Most people think that Chicago, because of its size and popularity, is Illinois’ capital city, but that distinction belongs to Springfield, home of the Abraham Lincoln Museum. Illinois has hundreds of museums, numerous yearly art and ethnic festivals, a lakeshore bordering Lake Michigan, and the many national forests and parks that offers visitors camping, horseback riding, biking, kayaking, and fishing. Chicago is home to the Sears Tower, the Shedd Aquarium, the Art Institute of Chicago, the Adler Planetarium, the Museum of Science and Industry, and other cultural opportunities and restaurants in the Navy Pier area.

According to 2005 Census estimates, Illinois has a population of 12,763,371. Of this population, 3,172,677 are under the age of 18 and 1,523,937 are at or above the age of 65.