The map of Illinois above and the maps below are part of the US government’s now closed NationalAtlas.gov project.
However, they are too good to be lost forever so I’ve preserved them here.
You can learn more about the project and why it was closed down here.
Satellite Map Of Illinois
General Illinois State Facts
Demonym: Illinoisan
State Abbreviation: IL
Year Admitted To US: 1818
State Number (Out of 50): 21st
State Capital: Springfield
Total Area: 57,914 sq mi (149,995 km2)
State Area Ranking (Out of 50): 25th
Highest Point: Charles Mound – 1,235 ft (376.4 m)
Lowest Point: 279 ft (85 m)
State Website: https://www.illinois.gov/
List of Interstate Highways In Illinois
- I-24
- I-39
- I-41
- I-55
- I-57
- I-64
- I-70
- I-72
- I-74
- I-80
- I-88
- I-90
- I-94
- I-155
- I-255
- I-355
- I-270
- I-172
- I-474
- I-180
- I-280
- I-190
- I-290
- I-490
- I-294
- I-494
List of US Highways In Illinois
- US 124
- US 14
- US 150
- US 32
- US 330
- US 34
- US 430
- US 54
- US 66
List of Toll Roads In Illinois
- I-39 / I-90 / US 51 (Jane Addams Memorial Tollway)
- I-80 / I-94 / I-294 (Tri-State Tollway)
- I-88 / IL 56 / IL 110 (CKC) (Ronald Reagan Memorial Tollway)
- I-90 / Chicago Skyway
- I-355 (Veterans Memorial Tollway)
- IL 390 (Elgin-O’Hare Tollway)
Did you known Route 1 is the longest road in Illinois at 336 mi (541 km).
Illinois County Map
Illinois County Map With Important Cities & Towns
You can see more Illinois county maps here.
Illinois Population Density Map
Illinois split into 3 regions of equal population
Illinois Population Facts
State Population: 12,549,689
State Population Rank (out of 50): 6th
Population Density: 226/sq mi (87/km2)
Population Density Rank (out of 50): 12th
Top 10 Cities In Illinois
- Chicago: 2,664,452
- Aurora: 177,563
- Joliet: 150,489
- Naperville: 150,245
- Rockford: 146,120
- Elgin: 113,310
- Springfield: 112,544
- Peoria: 110,460
- Champaign: 89,189
- Waukegan: 87,642
Illinois Income & Taxes
Median Household Income: 78,020
Household Income Rank (out of 50): 19th
Top Marginal State Income Tax Rate: 4.95%
Average Sales Tax Rate*: 8.86%
Average Property Tax Rate*: 2.08%
* Note theses vary from city to city within the state.
Map of Illinois Lakes & Rivers
Largest Lake In Illinois: Lake Carlyle 41 (sq mi)
Longest River In Illinois: Mississippi River 2,320 miles (3,730 km)
Illinois Annual Precipitation Map
Illinois Köppen Climate Map
