Illinois maps
The Illinois map shows the state outline and 102 county-level divisions . Compare the two views below and download either as SVG or PNG.
Preview the blank outline of Illinois
Illinois in the source file
The Census Bureau identifies Illinois with postal abbreviation IL and state FIPS code 17. Its 2025 county file has 102 county-level records. The fine lines in the first image trace those divisions within the state outline.
| Postal abbreviation | IL |
|---|---|
| State FIPS code | 17 |
| County-level records | 102 |
| Land area | 55,514 sq mi |
| Water area | 2,400 sq mi |
| Land area rank | 24 of 50 states |
The area figures are rounded conversions of the square-meter attributes in the state file. Water accounts for 4.1% of the file’s combined land and water area for Illinois; that figure describes the source data, not a shaded portion of the SVG. The land rank compares the 50 states in this same file and excludes Washington, D.C.
What is on the map?
The blank version isolates the outer boundary. The county and equivalent map adds boundaries from the matching 2025 county file. Some states include county equivalents as well as counties; the alphabetical list below uses the Census names for each record. The maps omit roads, city names, terrain, and current travel information.
The files are based on the Census Bureau’s national 1:5,000,000 cartographic boundaries. The dataset is generalized for display, so small islands and fine bends along a coast or river may be simplified. The source scale describes the boundary detail; enlarging the SVG keeps its lines sharp but does not add geographic precision. For local analysis or a legal boundary question, use an appropriate larger-scale official dataset.
County-level names in this map
The alphabetical names below come from the same 2025 county file used to draw the internal lines. Hover over a division in the map above to see its name. The names appear as tooltips and are not printed on the map; the list below is useful on touch screens and when looking up a name alphabetically.
Show all 102 names
- Adams County
- Alexander County
- Bond County
- Boone County
- Brown County
- Bureau County
- Calhoun County
- Carroll County
- Cass County
- Champaign County
- Christian County
- Clark County
- Clay County
- Clinton County
- Coles County
- Cook County
- Crawford County
- Cumberland County
- De Witt County
- DeKalb County
- Douglas County
- DuPage County
- Edgar County
- Edwards County
- Effingham County
- Fayette County
- Ford County
- Franklin County
- Fulton County
- Gallatin County
- Greene County
- Grundy County
- Hamilton County
- Hancock County
- Hardin County
- Henderson County
- Henry County
- Iroquois County
- Jackson County
- Jasper County
- Jefferson County
- Jersey County
- Jo Daviess County
- Johnson County
- Kane County
- Kankakee County
- Kendall County
- Knox County
- Lake County
- LaSalle County
- Lawrence County
- Lee County
- Livingston County
- Logan County
- Macon County
- Macoupin County
- Madison County
- Marion County
- Marshall County
- Mason County
- Massac County
- McDonough County
- McHenry County
- McLean County
- Menard County
- Mercer County
- Monroe County
- Montgomery County
- Morgan County
- Moultrie County
- Ogle County
- Peoria County
- Perry County
- Piatt County
- Pike County
- Pope County
- Pulaski County
- Putnam County
- Randolph County
- Richland County
- Rock Island County
- Saline County
- Sangamon County
- Schuyler County
- Scott County
- Shelby County
- St. Clair County
- Stark County
- Stephenson County
- Tazewell County
- Union County
- Vermilion County
- Wabash County
- Warren County
- Washington County
- Wayne County
- White County
- Whiteside County
- Will County
- Williamson County
- Winnebago County
- Woodford County
Choosing and printing a file
Use the blank outline when you plan to add your own labels or use the shape in a worksheet. Use the county-level version when the internal divisions matter. SVG is a vector format that stays clear when resized in a browser or compatible editor. PNG is a fixed 1,800 × 1,240 pixel image for software that does not accept SVG. Both show the same source boundaries. The printing guide explains paper size, margins, and attribution.
For a road or topographic map, use a source that includes those layers. The USGS National Map provides downloadable topographic maps and other geographic data. Our map types guide compares the purpose of each kind of map.
Source and attribution
Source: U.S. Census Bureau, 2025 Cartographic Boundary Files , national state and county KML at 1:5,000,000 scale. USA State Maps transformed those coordinates into the files above. When sharing an image, include the Census Bureau as the boundary source and retain the year and scale so readers can understand its limits.