How this list was compiled: Items made on 2026-09-26. Licence: public domain (work of the United States government, 17 U.S.C. 105): https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2023/TGRSHP2023_TechDoc_Ch1.pdf
The drawing: Drawn for this site from U.S. Census Bureau 2023 cartographic boundary file cb_2023_us_county_5m (scale 1:5,000,000), https://www2.census.gov/geo/tiger/GENZ2023/shp/cb_2023_us_county_5m.zip, downloaded 2026-09-19. Surrounding land from U.S. Census Bureau 2023 cartographic boundary file cb_2023_us_state_5m (scale 1:5,000,000), https://www2.census.gov/geo/tiger/GENZ2023/shp/cb_2023_us_state_5m.zip, downloaded 2026-09-19. Albers equal-area conic projection, central meridian 89.3°W, standard parallels 37.9°N and 41.6°N. Outlines simplified; small islands are left out. Licence: public domain (work of the United States government, 17 U.S.C. 105): https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2023/TGRSHP2023_TechDoc_Ch1.pdf
How it works
This blank map of Illinois shows all 102 counties of Illinois, from Adams to Woodford, with Springfield, the capital, in Sangamon County; with Borders off it prints the plain outline.
Read the full guide
Blank, numbered or named
Blank prints the 102 shapes with nothing written; Numbered puts 1 on Adams and 102 on Woodford, in alphabetical order; Named prints every name, and Print the answer key gives the list.
Illinois outline map with every county
Cook County, home of Chicago, has the second most people of any county in the country. McLean County, around Bloomington, is the largest by area. Its neighbors, Wisconsin, Iowa, Missouri, Kentucky and Indiana, are drawn around it without numbers.
One hundred and two counties is a lot for one sheet: print Numbered and give each group a quarter of the state.
Questions and answers
How many counties does Illinois have?
One hundred and two in the Census Bureau count, from Adams County to Woodford County in alphabetical order; with so many, the numbered sheet is busy.
What county is Springfield in?
Springfield stands in Sangamon County, which is number 83 on the numbered sheet. Have students find it first and write Springfield beside it.
Which is the largest county in Illinois?
McLean County, around Bloomington and Normal in the middle of the state. Cook County, around Chicago, has the most people.
Which county of Illinois has the most people?
Cook County, around Chicago, has more people than any other county in Illinois, while the capital, Springfield, is in Sangamon County.