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NXS-GRX-USA · Northern America · Regions

Illinois

First-level unit, United States of America: people, area, the units inside and neighbours, with risk values when released.

Page GRX-USA-REdition Baseline Edition 2026Evidence close 2026-09-30ISO USA / USStatus UN member stateValues not yet publishedMethod v1.0.0-draft
12,707,367
people (GHSL 2025)
145,761 km²
area
3.7%
of United States of America
102
units inside

01Map

Inside Illinois

The 102 ADM2 units of Illinois.

FIG 1 · 102 units inside Illinois
Loading the map

Units rise with people per km² · GHSL 2025 raster · terrain · ADM1 ADM2Risk values when released
Lowest fifthLow fifthMiddle fifthHigh fifthHighest fifthNo data
Column height and colour show people per km² by unit, in quantile fifths among the units shown (the key on the map gives the breaks); units with no people on the grid are grey, not the lowest class; the raster beneath is the GHSL 2025 population grid. Source observations, not index values. Select a unit to drill into the units inside it; the path above the map climbs back.
02Figures

People, area and density

Source observations from open grids summed inside the boundary; not index values.

People · GHSL 2025

12,707,367

3.7% of United States of America.

People · WorldPop 2025

12,996,686

+2% against GHSL; the two grids differ in method.

பரப்பு

145,761 km²

87 people per km².

குறியீடு

US-IL

Subdivision code as carried by the boundary source.

03Units

102 units inside Illinois

Each unit has its own page.

Boundary licences: Public Domain

Unit குறியீடு People (GHSL) People (WorldPop) Area km² Per km² Share Coast ≤ 10 m
Adams – 52,388 59,903 2,249.92 23 0.4% 0
Alexander – 4,949 2,456 655.72 8 0% 0
Bond – 16,841 17,460 990.54 17 0.1% 0
Boone – 57,169 58,105 726.84 79 0.4% 0
Brown – 6,315 5,805 797.23 8 0% 0
Bureau – 32,277 33,376 2,263.3 14 0.3% 0
Calhoun – 4,453 3,724 732.4 6 0% 0
Carroll – 12,403 14,068 1,207.07 10 0.1% 0
Cass – 12,211 12,844 989.82 12 0.1% 0
Champaign – 188,300 213,601 2,582.68 73 1.5% 0
Christian – 31,021 32,422 1,850.14 17 0.2% 0
Clark – 14,435 14,892 1,306.3 11 0.1% 0
Clay – 12,271 13,318 1,213.21 10 0.1% 0
Clinton – 32,860 35,260 1,302.75 25 0.3% 0
Coles – 48,368 42,040 1,317.49 37 0.4% 0
Cook – 5,097,216 5,290,453 2,474.16 2,060 40% 0
Crawford – 17,823 18,415 1,156.31 15 0.1% 0
Cumberland – 9,728 9,980 899.71 11 0.1% 0
De Witt – 15,237 15,355 1,048.51 15 0.1% 0
DeKalb – 96,175 96,443 1,635.56 59 0.8% 0
Douglas – 16,139 17,893 1,078.1 15 0.1% 0
DuPage – 951,097 982,140 868.86 1,095 7.5% 0
Edgar – 16,727 15,930 1,614.34 10 0.1% 0
Edwards – 5,526 5,393 578.19 10 0% 0
Effingham – 30,803 35,601 1,243.31 25 0.2% 0
Fayette – 19,442 20,771 1,876.08 10 0.2% 0
Ford – 13,261 14,048 1,257.6 11 0.1% 0
Franklin – 36,968 37,958 1,115.4 33 0.3% 0
Fulton – 32,413 30,742 2,286.63 14 0.3% 0
Gallatin – 4,398 3,999 851.53 5 0% 0
Greene – 12,199 10,572 1,413.64 9 0.1% 0
Grundy – 48,322 53,136 1,116.15 43 0.4% 0
Hamilton – 7,971 8,152 1,128.13 7 0.1% 0
Hancock – 25,939 22,452 2,108.05 12 0.2% 0
Hardin – 2,534 1,874 469.61 5 0% 0
Henderson – 6,407 5,810 1,023.65 6 0.1% 0
Henry – 47,119 52,186 2,138.64 22 0.4% 0
Iroquois – 25,124 24,304 2,895.14 9 0.2% 0
Jackson – 54,612 49,202 1,562.36 35 0.4% 0
Jasper – 8,034 8,618 1,288.62 6 0.1% 0
Jefferson – 35,303 37,282 1,512.58 23 0.3% 0
Jersey – 20,967 20,297 975.3 21 0.2% 0
Jo Daviess – 21,909 21,575 1,600.01 14 0.2% 0
Johnson – 11,439 14,527 903.11 13 0.1% 0
Kane – 654,522 609,177 1,356.29 483 5.1% 0
Kankakee – 105,375 105,910 1,761.05 60 0.8% 0
Kendall – 105,149 113,723 833.08 126 0.8% 0
Knox – 48,832 49,776 1,859.16 26 0.4% 0
Lake – 711,682 733,473 1,216.15 585 5.6% 0
LaSalle – 110,628 116,336 2,964.98 37 0.9% 0
Lawrence – 13,558 14,092 967.22 14 0.1% 0
Lee – 33,062 34,567 1,884.16 18 0.3% 0
Livingston – 34,759 33,558 2,707.99 13 0.3% 0
Logan – 26,589 26,044 1,600.81 17 0.2% 0
Macon – 100,408 102,068 1,514.09 66 0.8% 0
Macoupin – 40,785 41,567 2,244 18 0.3% 0
Madison – 260,065 273,251 1,916.94 136 2% 0
Marion – 36,657 39,481 1,493.42 25 0.3% 0
Marshall – 12,444 12,101 1,029.13 12 0.1% 0
Mason – 11,553 10,797 1,456.85 8 0.1% 0
Massac – 13,048 12,313 629.85 21 0.1% 0
McDonough – 29,145 23,704 1,524.56 19 0.2% 0
McHenry – 338,329 328,750 1,582.76 214 2.7% 0
McLean – 159,312 176,643 3,068.5 52 1.3% 0
Menard – 11,666 12,577 813.28 14 0.1% 0
Mercer – 15,522 16,812 1,472.24 11 0.1% 0
Monroe – 39,849 44,998 1,030.27 39 0.3% 0
Montgomery – 26,058 26,364 1,836.36 14 0.2% 0
Morgan – 30,980 30,230 1,481.98 21 0.2% 0
Moultrie – 16,013 17,427 890.99 18 0.1% 0
Ogle – 50,015 52,390 1,976.23 25 0.4% 0
Peoria – 170,304 184,310 1,630.91 104 1.3% 0
Perry – 20,056 20,518 1,157.16 17 0.2% 0
Piatt – 15,473 17,250 1,137 14 0.1% 0
Pike – 16,130 14,888 2,200.9 7 0.1% 0
Pope – 4,126 3,009 968.12 4 0% 0
Pulaski – 5,218 4,381 522.87 10 0% 0
Putnam – 5,370 5,489 443.26 12 0% 0
Randolph – 25,611 23,333 1,542.94 17 0.2% 0
Richland – 17,211 16,547 939.1 18 0.1% 0
Rock Island – 113,495 125,627 1,166.2 97 0.9% 0
Saline – 21,983 23,098 1,000.11 22 0.2% 0
Sangamon – 185,028 201,412 2,271 81 1.5% 0
Schuyler – 7,062 6,593 1,143.7 6 0.1% 0
Scott – 4,899 4,758 654.09 7 0% 0
Shelby – 23,705 24,756 1,991.09 12 0.2% 0
St. Clair – 273,090 262,319 1,743.85 157 2.1% 0
Stark – 5,581 5,189 746.89 7 0% 0
Stephenson – 42,694 42,470 1,460.09 29 0.3% 0
Tazewell – 124,783 132,165 1,703.5 73 1% 0
Union – 15,825 16,895 1,092.03 14 0.1% 0
Vermilion – 71,309 68,596 2,332.85 31 0.6% 0
Wabash – 11,289 11,735 592.82 19 0.1% 0
Warren – 15,013 15,691 1,399.98 11 0.1% 0
Washington – 14,243 14,101 1,457.46 10 0.1% 0
Wayne – 15,123 16,319 1,852.66 8 0.1% 0
White – 12,157 12,183 1,292.08 9 0.1% 0
Whiteside – 52,891 52,797 1,802.99 29 0.4% 0
Will – 778,767 748,660 2,199.22 354 6.1% 0
Williamson – 61,435 68,883 1,150.17 53 0.5% 0
Winnebago – 309,682 288,142 1,344.44 230 2.4% 0
Woodford – 36,105 40,020 1,403.55 26 0.3% 0
04வெளிப்பாடு

Open exposure layers

Count of H3 resolution-3 cells whose centre falls in the unit and that carry each Natural Earth layer.

Urban areas
1,844.4 H3 cells
Ports
3 H3 cells
Airports
1 H3 cells
Major roads
8,552 H3 cells
Railways
2,997.5 H3 cells
Rivers and lakes
1,413.8 H3 cells
05இடர்

Risk values

Values when released. Subnational risk values for Illinois publish with the edition from The Global Risks Index. Until then, run a scenario on open data for United States of America.
06Neighbours

Neighbouring units

07மூலங்கள்

Sources, credits and licences

ADM1 boundaries
geoBoundaries (William & Mary geoLab), gbOpen USA ADM1, source: United States Census Bureau, MAF/TIGER Database, licence: Public Domain · source · represents 2018
ADM2 boundaries
geoBoundaries (William & Mary geoLab), gbOpen USA ADM2, source: United States Census Bureau, MAF/TIGER Database, licence: Public Domain · source · represents 2018
Basemap
OpenFreeMap © OpenMapTiles (CC BY 4.0) · data © OpenStreetMap contributors (ODbL 1.0). Vector tiles requested by the reader’s browser, unmodified; the map falls back to plain land and sea when the host does not answer.
Terrain
Terrain Tiles (Mapzen, AWS Open Data), compiled from SRTM and other public elevation sources (NASA, USGS, ETOPO1, GMTED, EU-DEM under the Copernicus programme, Geoscience Australia, Kartverket, INEGI, LINZ, data.gov.uk). Display relief, not survey data.
People
GHSL 2025 population grid, European Commission Joint Research Centre (CC BY 4.0), shown at 0.05° and summed per unit; WorldPop 2025 (CC BY 4.0) as a second estimate. Units smaller than a grid cell take the density of the cell under them.
நாடுகள்
Natural Earth (public domain).
Elevation
GEBCO Compilation Group (2024) GEBCO 2024 Grid (public domain), reduced to 0.05°: the share of each cell’s land at or below 10 m, weighted by GHSL 2025 people for the low coastal zone.
Position
Boundaries are shown for location only and take no position on any boundary, name or status.