Places
Data from November 2026
The counties of Illinois
Illinois has 102 counties. The most populous is Cook County (5,182,090 people); the most expensive homes are in DuPage County ($391,400) and the least expensive in Alexander County ($59,800). Each has its own page with prices, limits and help nearby.
Key numbers in Illinois
- Counties
- 102
- each with its own page
- People
- 12.7M
- Census, Average 2020–2024
- Typical home
- $263,300
- median value in Illinois
Map and extremes
Where it costs more and less in Illinois
Typical home value by county
- Under $105,000
- $105,000–$126,900
- $126,900–$146,700
- $146,700–$185,500
- $185,500 or more
-
People
- Highest
- 5,182,090
- Cook County
- Lowest
- 3,605
- Hardin County
-
Typical home
- Highest
- $391,400
- DuPage County
- Lowest
- $59,800
- Alexander County
-
Typical rent
- Highest
- $1,781
- Kendall County
- Lowest
- $379
- Hardin County
The full list
Every county in Illinois
Type a name to filter or tap a column to sort. Each county links to its page.
| Cook County | 5,182,090 | $324,500 | $1,435 | $83,498 | $541,287 |
|---|---|---|---|---|---|
| DuPage County | 930,024 | $391,400 | $1,688 | $112,096 | $541,287 |
| Lake County | 714,223 | $345,700 | $1,477 | $110,416 | $541,287 |
| Will County | 701,462 | $319,600 | $1,462 | $109,984 | $541,287 |
| Kane County | 517,255 | $327,000 | $1,453 | $103,163 | $541,287 |
| McHenry County | 312,591 | $308,100 | $1,401 | $104,802 | $541,287 |
| Winnebago County | 283,292 | $164,500 | $1,021 | $65,837 | $541,287 |
| Madison County | 264,238 | $173,000 | $1,024 | $75,793 | $541,287 |
| St. Clair County | 253,694 | $180,300 | $1,090 | $73,854 | $541,287 |
| Champaign County | 208,741 | $211,500 | $1,051 | $63,683 | $541,287 |
| Sangamon County | 194,947 | $176,300 | $983 | $75,357 | $541,287 |
| Peoria County | 179,645 | $158,500 | $993 | $65,108 | $541,287 |
| McLean County | 171,556 | $208,400 | $1,009 | $79,905 | $541,287 |
| Rock Island County | 142,757 | $150,400 | $889 | $67,159 | $541,287 |
| Kendall County | 137,675 | $322,400 | $1,781 | $111,601 | $541,287 |
| Tazewell County | 130,290 | $167,500 | $909 | $77,982 | $541,287 |
| LaSalle County | 108,714 | $161,900 | $928 | $73,045 | $541,287 |
| Kankakee County | 106,635 | $192,600 | $1,097 | $71,281 | $541,287 |
| Macon County | 101,849 | $127,300 | $847 | $62,666 | $541,287 |
| DeKalb County | 100,703 | $243,600 | $1,049 | $70,724 | $541,287 |
| Vermilion County | 72,386 | $97,200 | $838 | $56,877 | $541,287 |
| Williamson County | 66,876 | $156,400 | $930 | $65,604 | $541,287 |
| Adams County | 64,754 | $162,600 | $828 | $66,220 | $541,287 |
| Whiteside County | 54,947 | $127,100 | $856 | $67,500 | $541,287 |
| Boone County | 53,230 | $216,900 | $1,041 | $84,571 | $541,287 |
| Grundy County | 53,219 | $271,700 | $1,177 | $92,235 | $541,287 |
| Jackson County | 53,064 | $137,300 | $782 | $48,763 | $541,287 |
| Ogle County | 51,495 | $189,200 | $936 | $82,132 | $541,287 |
| Knox County | 49,046 | $111,900 | $788 | $57,030 | $541,287 |
| Henry County | 48,643 | $151,600 | $842 | $71,911 | $541,287 |
| Coles County | 46,777 | $127,400 | $780 | $56,478 | $541,287 |
| Macoupin County | 44,350 | $138,200 | $801 | $70,805 | $541,287 |
| Stephenson County | 43,768 | $134,900 | $798 | $64,043 | $541,287 |
| Woodford County | 38,312 | $197,600 | $912 | $91,483 | $541,287 |
| Franklin County | 37,323 | $89,000 | $803 | $56,740 | $541,287 |
| Marion County | 37,000 | $103,000 | $794 | $61,240 | $541,287 |
| Clinton County | 36,954 | $192,400 | $912 | $86,588 | $541,287 |
| Jefferson County | 36,550 | $126,000 | $885 | $63,118 | $541,287 |
| Livingston County | 35,565 | $142,200 | $880 | $73,790 | $541,287 |
| Monroe County | 35,036 | $282,100 | $1,042 | $102,880 | $541,287 |
| Effingham County | 34,522 | $189,500 | $733 | $80,404 | $541,287 |
| Lee County | 33,869 | $154,600 | $894 | $70,292 | $541,287 |
| Christian County | 33,538 | $115,500 | $785 | $62,611 | $541,287 |
| Morgan County | 33,021 | $130,800 | $722 | $66,306 | $541,287 |
| Fulton County | 33,020 | $107,200 | $785 | $60,599 | $541,287 |
| Bureau County | 32,866 | $126,900 | $832 | $69,257 | $541,287 |
| Randolph County | 30,058 | $135,100 | $780 | $68,131 | $541,287 |
| Montgomery County | 27,942 | $112,300 | $723 | $63,620 | $541,287 |
| Logan County | 27,713 | $134,400 | $829 | $66,358 | $541,287 |
| McDonough County | 26,920 | $107,500 | $761 | $52,795 | $541,287 |
| Iroquois County | 26,449 | $137,800 | $799 | $66,255 | $541,287 |
| Saline County | 23,213 | $94,300 | $726 | $53,117 | $541,287 |
| Jo Daviess County | 21,851 | $209,900 | $825 | $73,993 | $541,287 |
| Fayette County | 21,315 | $130,700 | $798 | $60,944 | $541,287 |
| Jersey County | 21,274 | $171,900 | $846 | $80,361 | $541,287 |
| Shelby County | 20,720 | $137,100 | $814 | $72,095 | $541,287 |
| Perry County | 20,639 | $112,600 | $728 | $62,118 | $541,287 |
| Douglas County | 19,751 | $150,400 | $848 | $77,320 | $541,287 |
| Crawford County | 18,511 | $121,100 | $811 | $71,674 | $541,287 |
| Hancock County | 17,281 | $113,800 | $782 | $65,865 | $541,287 |
| Union County | 16,997 | $131,700 | $648 | $55,728 | $541,287 |
| Bond County | 16,716 | $145,700 | $785 | $65,959 | $541,287 |
| Piatt County | 16,695 | $180,600 | $1,046 | $94,811 | $541,287 |
| Edgar County | 16,535 | $97,300 | $775 | $59,941 | $541,287 |
| Warren County | 16,447 | $105,000 | $788 | $67,385 | $541,287 |
| Wayne County | 15,973 | $110,700 | $657 | $55,521 | $541,287 |
| Richland County | 15,598 | $112,000 | $805 | $62,455 | $541,287 |
| Carroll County | 15,576 | $114,500 | $818 | $60,758 | $541,287 |
| Mercer County | 15,495 | $146,700 | $786 | $74,182 | $541,287 |
| De Witt County | 15,373 | $130,300 | $903 | $71,678 | $541,287 |
| Clark County | 15,266 | $132,400 | $861 | $72,927 | $541,287 |
| Lawrence County | 15,031 | $99,100 | $836 | $55,324 | $541,287 |
| Pike County | 14,469 | $101,400 | $676 | $59,777 | $541,287 |
| Moultrie County | 14,424 | $134,000 | $804 | $71,784 | $541,287 |
| Massac County | 13,865 | $121,900 | $756 | $65,116 | $541,287 |
| Washington County | 13,627 | $155,700 | $818 | $78,224 | $541,287 |
| White County | 13,619 | $108,100 | $719 | $54,813 | $541,287 |
| Ford County | 13,406 | $122,000 | $923 | $62,439 | $541,287 |
| Johnson County | 13,376 | $160,500 | $781 | $62,528 | $541,287 |
| Clay County | 13,052 | $97,400 | $735 | $60,417 | $541,287 |
| Cass County | 12,784 | $97,100 | $723 | $68,125 | $541,287 |
| Mason County | 12,745 | $103,400 | $802 | $62,845 | $541,287 |
| Menard County | 12,095 | $185,500 | $885 | $82,176 | $541,287 |
| Greene County | 11,683 | $95,200 | $754 | $62,192 | $541,287 |
| Marshall County | 11,647 | $142,800 | $782 | $71,585 | $541,287 |
| Wabash County | 11,119 | $104,900 | $794 | $57,086 | $541,287 |
| Cumberland County | 10,334 | $126,000 | $772 | $73,327 | $541,287 |
| Jasper County | 9,180 | $125,500 | $793 | $74,755 | $541,287 |
| Hamilton County | 7,916 | $113,700 | $568 | $65,746 | $541,287 |
| Schuyler County | 6,787 | $109,700 | $853 | $65,948 | $541,287 |
| Brown County | 6,322 | $150,300 | $698 | $67,917 | $541,287 |
| Henderson County | 6,193 | $104,400 | $764 | $62,227 | $541,287 |
| Edwards County | 6,075 | $100,000 | $811 | $60,519 | $541,287 |
| Putnam County | 5,601 | $172,700 | $851 | $75,590 | $541,287 |
| Stark County | 5,308 | $104,500 | $735 | $62,878 | $541,287 |
| Pulaski County | 5,015 | $85,100 | $634 | $42,463 | $541,287 |
| Scott County | 4,937 | $96,400 | $689 | $66,705 | $541,287 |
| Alexander County | 4,875 | $59,800 | $656 | $47,043 | $541,287 |
| Gallatin County | 4,819 | $82,900 | $541 | $59,219 | $541,287 |
| Calhoun County | 4,330 | $190,900 | $583 | $93,203 | $541,287 |
| Pope County | 3,739 | $143,800 | $449 | $60,050 | $541,287 |
| Hardin County | 3,605 | $103,800 | $379 | $54,271 | $541,287 |
- Cook $324,500$541,287
- DuPage $391,400$541,287
- Lake $345,700$541,287
- Will $319,600$541,287
- Kane $327,000$541,287
- McHenry $308,100$541,287
- Winnebago $164,500$541,287
- Madison $173,000$541,287
- St. Clair $180,300$541,287
- Champaign $211,500$541,287
- Sangamon $176,300$541,287
- Peoria $158,500$541,287
- McLean $208,400$541,287
- Rock Island $150,400$541,287
- Kendall $322,400$541,287
- Tazewell $167,500$541,287
- LaSalle $161,900$541,287
- Kankakee $192,600$541,287
- Macon $127,300$541,287
- DeKalb $243,600$541,287
- Vermilion $97,200$541,287
- Williamson $156,400$541,287
- Adams $162,600$541,287
- Whiteside $127,100$541,287
- Boone $216,900$541,287
- Grundy $271,700$541,287
- Jackson $137,300$541,287
- Ogle $189,200$541,287
- Knox $111,900$541,287
- Henry $151,600$541,287
- Coles $127,400$541,287
- Macoupin $138,200$541,287
- Stephenson $134,900$541,287
- Woodford $197,600$541,287
- Franklin $89,000$541,287
- Marion $103,000$541,287
- Clinton $192,400$541,287
- Jefferson $126,000$541,287
- Livingston $142,200$541,287
- Monroe $282,100$541,287
- Effingham $189,500$541,287
- Lee $154,600$541,287
- Christian $115,500$541,287
- Morgan $130,800$541,287
- Fulton $107,200$541,287
- Bureau $126,900$541,287
- Randolph $135,100$541,287
- Montgomery $112,300$541,287
- Logan $134,400$541,287
- McDonough $107,500$541,287
- Iroquois $137,800$541,287
- Saline $94,300$541,287
- Jo Daviess $209,900$541,287
- Fayette $130,700$541,287
- Jersey $171,900$541,287
- Shelby $137,100$541,287
- Perry $112,600$541,287
- Douglas $150,400$541,287
- Crawford $121,100$541,287
- Hancock $113,800$541,287
- Union $131,700$541,287
- Bond $145,700$541,287
- Piatt $180,600$541,287
- Edgar $97,300$541,287
- Warren $105,000$541,287
- Wayne $110,700$541,287
- Richland $112,000$541,287
- Carroll $114,500$541,287
- Mercer $146,700$541,287
- De Witt $130,300$541,287
- Clark $132,400$541,287
- Lawrence $99,100$541,287
- Pike $101,400$541,287
- Moultrie $134,000$541,287
- Massac $121,900$541,287
- Washington $155,700$541,287
- White $108,100$541,287
- Ford $122,000$541,287
- Johnson $160,500$541,287
- Clay $97,400$541,287
- Cass $97,100$541,287
- Mason $103,400$541,287
- Menard $185,500$541,287
- Greene $95,200$541,287
- Marshall $142,800$541,287
- Wabash $104,900$541,287
- Cumberland $126,000$541,287
- Jasper $125,500$541,287
- Hamilton $113,700$541,287
- Schuyler $109,700$541,287
- Brown $150,300$541,287
- Henderson $104,400$541,287
- Edwards $100,000$541,287
- Putnam $172,700$541,287
- Stark $104,500$541,287
- Pulaski $85,100$541,287
- Scott $96,400$541,287
- Alexander $59,800$541,287
- Gallatin $82,900$541,287
- Calhoun $190,900$541,287
- Pope $143,800$541,287
- Hardin $103,800$541,287
Census medians; FHA limit for one unit. · American Community Survey · Average 2020–2024 · FHA mortgage limits · 2026 data Source: American Community Survey (ACS) 5-year estimates Average 2020–2024 American Community Survey (ACS) 5-year estimates (external site)
Frequently asked questions
How many counties does Illinois have?
Illinois has 102 counties. The most populous is Cook County (5,182,090 people) and the least populous Hardin County (3,605), per the Census (Average 2020–2024).
Which county in Illinois has the most expensive homes?
By typical value (Average 2020–2024, Census), the most expensive is DuPage County ($391,400) and the least expensive Alexander County ($59,800).
Where is rent highest in Illinois?
The highest typical rent is in Kendall County ($1,781 a month) and the lowest in Hardin County ($379), per the Census (Average 2020–2024).
Which county in Illinois has the highest FHA limit?
In 2026 data, every county in Illinois has the same FHA limit for one unit: $541,287.