State · code 17
Illinois102 counties and county equivalents
Pick a county on the map or in the list. Each page says what the public maps cover, where the county's lines came from, and whom to ask about a lot.
Map
Counties of Illinois
Every shape is a link. Small counties are easier to find in the list below.
A to Z
All 102 in Illinois
81 of 102 have a public parcel map. Population from the 2020 Census; "updated" is when we last checked the county's parcel map.
| County | Population | Parcels mapped | Parcel map | Updated |
|---|---|---|---|---|
| Adams County | 65,737 | 38,835 | Good enough | |
| Alexander County | 5,240 | 8,760 | Fallback | |
| Bond County | 16,725 | 14,489 | Good enough | |
| Boone County | 53,448 | 24,319 | Good enough | |
| Brown County | 6,244 | 5,616 | Good enough | |
| Bureau County | 33,244 | 27,635 | Fallback | |
| Calhoun County | 4,437 | — | Missing | |
| Carroll County | 15,702 | — | Missing | |
| Cass County | 13,042 | — | Missing | |
| Champaign County | 205,865 | 79,652 | Fallback | |
| Christian County | 34,032 | 24,343 | Good enough | |
| Clark County | 15,455 | 14,147 | Good enough | |
| Clay County | 13,288 | 15,621 | Good enough | |
| Clinton County | 36,899 | 27,179 | Official | |
| Coles County | 46,863 | 28,674 | Good enough | |
| Cook County | 5,275,541 | 1,432,483 | Good enough | |
| Crawford County | 18,679 | — | Missing | |
| Cumberland County | 10,450 | 13,758 | Good enough | |
| De Witt County | 15,516 | 11,146 | Official | |
| DeKalb County | 100,420 | 45,411 | Good enough | |
| Douglas County | 19,740 | 15,498 | Good enough | |
| DuPage County | 932,877 | 336,803 | Good enough | |
| Edgar County | 16,866 | 18,098 | Good enough | |
| Edwards County | 6,245 | 7,576 | Good enough | |
| Effingham County | 34,668 | 23,680 | Good enough | |
| Fayette County | 21,488 | 21,869 | Good enough | |
| Ford County | 13,534 | 10,691 | Good enough | |
| Franklin County | 37,804 | 31,478 | Good enough | |
| Fulton County | 33,609 | 27,907 | Good enough | |
| Gallatin County | 4,946 | — | Missing | |
| Greene County | 11,985 | 12,054 | Good enough | |
| Grundy County | 52,533 | 27,032 | Good enough | |
| Hamilton County | 7,993 | 10,507 | Good enough | |
| Hancock County | 17,620 | 21,182 | Good enough | |
| Hardin County | 3,649 | — | Missing | |
| Henderson County | 6,387 | 8,105 | Good enough | |
| Henry County | 49,284 | 31,932 | Good enough | |
| Iroquois County | 27,077 | 28,244 | Good enough | |
| Jackson County | 52,974 | 34,252 | Good enough | |
| Jasper County | 9,287 | 15,858 | Good enough | |
| Jefferson County | 37,113 | 30,892 | Official | |
| Jersey County | 21,512 | 14,795 | Good enough | |
| Jo Daviess County | 22,035 | — | Missing | |
| Johnson County | 13,308 | 12,995 | Good enough | |
| Kane County | 516,522 | 187,438 | Good enough | |
| Kankakee County | 107,502 | 54,929 | Good enough | |
| Kendall County | 131,869 | 58,839 | Good enough | |
| Knox County | 49,967 | 33,239 | Good enough | |
| Lake County | 714,342 | 278,985 | Good enough | |
| LaSalle County | 109,658 | 72,236 | Good enough | |
| Lawrence County | 15,280 | 14,914 | Good enough | |
| Lee County | 34,145 | 29,034 | Good enough | |
| Livingston County | 35,815 | — | Missing | |
| Logan County | 27,987 | 18,976 | Good enough | |
| Macon County | 103,998 | 57,096 | Good enough | |
| Macoupin County | 44,967 | 38,000 | Good enough | |
| Madison County | 265,859 | 136,767 | Good enough | |
| Marion County | 37,729 | 33,867 | Good enough | |
| Marshall County | 11,742 | 13,245 | Good enough | |
| Mason County | 13,086 | 16,643 | Official | |
| Massac County | 14,169 | 10,827 | Good enough | |
| McDonough County | 27,238 | 18,353 | Good enough | |
| McHenry County | 310,229 | 150,153 | Good enough | |
| McLean County | 170,954 | 68,938 | Good enough | |
| Menard County | 12,297 | 11,970 | Good enough | |
| Mercer County | 15,699 | 13,979 | Fallback | |
| Monroe County | 34,962 | 19,623 | Good enough | |
| Montgomery County | 28,288 | — | Missing | |
| Morgan County | 32,915 | 22,489 | Good enough | |
| Moultrie County | 14,526 | 11,373 | Official | |
| Ogle County | 51,788 | — | Missing | |
| Peoria County | 181,830 | 90,344 | Good enough | |
| Perry County | 20,945 | — | Missing | |
| Piatt County | 16,673 | 4,501 | Good enough | |
| Pike County | 14,739 | — | Missing | |
| Pope County | 3,763 | — | Missing | |
| Pulaski County | 5,193 | — | Missing | |
| Putnam County | 5,637 | 7,538 | Good enough | |
| Randolph County | 30,163 | 26,113 | Good enough | |
| Richland County | 15,813 | — | Missing | |
| Rock Island County | 144,672 | 65,946 | Good enough | |
| Saline County | 23,768 | — | Missing | |
| Sangamon County | 196,343 | 105,623 | Good enough | |
| Schuyler County | 6,902 | 9,109 | Good enough | |
| Scott County | 4,949 | — | Missing | |
| Shelby County | 20,990 | 21,355 | Good enough | |
| St. Clair County | 257,400 | 147,941 | Good enough | |
| Stark County | 5,400 | 6,089 | Good enough | |
| Stephenson County | 44,630 | — | Missing | |
| Tazewell County | 131,343 | 68,085 | Good enough | |
| Union County | 17,244 | 12,741 | Fallback | |
| Vermilion County | 74,188 | 55,762 | Good enough | |
| Wabash County | 11,361 | — | Missing | |
| Warren County | 16,835 | 14,136 | Good enough | |
| Washington County | 13,761 | — | Missing | |
| Wayne County | 16,179 | 20,544 | Official | |
| White County | 13,877 | 20,950 | Official | |
| Whiteside County | 55,691 | 36,480 | Good enough | |
| Will County | 696,355 | 282,293 | Good enough | |
| Williamson County | 67,153 | — | Missing | |
| Winnebago County | 285,350 | 127,957 | Good enough | |
| Woodford County | 38,467 | 26,030 | Good enough |
Your lot on Illinois's maps
Open your county on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.