County GIS · Parcel viewers · October 18, 2026
Illinois County GIS Websites: Parcel Viewers by County
Which parcel map software each Illinois county uses (97 of 102 verified), how to search the common viewers, and a link to every official map.
Looking for Illinois county GIS websites? Illinois has 102 counties, and their official parcel maps do not all run on the same software. Knowing which viewer a county uses tells you what the search box expects and where the parcel report is.
If you look up land in more than one Illinois county, you will notice the parcel maps don't match. That is because each office chooses its own software. Below, all 102 Illinois entries in our directory are listed with the viewer each one uses, plus tips for the most common types.
Illinois at a glance
- Entries in the directory: 102
- With a verified public parcel viewer: 97
- Still waiting on a verified link: 5 (Greene County, Hardin County, Johnson County, Pope County, Union County)
- county web map: 25
- ArcGIS Experience Builder: 17
- BHA Maps: 13
- ArcGIS Web AppBuilder: 12
- Beacon (Schneider Geospatial): 8
- WTH GIS: 7
- ArcGIS: 6
- ArcGIS Map Viewer: 4
- myGISonline: 4
- CAMAvision Maps: 1
The most populous counties
Most lookups happen in the largest places, so here is what their maps run on.
| Name | 2023 population | Viewer |
|---|---|---|
| Cook County | 5,087,072 | county web map |
| DuPage County | 921,213 | county web map |
| Lake County | 708,760 | county web map |
| Will County | 700,728 | county web map |
| Kane County | 514,982 | county web map |
How to search the most common viewers in Illinois
county web map (25 entries, e.g. Calhoun County, Carroll County, Champaign County)
- Open the official map link from the county's page; it opens in a new tab.
- Accept any disclaimer, then look for a search box that takes street addresses, owners or parcel IDs.
- Zoom in and click a parcel to see its details.
- Use the map's layer controls to add aerials or other layers if they're offered.
ArcGIS Experience Builder (17 entries, e.g. Bureau County, Clay County, Cumberland County)
- Open the link. This viewer is an ArcGIS Experience Builder app, so its layout is custom to the publisher.
- Look for a search box or search widget and type in a street address or parcel ID.
- Click a parcel to see its details in a pop-up or side panel.
- Check the toolbar for a layer list or basemap switcher if you want aerials or other layers.
BHA Maps (13 entries, e.g. Christian County, Edgar County, Edwards County)
- Find the search option and look up a property, or zoom in on the map.
- Click a lot to see its details.
- Check the toolbar for layers, measuring and printing.
Every Illinois entry and its viewer
| Name | Seat | 2023 population | Official viewer type |
|---|---|---|---|
| Adams County | Quincy | 64,441 | ArcGIS Map Viewer |
| Alexander County | Cairo | 4,695 | ArcGIS Map Viewer |
| Bond County | Greenville | 16,450 | ArcGIS Web AppBuilder |
| Boone County | Belvidere | 53,202 | ArcGIS Map Viewer |
| Brown County | Mount Sterling | 6,294 | myGISonline |
| Bureau County | Princeton | 32,729 | ArcGIS Experience Builder |
| Calhoun County | Hardin | 4,317 | county web map |
| Carroll County | Mount Carroll | 15,526 | county web map |
| Cass County | Virginia | 12,596 | Beacon (Schneider Geospatial) |
| Champaign County | Urbana | 205,644 | county web map |
| Christian County | Taylorville | 33,228 | BHA Maps |
| Clark County | Marshall | 15,088 | Beacon (Schneider Geospatial) |
| Clay County | Louisville | 12,999 | ArcGIS Experience Builder |
| Clinton County | Carlyle | 36,785 | ArcGIS |
| Coles County | Charleston | 46,060 | ArcGIS Web AppBuilder |
| Cook County | Chicago | 5,087,072 | county web map |
| Crawford County | Robinson | 18,300 | Beacon (Schneider Geospatial) |
| Cumberland County | Toledo | 10,261 | ArcGIS Experience Builder |
| De Witt County | Clinton | 15,365 | ArcGIS Experience Builder |
| DeKalb County | Sycamore | 100,288 | county web map |
| Douglas County | Tuscola | 19,629 | ArcGIS Web AppBuilder |
| DuPage County | Wheaton | 921,213 | county web map |
| Edgar County | Paris | 16,334 | BHA Maps |
| Edwards County | Albion | 5,968 | BHA Maps |
| Effingham County | Effingham | 34,331 | ArcGIS Experience Builder |
| Fayette County | Vandalia | 21,164 | ArcGIS Experience Builder |
| Ford County | Paxton | 13,250 | BHA Maps |
| Franklin County | Benton | 37,138 | myGISonline |
| Fulton County | Lewistown | 32,541 | ArcGIS Web AppBuilder |
| Gallatin County | Shawneetown | 4,670 | WTH GIS |
| Greene County | Carrollton | 11,543 | not listed yet |
| Grundy County | Morris | 53,578 | county web map |
| Hamilton County | McLeansboro | 7,911 | ArcGIS Experience Builder |
| Hancock County | Carthage | 17,186 | ArcGIS Experience Builder |
| Hardin County | Elizabethtown | 3,569 | not listed yet |
| Henderson County | Oquawka | 6,088 | county web map |
| Henry County | Cambridge | 48,448 | WTH GIS |
| Iroquois County | Watseka | 26,136 | BHA Maps |
| Jackson County | Murphysboro | 52,141 | BHA Maps |
| Jasper County | Newton | 9,144 | BHA Maps |
| Jefferson County | Mount Vernon | 36,320 | ArcGIS |
| Jersey County | Jerseyville | 21,091 | ArcGIS Experience Builder |
| Jo Daviess County | Galena | 21,756 | county web map |
| Johnson County | Vienna | 13,326 | not listed yet |
| Kane County | Geneva | 514,982 | county web map |
| Kankakee County | Kankakee | 105,940 | ArcGIS Experience Builder |
| Kendall County | Yorkville | 139,976 | county web map |
| Knox County | Galesburg | 48,411 | ArcGIS Web AppBuilder |
| LaSalle County | Ottawa | 108,309 | county web map |
| Lake County | Waukegan | 708,760 | county web map |
| Lawrence County | Lawrenceville | 14,813 | BHA Maps |
| Lee County | Dixon | 33,654 | county web map |
| Livingston County | Pontiac | 35,320 | CAMAvision Maps |
| Logan County | Lincoln | 27,590 | ArcGIS Experience Builder |
| Macon County | Decatur | 100,591 | ArcGIS Web AppBuilder |
| Macoupin County | Carlinville | 44,018 | BHA Maps |
| Madison County | Edwardsville | 262,752 | county web map |
| Marion County | Salem | 36,673 | ArcGIS Web AppBuilder |
| Marshall County | Lacon | 11,683 | myGISonline |
| Mason County | Havana | 12,523 | WTH GIS |
| Massac County | Metropolis | 13,661 | BHA Maps |
| McDonough County | Macomb | 26,839 | WTH GIS |
| McHenry County | Woodstock | 312,800 | county web map |
| McLean County | Bloomington | 170,441 | ArcGIS Experience Builder |
| Menard County | Petersburg | 11,954 | Beacon (Schneider Geospatial) |
| Mercer County | Aledo | 15,487 | myGISonline |
| Monroe County | Waterloo | 34,957 | ArcGIS Web AppBuilder |
| Montgomery County | Hillsboro | 27,663 | Beacon (Schneider Geospatial) |
| Morgan County | Jacksonville | 32,140 | ArcGIS |
| Moultrie County | Sullivan | 14,342 | ArcGIS Experience Builder |
| Ogle County | Oregon | 51,265 | Beacon (Schneider Geospatial) |
| Peoria County | Peoria | 177,513 | county web map |
| Perry County | Pinckneyville | 20,503 | Beacon (Schneider Geospatial) |
| Piatt County | Monticello | 16,714 | county web map |
| Pike County | Pittsfield | 14,342 | WTH GIS |
| Pope County | Golconda | 3,707 | not listed yet |
| Pulaski County | Mound City | 4,911 | ArcGIS Web AppBuilder |
| Putnam County | Hennepin | 5,561 | WTH GIS |
| Randolph County | Chester | 29,815 | ArcGIS Web AppBuilder |
| Richland County | Olney | 15,488 | WTH GIS |
| Rock Island County | Rock Island | 141,236 | ArcGIS Map Viewer |
| Saline County | Harrisburg | 22,873 | county web map |
| Sangamon County | Springfield | 193,491 | county web map |
| Schuyler County | Rushville | 6,733 | ArcGIS |
| Scott County | Winchester | 4,710 | county web map |
| Shelby County | Shelbyville | 20,568 | BHA Maps |
| St. Clair County | Belleville | 251,018 | county web map |
| Stark County | Toulon | 5,218 | ArcGIS Web AppBuilder |
| Stephenson County | Freeport | 43,105 | county web map |
| Tazewell County | Pekin | 129,541 | ArcGIS Experience Builder |
| Union County | Jonesboro | 16,667 | not listed yet |
| Vermilion County | Danville | 71,652 | BHA Maps |
| Wabash County | Mount Carmel | 10,942 | BHA Maps |
| Warren County | Monmouth | 16,185 | ArcGIS Web AppBuilder |
| Washington County | Nashville | 13,536 | ArcGIS |
| Wayne County | Fairfield | 15,761 | ArcGIS |
| White County | Carmi | 13,401 | ArcGIS Experience Builder |
| Whiteside County | Morrison | 54,498 | ArcGIS Experience Builder |
| Will County | Joliet | 700,728 | county web map |
| Williamson County | Marion | 66,706 | Beacon (Schneider Geospatial) |
| Winnebago County | Rockford | 280,922 | county web map |
| Woodford County | Eureka | 38,285 | ArcGIS Experience Builder |
Before you rely on what you find
Online parcel lines are drawn for tax mapping, not surveys, so they can sit a few feet off the real boundary. For anything legal, such as a fence, a sale or a dispute, use the recorded deed and a licensed surveyor. To check flood zones, soils or wetlands for a spot you found, open it on the Platbookmapper Land Map, which pulls FEMA, USDA and U.S. Fish & Wildlife layers.
See also: Illinois on Platbookmapper.
Related guides
Sources
- Platbookmapper county GIS directory (the live data file behind our county pages, pulled October 18, 2026). Viewer types are read from each official map's web address.
- U.S. Census Bureau, Population Estimates Program, county totals, Vintage 2023 (July 1, 2023 estimates)
- County seats: Wikidata (county seat property), cross-checked against Census place names.