Water quality for ZIP code 61436
ZIP 61436 covers Gilson in Knox County, Illinois, one of 17 ZIP codes in the county. 45 active public water systems serve the county; 25 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Knox County
16 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Maquon Maquon |
218 | 3 | 5.3 mi | |
| East Galesburg East Galesburg |
860 | 2 | 7.0 mi | |
| Aqua Illinois-Oak Run |
1,885 | 0 | 8.5 mi | |
| Abingdon Abingdon |
3,275 | 1 | 10.1 mi | |
| Galesburg Galesburg |
31,620 | 0 | 10.4 mi | |
| Williamsfield Williamsfield |
647 | 2 | 11.7 mi | |
| Wataga Wataga |
965 | 5 | 11.7 mi | |
| Yates City Yates City |
828 | 1 | 12.3 mi | |
| Windwood Water System, Inc. |
185 | 1 | 12.9 mi | |
| Henderson Henderson |
375 | 5 | 13.1 mi | |
| ST Augustine St Augustine |
119 | 0 | 13.6 mi | |
| Victoria Victoria |
268 | 2 | 13.7 mi | |
| Oneida Oneida |
644 | 1 | 14.7 mi | |
| Altona Altona |
483 | 1 | 17.9 mi | |
| Rio Rio |
265 | 0 | 19.6 mi | |
| IL American-Cedar Water |
172 | 0 | — |
Non-community systems in Knox County (28: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Woodland Hills Camping & Recreation |
25 | 4 | 2 | |
|
Galesburg East KOA |
25 | 0 | 0 | |
|
Camp Akita/a Frame Well |
100 | 3 | 1 | |
|
Lake Bracken CC Clubhouse |
120 | 0 | 0 | |
|
Lake Bracken C C Pool Well |
100 | 0 | 0 | |
|
Lake Bracken CC Golf Course Bath Room |
25 | 0 | 0 | |
|
Happy Hollow Lake Ass C/o H SM |
25 | 4 | 1 | |
|
Community Bible Church |
60 | 0 | 0 | |
|
Gamber Cove |
100 | 2 | 1 | |
|
Oak Run Camping Area |
100 | 3 | 0 | |
|
Double Tree Hills |
25 | 3 | 2 | |
|
Faith Bible Camp |
50 | 3 | 1 | |
|
Stonefort Campground |
25 | 4 | 1 | |
|
Knox CO Sportsmens Club |
25 | 1 | 1 | |
|
Twisted Sisters Bar and Grill |
30 | 0 | 0 | |
|
Lake Calhoun Association #5 |
25 | 0 | 0 | |
|
Walmart Supercenter #775 |
25 | 0 | 0 | |
|
I74 Spoon River Rest Area |
2,356 | 0 | 0 | |
|
Camp Akita Lodge Well |
134 | 1 | 0 | |
|
Dahinda UM Church |
100 | 0 | 0 | |
|
Camp Akita Bathhouse Well |
60 | 1 | 0 | |
|
Camp Akita Girls Village |
36 | 3 | 1 | |
|
Cactus Country |
30 | 0 | 0 | |
|
Cabin Fever Campground |
26 | 4 | 3 | |
|
HI LO Grocery Abingdon |
25 | 0 | 0 | |
|
HI LO Market Galesburg |
25 | 0 | 0 | |
|
Kooler Ice Victoria |
25 | 0 | 0 | |
|
Quick Stop |
25 | 0 | 0 |
About this data
Water systems are matched to Knox County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Illinois records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.