Water quality for ZIP code 66251
ZIP 66251 covers Overland Park in Johnson County, Kansas, one of 32 ZIP codes in the county. 8 active public water systems serve the county; 3 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Johnson County
6 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Olathe, City of Olathe |
143,014 | 1 | |
| Gardner, City of Gardner |
23,942 | 0 | |
| Johnson CO Rwd 7 Gardner |
6,457 | 0 | |
| Desoto, City of Desoto |
4,645 | 3 | |
| Edgerton, City of Edgerton |
1,741 | 0 | |
| Clearview City, City of Clearview City |
450 | 1 |
Non-community systems in Johnson County (1: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
New Century Air Center New Century |
500 | 0 | 0 |
About this data
Water systems are matched to Johnson County, the county this ZIP code lies in, largest 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.
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 Kansas 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.