Water quality for ZIP code 66780
ZIP 66780 covers Walnut in Crawford County, Kansas, one of 13 ZIP codes in the county. 18 active public water systems serve the county; 12 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Crawford County
17 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Crawford CO Rwd 1c Girard |
1,915 | 5 | 13.3 mi | |
| Girard, City of Girard |
2,497 | 1 | 14.0 mi | |
| Crawford CO Rwd 6 Girard |
823 | 0 | 14.1 mi | |
| McCune, City of Mccune |
372 | 2 | 18.6 mi | |
| Crawford CO Rwd 2 Arma |
1,460 | 0 | 19.0 mi | |
| Crawford CO Rwd 4 Girard |
1,580 | 0 | 19.3 mi | |
| Arma, City of Arma |
1,406 | 1 | 20.3 mi | |
| Crawford CO Rwd 3 Arma |
250 | 3 | 21.9 mi | |
| Frontenac, City of Frontenac |
3,395 | 0 | 22.7 mi | |
| Cherokee, City of Cherokee |
591 | 5 | 23.2 mi | |
| Arcadia, City of Arcadia |
257 | 3 | 23.7 mi | |
| Crawford CO Rwd 1 Frontenac |
430 | 1 | 23.8 mi | |
| Chicopee Rural Water District Pittsburg |
425 | 2 | 23.9 mi | |
| Mulberry, City of Mulberry |
411 | 0 | 24.2 mi | |
| Pittsburg, City of Pittsburg |
20,738 | 1 | 24.3 mi | |
| Public Wholesale Wsd 11 Girard |
1 | 0 | 25.6 mi | |
| Crawford CO Rwd 5 Pittsburg |
2,200 | 2 | 28.2 mi |
About this data
Water systems are matched to Crawford 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 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.