Tapcensus

Water quality for ZIP code 56120

ZIP 56120 covers Butterfield and Darfur in Watonwan County, Minnesota, one of 6 ZIP codes in the county. 13 active public water systems serve the county; 4 had an EPA violation in the past three years.

Most likely your provider

Butterfield MN1830001 · Community water system · Ground water purchased
Serves 586 people Rules violated, past 3 years 0 Last sanitary survey Jun 15, 2026 Distance under 0.1 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Watonwan County

7 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Darfur
87 0 6.5 mi
Odin
109 1 7.0 mi
Saint James
4,611 0 8.4 mi
Ormsby
129 1 9.8 mi
Lasalle
90 2 13.4 mi
Lewisville
225 0 18.0 mi
Madelia
2,319 1 19.7 mi
Non-community systems in Watonwan County (5: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Sands Country Cove Campground
25 0 0
Watonwan Rest Area Mndot
500 0 0
St. James Golf Course/river's Edge Grill
100 0 0
Watonwan County Eagles Nest Park
25 0 0
Crystal Valley-Madelia Hwy 60
30 0 0
About this data

Water systems are matched to Watonwan 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 Minnesota 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.