Water quality for ZIP code 52237
ZIP 52237 covers Hopkinton in Delaware County, Iowa, one of 9 ZIP codes in the county. 28 active public water systems serve the county; 7 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Delaware County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Penn Center INC Delhi |
89 | 0 | 7.3 mi | |
| Delhi Water Supply Delhi |
420 | 0 | 7.3 mi | |
| Delaware Municipal Water Supply Delaware |
142 | 0 | 10.3 mi | |
| Earlville Muni Water Supply Earlville |
724 | 0 | 11.2 mi | |
| Ryan Water Supply Ryan |
350 | 1 | 12.1 mi | |
| Manchester Water Supply Manchester |
5,077 | 0 | 14.4 mi | |
| Colesburg Water Supply Colesburg |
386 | 0 | 20.5 mi |
Non-community systems in Delaware County (20: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rocky Nook Association, Inc. Delhi |
50 | 0 | 0 | |
|
Lost Beach Resort Delhi |
50 | 1 | 0 | |
|
Hartwick Point Well Delhi |
120 | 0 | 0 | |
|
Clair-View Acres Waterworks LLC Delhi |
56 | 0 | 0 | |
|
Turtle Creek Park Delaware C.c.b. Manchester |
27 | 0 | 0 | |
|
Delhi Lakeview Estates Delhi |
35 | 2 | 1 | |
|
Eip Manufacturing, LLC Earlville |
60 | 0 | 0 | |
|
Tri-State Raceway Earlville |
27 | 3 | 1 | |
|
Dollar General (earlville) Earlville |
40 | 2 | 1 | |
|
Baileys Ford Park Delaware Ccb Manchester |
55 | 0 | 0 | |
|
Big River United Energy LLC Dyersville |
50 | 0 | 0 | |
|
Manchester Fish Hatchery Manchester |
43 | 0 | 0 | |
|
Lazy T Campground Manchester |
25 | 2 | 0 | |
|
Pin Oak Pub & Links Manchester |
100 | 4 | 1 | |
|
Big House Petersburg |
27 | 0 | 0 | |
|
Hart Ridge Golf Course Manchester |
167 | 0 | 0 | |
|
R Place Masonville |
25 | 0 | 0 | |
|
Twin Bridges Park Delaware C.c.b. Manchester |
61 | 0 | 0 | |
|
Backbone State Park Dundee |
508 | 0 | 0 | |
|
Backbone Golf and Country Club Strawberry Point |
64 | 0 | 0 |
About this data
Water systems are matched to Delaware 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
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 Iowa 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.