Water quality for ZIP code 57745
ZIP 57745 covers Hill City in Pennington County, South Dakota, one of 9 ZIP codes in the county. 158 active public water systems serve the county; 52 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Pennington County
66 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Hill City Hill City |
872 | 0 | 11.9 mi | |
| Thrall Mtn. Property Owners Associat Black Hawk, Rapid City |
70 | 0 | 15.3 mi | |
| Pine Cliff Estates Black Hawk, Rapid City |
180 | 0 | 17.3 mi | |
| Siphon Hill Water Association Rapid City |
68 | 0 | 17.5 mi | |
| Norris Peak Water Users Assoc Black Hawk, Rapid City |
30 | 0 | 18.2 mi | |
| Boxelder High Country Association Rapid City |
45 | 1 | 18.7 mi | |
| Hisega Meadows Water INC Rapid City |
493 | 0 | 19.3 mi | |
| Canyon Springs Water and Sewer Distr Black Hawk, Rapid City |
163 | 0 | 19.7 mi | |
| Keystone Keystone |
349 | 0 | 19.8 mi | |
| Sheridan Lake Highlands, Inc. Piedmont, Rapid City |
85 | 0 | 20.3 mi | |
| High Sheridan Ranch Black Hawk, Rapid City |
38 | 0 | 21.0 mi | |
| Cavalry Trails Homeowner Association Piedmont, Rapid City |
44 | 0 | 21.2 mi | |
| High Meadows Ranchettes Black Hawk, Rapid City |
60 | 0 | 21.5 mi | |
| South Canyon Country Estates Rapid City |
420 | 0 | 21.6 mi | |
| Golden Hills Homes Rapid City |
47 | 0 | 21.6 mi | |
| Whispering Pines Water Association Rapid City |
48 | 0 | 21.9 mi | |
| Strato Rim Estates Water Company Rapid City |
170 | 0 | 22.4 mi | |
| Spring Canyon Water Company Piedmont, Rapid City |
92 | 0 | 22.7 mi | |
| Oaks Water Users Association New Underwood |
180 | 0 | 22.7 mi | |
| Rimrock Ridge Water Association Rapid City |
35 | 0 | 22.8 mi | |
| Ponderosa Park Rapid City |
50 | 0 | 22.9 mi | |
| Westberry Trails Water Users Assoc Piedmont, Rapid City |
155 | 0 | 23.0 mi | |
| Ponderosa Ridge Rapid City |
98 | 1 | 23.0 mi | |
| Colonial Pine Hills Sanitary Distric Rapid City |
1,200 | 0 | 23.7 mi | |
| Chapel Lane Water Company Rapid City |
1,200 | 0 | 24.0 mi |
Non-community systems in Pennington County (91: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Usfs-Bhnf Dutchman Campground Black Hawk, Custer, Overland Park |
99 | 0 | 0 | |
|
Mountain Meadow Resort Hill City |
223 | 0 | 0 | |
|
Moonshine Gulch Saloon Hill City |
25 | 1 | 0 | |
|
Ray Smith Hoa-Rs East Well Black Hawk, Hill City |
115 | 0 | 0 | |
|
High Country-Ranch West Well Black Hawk, Hill City |
58 | 1 | 0 | |
|
Medicine Mountain Scout Camp Rapid City |
250 | 0 | 0 | |
|
Timber Haven Cabins Keystone |
25 | 1 | 0 | |
|
Black Hills Cabins and Motel @ Quail Hill City |
56 | 1 | 1 | |
|
Silver Dollar Saloon Hill City |
50 | 2 | 1 | |
|
Mountain View Lodge Hill City |
34 | 2 | 1 | |
|
Hill City Visitor Center Hill City |
38 | 0 | 0 | |
|
Larsson's Crooked Creek Cg-New Black Hawk, Hill City |
54 | 1 | 0 | |
|
Larsson's Crooked Creek Cg-North Wel Black Hawk, Hill City |
124 | 1 | 1 | |
|
Larsson's Crooked Creek Cg-South Wel Black Hawk, Hill City |
52 | 1 | 1 | |
|
Spring Creek Inn Hill City |
72 | 2 | 0 | |
|
Rafter-J Bar Ranch Hill City |
374 | 0 | 0 | |
|
Usfs-Bhnf Oreville Campground Black Hawk, Custer, Overland Park |
40 | 0 | 0 | |
|
Robin's Roost Cabins Hill City |
34 | 2 | 1 | |
|
Prairie Dog Taproom Hill City |
75 | 3 | 1 | |
|
Firehouse Campground Hill City, Rapid City |
45 | 0 | 0 | |
|
Sawtooth Campground and Cabins Hill City |
45 | 1 | 0 | |
|
Addie Camp Water and Septic Piedmont |
900 | 0 | 0 | |
|
Whispering Pines Campground Rapid City |
57 | 0 | 0 | |
|
YMCA of the Black Hills Rapid City |
250 | 1 | 1 | |
|
Pactola Pines Store Custer, Rapid City |
500 | 1 | 0 | |
|
Pactola Water Association Black Hawk, Hill City |
25 | 0 | 0 | |
|
Three Forks Campground and RV Park Hill City |
122 | 2 | 2 | |
|
Creekside LLC Hill City |
235 | 2 | 0 | |
|
Country Store at Three Forks Black Hawk, Hill City, Rapid City |
1,000 | 0 | 0 | |
|
Usfs-Bhnf Pactola Campground Black Hawk, Custer, Overland Park |
166 | 0 | 0 | |
|
KOA Hill City/needles Highway Black Hawk, Custer |
146 | 1 | 1 | |
|
Freedom Ridge Cabins Hill City |
29 | 0 | 0 | |
|
NO Bad Days Campground Hill City |
60 | 2 | 0 | |
|
Palmer Gulch Lodge/mt Rushmore KOA Black Hawk, Hill City |
850 | 0 | 0 | |
|
Black Elk Resort Rapid City |
38 | 0 | 0 | |
|
Horse Creek Resort-Lower Wells Rapid City |
90 | 0 | 0 | |
|
Horse Creek Resort-Log Cabin Well Rapid City |
35 | 0 | 0 | |
|
Usfs-Bhnf Woodsy/smokey CG Black Hawk, Custer, Overland Park |
145 | 0 | 0 | |
|
Usfs-Bhnf Rocky Campground Black Hawk, Custer, Overland Park |
41 | 0 | 0 | |
|
Usfs-Bhnf Chipper/thumper CG Black Hawk, Custer, Overland Park |
56 | 0 | 0 | |
|
Placerville Camp Rapid City |
84 | 1 | 1 | |
|
Blue Wing Recreation Area Hill City, Rapid City |
200 | 0 | 0 | |
|
Usfs-Bhnf Horsethief Lake CG Black Hawk, Custer, Overland Park |
79 | 0 | 0 | |
|
Rustic Ridge Guest Cabins Keystone |
25 | 0 | 0 | |
|
Rimrock Tavern Lyndon Bolt Boxelder |
35 | 3 | 1 | |
|
Camp Judson Keystone, Sioux Falls |
100 | 2 | 1 | |
|
Salvation Army Camp Rapid City |
25 | 0 | 0 | |
|
American Pines Cabins Keystone |
40 | 3 | 0 | |
|
Kemp's Kamp West Keystone |
68 | 0 | 0 | |
|
Kemp's Kamp Upper Keystone |
30 | 0 | 0 |
About this data
Water systems are matched to Pennington 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 or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision 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 South Dakota 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.