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Employer directory · South Dakota

Public water systems in South Dakota

31 public water systems in South Dakota, 43rd among the states. Community drinking-water systems owned by a local, state or federal government and serving 3,301 people or more, from EPA's Safe Drinking Water Information System. Private and tribal systems are not included.

Public water systemPopulation served
SIOUX FALLS216,462
RAPID CITY72,009
ABERDEEN27,989
BROOKINGS MUNICIPAL UTILITIES23,377
WATERTOWN MUNICIPAL UTILITIES23,230
MITCHELL15,651
YANKTON15,411
HURON14,263
PIERRE14,091
BOX ELDER14,000
SPEARFISH13,803
BY WATER DISTRICT13,320
VERMILLION11,695
RAPID VALLEY SANITARY DISTRICT11,408
BRANDON11,048
HARRISBURG10,297
ELLSWORTH AFB9,100
TEA7,381
STURGIS7,020
RANDALL COMMUNITY WATER DISTRICT6,248
MADISON6,191
BELLE FOURCHE5,617
TRIPP COUNTY WATER USER DISTRICT4,860
BLACK HAWK WATER USER DISTRICT4,500
TM RURAL WATER DISTRICT4,250
EAGLE BUTTE4,000
DAKOTA DUNES CID3,700
DELL RAPIDS3,633
MILBANK3,544
HARTFORD3,396
HOT SPRINGS3,395

Largest first by population served, as each employer reports it to its federal registry.

Source: U.S. Environmental Protection Agency, Safe Drinking Water Information System (SDWIS/Fed), community water systems. Data captured October 2, 2026.

Jobs at public water systems

Water / Wastewater Treatment Operator

More public employers

Other employers in South Dakota

Fire departmentsTransit agenciesSchool districtsPolice departmentsSheriff's officesCampus police departmentsCommunity collegesPublic universitiesPublic librariesPublic power utilities

Public water systems in other states

Texas · 1,133California · 523Illinois · 408Alabama · 294Florida · 286Michigan · 284Tennessee · 276New York · 266Pennsylvania · 259Massachusetts · 254Ohio · 243Georgia · 242North Carolina · 237Washington · 211New Jersey · 205Missouri · 200Kentucky · 190Louisiana · 190Minnesota · 185Wisconsin · 185Indiana · 176Colorado · 167Arkansas · 157South Carolina · 143Oklahoma · 142Virginia · 142Utah · 116Iowa · 112Oregon · 111Mississippi · 107Kansas · 88West Virginia · 82Maryland · 69Arizona · 63New Mexico · 53Idaho · 43Nebraska · 43New Hampshire · 38Hawaii · 34Montana · 32Vermont · 32Maine · 31Connecticut · 30Nevada · 28Wyoming · 28Rhode Island · 26Delaware · 20North Dakota · 18Alaska · 16District of Columbia · 3

All public water systems in the U.S. · South Dakota government jobs