Public Power Utilities in South Dakota: Full List (37)

Public power utility	Retail electric customers
Watertown Municipal Utilities	14,308
City of Brookings	12,309
City of Pierre	7,327
City of Vermillion	5,034
City of Madison	3,322
City of Sioux Falls	2,936
Winner Municipal Utility	1,885
City of Flandreau	1,415
City of Fort Pierre	1,414
City of Volga	1,266
City of Beresford	1,248
City of Elk Point	1,045
City of Miller	950
City of Groton	757
City of Parker	674
City of Tyndall	646
City of Howard	621
City of Arlington	616
City of Wessington Springs	610
City of Aurora	529
City of Onida	483
City of Plankinton	475
City of Burke	459
City of Estelline	420
City of Colman	411
City of Big Stone City	401
City of McLaughlin	333
City of White	308
City of Hecla	285
City of Bryant	276
City of Faith	275
Town of Langford	190
Town of Pickstown	182
City of Badger	83
Heartland Consumers Power Dist	3
Missouri Basin Muni Power Agny	Not published
Western Minnesota Mun Pwr Agny	Not published

Largest first by retail electric customers, as each employer reports it to its federal registry.

Source: U.S. Energy Information Administration, Annual Electric Power Industry Report (Form EIA-861), 2024 final data. Data captured October 2, 2026.

Jobs at public power utilities