Utilities in South Dakota are run by a patchwork of private companies, city departments, member-owned cooperatives and rural water systems. Which one serves your address depends less on the county than on the street, the town limits and the age of the neighborhood. This page explains who handles water, electricity, natural gas and sewer service across the state, and what to expect when you call.

Who Regulates Utilities in South Dakota

The South Dakota Public Utilities Commission, headquartered in Pierre, is the main state regulator. Three elected commissioners oversee investor-owned electric and natural gas companies as well as telephone providers. They review rate requests, hold public hearings and take consumer complaints. They also review the siting of large energy facilities and transmission lines under state law.

The commission does not set rates for every provider, though. City-owned utilities answer to their city councils or commissions. Electric cooperatives answer to boards elected by their own members. Rural water systems answer to their boards of directors. If your bill comes from one of these, take a rate or billing concern to the board or the manager's office first, not the state commission.

Drinking water quality is a separate track. The state Department of Agriculture and Natural Resources enforces federal Safe Drinking Water Act standards and permits wastewater systems. Every community water system must send customers an annual water quality report, often called a Consumer Confidence Report, by July 1. If you did not receive one, ask your water office for a copy.

How Service Differs From Sioux Falls to the Black Hills

Around Sioux Falls, our database lists NorthWestern Energy at 3010 West 69th Street (605-978-2900). The city straddles Minnehaha and Lincoln counties, and Minnehaha County has seven listings in all. In a fast-growing metro area, electricity, gas, water and sewer often come from different providers. Lincoln County Rural Water, at 201 Railroad Avenue in Harrisburg (605-767-2966), serves customers outside city limits where municipal pipes do not reach. A new house on the edge of town can sit in a rural water district even if it carries a Sioux Falls mailing address.

In the Black Hills, the pattern changes. Black Hills Power Inc., at 425 Cliff Street in Deadwood (605-722-2420), supplies electricity across much of the region. Lawrence County lists seven offices, including Spearfish Utility Billing at 625 North 5th Street (605-642-1327) and the Lead Water Department at 801 West Main Street (605-584-1313). Nearby Sturgis, in Meade County, runs its own water office at 1040 2nd Street (605-347-2573). Steep streets, older lines and deep winter frost make water main maintenance a constant task for small city crews.

Rapid City sits between the two worlds. Pennington County also has seven listings, among them the Colonial Pine Hills Sanitary District at 8251 Dunsmore Road (605-348-3113). A sanitary district is a special-purpose local government, usually run by an elected board, that provides sewer service to a defined area. If you live on the fringe of Rapid City and wonder who bills your sewer, check whether a district covers your lot.

Rural Water Systems and Electric Cooperatives on the Prairie

Across eastern and central South Dakota, many farms and small towns depend on rural water systems, which pipe treated water to members over large service areas. Examples in our listings include WEB Water Development at 38462 County Road 12W, Aberdeen (605-229-4749); Aurora Brule Rural Water Plant on 249th Street in Chamberlain (605-734-6091); Grant Roberts Rural Water System at 1209 South Dakota Street, Milbank (605-432-6793); Kingbrook Rural Water at 302 East Ash Street, Arlington (605-983-5074); and Perkins County Rural Water System at 104 Main Street, Bison (605-244-5608).

Electricity works the same way in many rural areas. Northern Electric Cooperative at 39456 133rd Street in Bath (605-225-0310), in Brown County, is owned by the people it serves. So are Southeastern Electric Cooperative at 605 South Dakota 11 in Alcester (605-934-1961) and Black Hills Electric Cooperative at 25178 Cooperative Way in Custer (605-673-4461). Customers are called members, they vote for the board, and they may receive capital credits when the co-op has margins to return.

Many towns keep service in-house. The Watertown Municipal Utilities Department (901 4th Avenue Southwest, 605-882-6233), the Yankton Utilities Director (315 West Riverside Drive, 605-668-5270), the Vermillion Water Department (118 Church Street, 605-677-7079), the Beresford Electric Department (509 North 4th Street, 605-763-5501) and the Webster Water Department (311 West 5th Avenue, 605-345-4032) are all city-run. City offices often put water and sewer on one bill and take questions at city hall.

Mitchell, Huron and Pierre: Company Offices and City Departments

In the James River valley and along the Missouri, listings lean toward investor-owned companies and city offices. NorthWestern Energy is listed at 514 North Main Street in Mitchell (605-996-5636) and at 600 Market Street Southwest in Huron (605-352-8411). The database also lists South Dakota Electric Utility at 106 West Capitol Avenue in Pierre (605-224-6311). The same company appears under spellings such as NorthWestern, Northwestern and North Western Energy. If a search for one spelling comes up empty, try another, or search by city.

Starting Service, Paying Bills and Getting Help in South Dakota

Setting up service is usually a short phone call or counter visit. Have these ready:

Renters should check the lease first. In many buildings the landlord keeps water and sewer in their own name and passes the cost through rent. Ask before you call, so you do not open a duplicate account.

Before any digging, from a fence post to a garden bed, call 811, the statewide call-before-you-dig line. Utility owners mark buried lines free of charge. Allow a couple of working days for marking before you break ground.

Winter matters here. Know where your main water shutoff is, keep outdoor spigots drained, and report a frozen service line to your water office right away. For outages, call your own provider rather than the state commission, because each company and cooperative runs its own outage line.

If money is tight, ask your provider about a payment plan. Then contact your regional community action agency about the Low Income Energy Assistance Program, which the state Department of Social Services administers. Applications usually open in the fall. If a dispute with an investor-owned company stays unresolved, you can file a complaint with the Public Utilities Commission in Pierre. Write down dates, names and account numbers from every call first.

Each listing in this directory gives an address and phone number. Call first, because counter hours differ and some offices handle applications for service only by phone. Say which service you need: water, sewer, electricity or gas. A city hall switchboard can usually transfer you, while a cooperative office handles only its own members. Not every listing is a metered utility, either. Stern Oil, at 714 Corporation Street in Aberdeen (605-229-0925), is a fuel supplier, so ask what a business actually provides before you visit.

Municipal utility departments throughout South Dakota provide electricity, water, sewer, and related services to millions of residents and businesses. Utility governance in South Dakota is shaped by the state's public utility commission, which regulates investor-owned utilities, while municipally owned systems operate under local authority.

Utilities locations are available in 62 cities across South Dakota. They are spread across 43 counties.

Cities with the highest concentration of utility offices include Rapid, Sioux Falls, Aberdeen, reflecting their larger populations and service area demands.

South Dakota residents should contact their local utility provider directly for account setup, billing questions, and outage reporting. State-level utility assistance programs may also be available through the state's health and human services agency.

Utilities by Counties

A
B
C
D
E
F
G
H
J
K
L
M
P
S
T
U
Y

South Dakota residents who need help paying utility bills may qualify for the Low Income Home Energy Assistance Program (LIHEAP), administered through the state's community services offices. Contact your local utility provider to inquire about budget billing, shut-off protection, and additional assistance programs available in your area.

Browse Utilities by county across South Dakota to find your local utility department's contact information and service office locations.

Planning Around South Dakota Weather and Distance

South Dakota is a large, thinly populated state, so the nearest utility counter can be a long drive. Before you head to a small-town office in places such as Bison, Arlington or Bath, phone ahead to confirm hours and whether the counter takes payments in person. Many offices also accept payment by mail or online.

Seasons drive most service problems. Blizzards and ice storms can pull down power lines, spring thaw can flood low-lying streets along rivers such as the James and the Big Sioux, and summer thunderstorms bring wind and hail. Keep your provider's outage number in your phone, along with a flashlight and a plan for heat if the power is out for hours. Wind energy is also a growing part of the state's electricity mix, which is one reason transmission projects come before the Public Utilities Commission for review.

Government hubs have their own clusters. Pierre, the capital in Hughes County, and Mitchell in Davison County each have four listings in our database, mixing company offices and city departments. Browse by county to see which offices sit closest to you, then confirm service territory by calling the provider with your street address. A provider that serves the house next door may not serve yours.

South Dakota Utilities: Frequently Asked Questions

The South Dakota Public Utilities Commission in Pierre regulates investor-owned electric and natural gas companies and telecommunications carriers. Its three commissioners are elected statewide, and the commission accepts consumer complaints about the companies it regulates. State law also assigns electric service territories, which is why one electric provider normally serves a given address. The commission does not set rates for city-owned utilities, electric cooperatives or rural water systems. City councils or member-elected boards set those. Drinking water standards fall under the Department of Agriculture and Natural Resources instead. If you are unsure which body applies, start with the company or office that sends your bill.

Call or visit the city water department listed for your town. Vermillion's office is at 118 Church Street, Webster's is at 311 West 5th Avenue, and Sturgis's is at 1040 2nd Street. Bring photo identification, the service address and your move-in date. Some cities ask for a deposit or for proof of ownership or a lease, so ask when you call. City water accounts often include sewer service and sometimes trash collection on the same bill. If you rent, confirm with your landlord whether utilities are already in the building owner's name before you open a new account.

Yes. Call 811, the national call-before-you-dig number, before any excavation, including planting a tree, setting fence posts or installing a mailbox. The call is free, and the utility owners mark the approximate location of buried lines with paint or flags. Allow a couple of working days for marking, and do not dig until every utility has responded. Private lines, such as those running to a detached garage, a shop or an irrigation system, are often not marked, so ask your electric or water provider what falls to you. Hitting a gas line or buried cable can be dangerous and expensive.

If you are on a community water system, such as a city department or a rural water system, the system tests the water under federal and state rules. It must send customers an annual water quality report, usually by July 1. Request a copy from the water office, or look for the mailing that came with a bill. Private wells are different: no agency tests them for you. Owners are responsible for their own testing, and a state-certified laboratory can run the analysis. Test after flooding, if the water changes in taste or smell, or before you buy a rural property with a well.

Yes. The Low Income Energy Assistance Program, known as LIHEAP, is administered by the state Department of Social Services and delivered locally through community action agencies. Eligibility depends on household size and income, and the application season usually begins in the fall, so check current dates before you apply. Separately, ask your provider about a payment plan before you fall behind. Electric cooperatives, city utilities and investor-owned companies each set their own policies, and calling early gives you more options than waiting for a shutoff notice. Have recent bills and proof of income on hand when you apply.

Look first at rural water systems and sanitary districts. Lincoln County Rural Water in Harrisburg, WEB Water Development in Aberdeen and Perkins County Rural Water System in Bison are examples of member-based systems with large service areas. In the Rapid City area, the Colonial Pine Hills Sanitary District serves its own district. Hookup fees, membership charges and line extension rules vary by system, so ask for the current schedule in writing. For power, check whether an electric cooperative or an investor-owned company holds the territory. A neighbor's bill, or the county page in this directory, is often the fastest clue.