Census › South Dakota › Dewey County

Dewey County, SD

Figures from the 2020-2024 American Community Survey five-year estimates (table codes link to the same table for this area at data.census.gov) and the 2020 census (P1), via IPUMS NHGIS. Estimates for small areas carry wide margins of error; a tract's figures describe its residents, not any one organization.

Against the state: median household income here is 72% of South Dakota's ($75,081); poverty 33.0% against 11.9%; 0.6% of the state's people live here.

Census tracts

Click an area for its page. Circles are FURP records at their ZIP code's center point, sized by how many. Download this map's areas with their census figures: CSV (center points) · GeoJSON (outlines), ready for Datawrapper, Mapshaper or Google My Maps. Outlines: Census TIGER/Line 2026, simplified.

Places in the county

• North Eagle Butte 1,481 · median household income $34,358
• Eagle Butte 1,458 · median household income $45,741
• Timber Lake 779 · median household income $60,694
• La Plant 240 · median household income $18,654
• Isabel 214 · median household income $68,750
• Whitehorse 162 · median household income $59,250
• Green Grass 78 · median household income $-666,666,666
• Swift Bird 35 · median household income $-666,666,666
• Lantry 3 · median household income $-666,666,666

FURP records in Dewey County, SD

Cross-reference: 133 nonprofits for 5,205 residents is 255.5 per 10,000 people; their latest-year revenue of $89,199,141 is $17,137 per resident, 97.4% of all household income here (households at the median income).

Highest-paid people on nonprofit returns here

Each person's latest year on a 990 at a nonprofit placed here (reported pay including related organizations and other compensation); people paid under $50,000 are left out. The median household income here is $54,104.

Nonprofits: biggest by revenue (latest return)

• MOBRIDGE REGIONAL HOSPITAL Mobridge, SD · $33,726,057
• FOUR BANDS COMMUNITY FUND INC Eagle Butte, SD · $20,507,938
• AKIPTAN Eagle Butte, SD · $9,054,895
• MOREAU-GRAND ELECTRIC COOPERATIVE INC Timber Lake, SD · $8,048,418
• SACRED HEART CENTER Eagle Butte, SD · $3,633,979
• MNI WASTE WATER COMPANY Eagle Butte, SD · $3,499,611
• CHEYENNE RIVER YOUTH PROJECT INC Eagle Butte, SD · $3,198,927
• MOBRIDGE COUNTRY CLUB Mobridge, SD · $734,047
• WALTER AND VIRGINIA HAGER FOUNDATION Mobridge, SD · $705,022
• NATIVE WOMENS SOCIETY OF THE GREAT PLAINS RECLAIMING OUR SACREDNESS Eagle Butte, SD · $637,917

Nonprofit contractors: biggest by paid by nonprofits

• Farlee Trenching and Backhoe Eagle Butte, SD · $1,541,899
• DIAMOND D CONSTRUCTION LLC Eagle Butte, SD · $763,213
• NORTH CENTRAL STEEL SYSTEMS Mobridge, SD · $573,030
• MILLIKEN ELECTRIC Mobridge, SD · $529,463
• MISSOURI BREAKS Timber Lake, SD · $513,545
• Tribal Ventures Eagle Butte, SD · $267,846
• JENSON ROCK & SAND INC Mobridge, SD · $208,179
• KELLER CONSTRUCTIONS LLC Timber Lake, SD · $172,158
• EAGLE STORAGE LLC Eagle Butte, SD · $101,150
• ERV KNUTH Mobridge, SD · $2,975

Political committees

• WAYNE PETERSON FOR U S SENATE COMMITTEE Mobridge, SD

Form 5500 plan sponsors: biggest by plans

• CHEYENNE RIVER SIOUX TRIBE Eagle Butte, SD · 2
• AIR KRAFT SPRAYING, INC. Timber Lake, SD · 1
• AKIPTAN, INC. Eagle Butte, SD · 1
• AUTOMOTIVE COMPANY, INC. Isabel, SD · 1
• CHEYENNE RIVER GROCERY MARKETING CORP. Eagle Butte, SD · 1
• CHEYENNE RIVER HOUSING AUTHORITY Eagle Butte, SD · 1
• CHEYENNE RIVER HOUSING AUTHORITY Eagle Butte, SD · 1
• EAGLE BUTTE COOPERATIVE ASSOCIATION Eagle Butte, SD · 1
• M&A VENTURES, INC. Eagle Butte, SD · 1
• MOUNTAIN PLAINS COMMUNITY DEVELOPMENT CORPORATION Eagle Butte, SD · 1

Open Payments recipients: biggest by industry payments

• BRETT M. JOHNSON Eagle Butte, SD · $415
• MATTHEW BLUMER Eagle Butte, SD · $316
• KATHLEEN KAE ZAMBO Eagle Butte, SD · $31
• CARLA SCHWEITZER Eagle Butte, SD · $21
• ALEXANDRA BACHMAN-WILLIAMS Eagle Butte, SD · $19
• LISA LISA BROWER Eagle Butte, SD · $18

Patent and trademark owners: biggest by patents and marks

• Native BioData Consortium Eagle Butte, SD · 5
• Four Bands Community Fund, Inc. Eagle Butte, SD · 3
• International Society for the Protection of Mustangs and Burros Lantry, SD · 3
• CHEYENNE RIVER YOUTH PROJECT, INC. Eagle Butte, SD · 2
• Western Sky Financial, LLC Timber Lake, SD · 2
• GILL LAND COMPANY, LLC Timber Lake, SD · 1
• Lakota Sioux Productions, LLC Eagle Butte, SD · 1
• Veteran Service Corps Eagle Butte, SD · 1

Federal award recipients: biggest by federal awards

• CHEYENNE RIVER SIOUX TRIBE Eagle Butte, SD · $1,180,042,910
• CHEYENNE RIVER HOUSING AUTHORITY Eagle Butte, SD · $153,360,560
• MNI WASTE' WATER COMPANY Eagle Butte, SD · $86,569,716
• EAGLE BUTTE SCHOOL DISTRICT 20-1 Eagle Butte, SD · $62,628,446
• TIMBER LAKE SCHOOL DISTRICT 20-3 Timber Lake, SD · $53,265,430
• FOUR BANDS COMMUNITY FUND, INCORPORATED Eagle Butte, SD · $50,871,807
• CRST TELEPHONE AUTHORITY Eagle Butte, SD · $39,653,616
• CHEYENNE RIVER ALCOHOL & DRUG ABUSE COMMITTEE Eagle Butte, SD · $38,858,098
• DPEC & RCS JOINT VENTURE, LLC Eagle Butte, SD · $17,572,311
• MOBRIDGE HOUSING AUTHORITY MAIN OFFICE Mobridge, SD · $16,515,997

Census figures are from IPUMS NHGIS: the American Community Survey 2020-2024 five-year estimates (ACS table codes shown with each figure) and the 2020 decennial census (Demographic and Housing Characteristics), by state, county, place and census tract. FURP records are placed by ZIP code (the Census Bureau's 2020 ZCTA-to-county and ZCTA-to-tract relationship files: the county or tract holding most of the ZIP's land) and by city name (Census place names, normalized), so a record's tract is its ZIP's main tract, not its street's. Cite: Jonathan Schroeder, David Van Riper, Steven Manson, Grace Cooper, Zachary Krause, Tracy Kugler, Tsu Zhu, and Steven Ruggles. IPUMS National Historical Geographic Information System: Version 21.0 [dataset]. Minneapolis, MN: IPUMS. 2026. http://doi.org/10.18128/D050.V21.0