Nonprofits in South Dakota

Browse and explore nonprofit organizations in South Dakota

100 organizations
Across South Dakota, the latest Form 990 nonprofit cohort covers 1,207 organizations, totaling $5.1B in combined revenue (2026 filings). SANFORD GROUP RETURN leads at $5.7B. Aggregate revenue is up 6.0% versus the prior filing year.
Top Nonprofits by Revenue
# Organization Revenue Assets
1 SANFORD GROUP RETURN
EIN: 453791176 · SIOUX FALLS, SD
$5.7B $3.8B
2 Avera McKennan
EIN: 460224743 · Sioux Falls, SD
$1.5B $1.4B
3 Monument Health Rapid City Hospital Inc
EIN: 460319070 · Rapid City, SD
$1.1B $1.5B
4 THE EVANGELICAL LUTHERAN GOOD SAMARITAN SOCIETY
EIN: 450228055 · SIOUX FALLS, SD
$953.3M $1.1B
5 EAST RIVER ELECTRIC POWER COOPERATIVE INC
EIN: 460225402 · MADISON, SD
$356.9M $910.3M
6 AVERA HEALTH PLANS INC
EIN: 460451539 · SIOUX FALLS, SD
$342.3M $94.1M
7 Avera Health
EIN: 460422673 · Sioux Falls, SD
$285.3M $1.7B
8 SANFORD HEALTH FOUNDATION
EIN: 363297853 · SIOUX FALLS, SD
$214.4M $1.3B
9 Monument Health Network Inc
EIN: 460360899 · Rapid City, SD
$210.7M $138.9M
10 PRAIRIE LAKES HEALTH CARE SYSTEM INC
EIN: 460391067 · WATERTOWN, SD
$202.9M $461.7M
11 Avera St Luke's
EIN: 460224598 · Aberdeen, SD
$197.1M $150.1M
12 Avera Queen of Peace
EIN: 460224604 · Mitchell, SD
$159.9M $223.1M
13 Sacred Heart Health Services
EIN: 460225483 · Yankton, SD
$148.4M $399.6M
14 THE SIGNATRY CHARITABLE TRUST
EIN: 825070897 · Sioux Falls, SD
$145.4M $340.6M
15 AUGUSTANA UNIVERSITY ASSOCIATION
EIN: 460224588 · SIOUX FALLS, SD
$140.9M $365.4M
16 GREAT PLAINS TRIBAL LEADERS HEALTH
EIN: 460420063 · RAPID CITY, SD
$127.1M $195.5M
17 Avera St Mary's
EIN: 460230199 · Pierre, SD
$122.1M $98.1M
18 DELTA DENTAL OF SOUTH DAKOTA
EIN: 460309258 · PIERRE, SD
$110.7M $45.1M
19 SIOUX VALLEY SOUTHWESTERN ELECTRIC COOPERATIVE INC
EIN: 460189704 · COLMAN, SD
$106.1M $352.2M
20 SOUTHEASTERN ELECTRIC COOPERATIVE INC
EIN: 460454373 · LENNOX, SD
$96.0M $274.3M
21 Avera at Home
EIN: 460399291 · Sioux Falls, SD
$83.2M $41.5M
22 SOUTH DAKOTA STATE UNIVERSITY FOUNDATION
EIN: 460273801 · BROOKINGS, SD
$73.3M $411.9M
23 CHILDREN'S CARE HOSPITAL AND SCHOOL
EIN: 460233030 · SIOUX FALLS, SD
$73.2M $75.4M
24 SOUTH DAKOTA COMMUNITY FOUNDATION
EIN: 460398115 · Pierre, SD
$69.2M $886.1M
25 LEWIS & CLARK RURAL WATER SYSTEM
EIN: 363755632 · TEA, SD
$67.9M $622.4M
26 RURAL HEALTH CARE INC
EIN: 460396683 · Fort Pierre, SD
$65.9M $29.6M
27 HURON REGIONAL MEDICAL CENTER INC
EIN: 460345312 · HURON, SD
$53.6M $111.9M
28 SIOUX FALLS AREA COMMUNITY FOUNDATION INC
EIN: 311748533 · SIOUX FALLS, SD
$50.6M $390.9M
29 SANFORD-GOOD SAMARITAN COMMUNITY HEALTH
EIN: 371834045 · SIOUX FALLS, SD
$50.0M $42.2M
30 OGLALA LAKOTA COLLEGE
EIN: 237135915 · KYLE, SD
$49.6M $144.2M
31 BLACK HILLS WORKS INC
EIN: 460341382 · RAPID CITY, SD
$49.4M $23.6M
32 WEST RIVER ELECTRIC ASSN INC
EIN: 460204517 · WALL, SD
$49.0M $179.3M
33 SOUTH DAKOTA ACHIEVE
EIN: 237072116 · SIOUX FALLS, SD
$46.6M $30.6M
34 CENTRAL ELECTRIC COOPERATIVE INC
EIN: 411955109 · MITCHELL, SD
$42.4M $136.4M
35 UNIVERSITY OF SIOUX FALLS
EIN: 460224600 · SIOUX FALLS, SD
$41.1M $96.4M
36 Oglala Lakota Housing Authority
EIN: 301386293 · PINE RIDGE, SD
$38.3M $81.5M
37 UNIVERSITY OF SOUTH DAKOTA FOUNDATION
EIN: 466018891 · VERMILLION, SD
$38.2M $367.5M
38 MADISON COMMUNITY HOSPITAL
EIN: 460228038 · MADISON, SD
$38.0M $59.7M
39 MOUNT MARTY UNIVERSITY
EIN: 460283336 · YANKTON, SD
$37.9M $79.2M
40 CHILDREN'S HOME SOCIETY OF SOUTH DAKOTA
EIN: 460224542 · SIOUX FALLS, SD
$36.1M $58.9M
41 HORIZON HEALTH CARE INC
EIN: 460341255 · HOWARD, SD
$34.3M $25.7M
42 Assn of Hutterian Brethren Churches
EIN: 460369923 · Aberdeen, SD
$33.6M $30.5M
43 FALL RIVER HEALTH SERVICES
EIN: 460450523 · HOT SPRINGS, SD
$33.1M $40.8M
44 MARGOT AND TOM PRITZKER FOUNDATION
EIN: 883935630 · SIOUX FALLS, SD
$32.5M $30.8M
45 DAKOTA WESLEYAN UNIVERSITY
EIN: 460224589 · MITCHELL, SD
$32.5M $89.2M
46 FEEDING SOUTH DAKOTA
EIN: 363293534 · SIOUX FALLS, SD
$32.2M $22.9M
47 NORTHERN ELECTRIC COOPERATIVE
EIN: 460151015 · BATH, SD
$31.4M $117.4M
48 PRESBYTERIAN RETIREMENT VILLAGE OF RAPID CITY
EIN: 460354383 · RAPID CITY, SD
$31.1M $158.7M
49 St Benedict Health Center
EIN: 460226738 · Parkston, SD
$30.2M $77.5M
50 OAHE ELECTRIC COOPERATIVE INC
EIN: 460221074 · BLUNT, SD
$30.0M $42.8M
51 MOBRIDGE REGIONAL HOSPITAL
EIN: 460255944 · MOBRIDGE, SD
$30.0M $58.8M
52 SDSM&T CENTER FOR ALUMNI RELATIONS & ADVANCEMENT
EIN: 466011771 · RAPID CITY, SD
$29.3M $176.2M
53 WINNER REGIONAL HEALTHCARE CENTER
EIN: 460274380 · WINNER, SD
$28.4M $29.0M
54 DAKOTA ENERGY COOPERATIVE INC
EIN: 460434317 · HURON, SD
$28.3M $65.0M
55 MID-DAKOTA RURAL WATER SYSTEM INC
EIN: 363584582 · MILLER, SD
$27.9M $146.3M
56 LUTHERAN SOCIAL SERVICES OF SOUTH DAKOTA
EIN: 460224731 · SIOUX FALLS, SD
$27.2M $19.9M
57 BLACK HILLS ELECTRIC COOPERATIVE INC
EIN: 460111503 · CUSTER, SD
$26.7M $83.4M
58 DOW RUMMEL VILLAGE
EIN: 460271277 · SIOUX FALLS, SD
$26.2M $71.7M
59 LITTLE WOUND SCHOOL BOARD INC
EIN: 466040216 · KYLE, SD
$23.4M $22.4M
60 DAKOTABILITIES INC
EIN: 460306216 · SIOUX FALLS, SD
$22.8M $27.5M
61 PLATTE COMMUNITY MEMORIAL HOSPITAL INC
EIN: 460239781 · PLATTE, SD
$22.7M $40.0M
62 LIFESCAPE FOUNDATION
EIN: 460353254 · SIOUX FALLS, SD
$22.6M $155.2M
63 COTEAU DES PRAIRIES HOSPITAL
EIN: 460278210 · SISSETON, SD
$22.2M $21.1M
64 SOUTH DAKOTA BANKERS BENEFIT PLAN TRUST
EIN: 464332220 · PIERRE, SD
$21.1M $13.1M
65 LAKE REGION ELECTRIC ASSOCIATION INC
EIN: 460156581 · WEBSTER, SD
$20.5M $56.1M
66 FREEMAN REGIONAL HEALTH SERVICES
EIN: 460232450 · FREEMAN, SD
$20.4M $23.9M
67 WEB WATER DEVELOPMENT ASSOCIATION INC
EIN: 460352027 · ABERDEEN, SD
$20.2M $239.4M
68 BETHANY LUTHERAN HOME FOR THE AGED INC
EIN: 460233029 · SIOUX FALLS, SD
$19.9M $31.4M
69 PHILIP HEALTH SERVICES INC
EIN: 460361016 · PHILIP, SD
$19.8M $27.6M
70 LEWIS AND CLARK BEHAVIORAL
EIN: 460309601 · YANKTON, SD
$19.2M $40.4M
71 SICANGU OYATE HO INC DBA ST FRANCIS INDIAN SCHOOL
EIN: 237116414 · SAINT FRANCIS, SD
$19.0M $38.6M
72 FEM ELECTRIC ASSOCIATION INC
EIN: 460213171 · IPSWICH, SD
$18.7M $51.1M
73 SOUTHEASTERN BEHAVIORAL HEALTH CARE
EIN: 460232306 · SIOUX FALLS, SD
$18.7M $12.6M
74 WEST CENTRAL ELECTRIC COOPERATIVE
EIN: 460225950 · MURDO, SD
$18.5M $57.3M
75 SIOUX FALLS CHRISTIAN SCHOOLS ASSOCIATION
EIN: 460340024 · SIOUX FALLS, SD
$17.8M $44.2M
76 HURON AREA CENTER FOR INDEPENDENCE
EIN: 460326401 · HURON, SD
$17.6M $18.4M
77 LACREEK ELECTRIC ASSOCIATION INC
EIN: 460218629 · MARTIN, SD
$17.5M $69.8M
78 CHERRY TODD ELECTRIC COOPERATIVE INC
EIN: 460252750 · MISSION, SD
$17.4M $58.7M
79 SANFORD
EIN: 271218956 · SIOUX FALLS, SD
$17.4M $667.4M
80 HUMAN SERVICE AGENCY
EIN: 460275247 · WATERTOWN, SD
$17.4M $20.3M
81 INTER-LAKES COMMUNITY ACTION PARTNERSHIP INC
EIN: 460282131 · MADISON, SD
$17.0M $14.8M
82 CHILDREN'S HOME FOUNDATION
EIN: 460366277 · SIOUX FALLS, SD
$16.7M $179.1M
83 Avera Gettysburg
EIN: 460234354 · Gettysburg, SD
$16.6M $47.1M
84 SANFORD UNDERGROUND RESEARCH FACILITY FOUNDATION
EIN: 842556473 · LEAD, SD
$16.6M $15.6M
85 PIONEER MEMORIAL HOSPITAL AND HEALTH SERVICES
EIN: 460260288 · VIBORG, SD
$16.4M $19.8M
86 CODINGTON-CLARK ELECTRIC COOPERATIVE
EIN: 460121065 · WATERTOWN, SD
$16.4M $61.7M
87 Presentation College
EIN: 460280847 · Aberdeen, SD
$16.1M $14.8M
88 F-M AMBULANCE SERVICE INC
EIN: 450344371 · SIOUX FALLS, SD
$16.0M $7.8M
89 ELEVATE RAPID CITY
EIN: 460118545 · RAPID CITY, SD
$15.9M $33.1M
90 RURAL OFFICE OF COMMUNITY SERVICES
EIN: 460365648 · WAGNER, SD
$15.9M $4.3M
91 LIFEQUEST INC
EIN: 460348946 · MITCHELL, SD
$15.7M $10.7M
92 WASHINGTON PAVILION MANAGEMENT INC
EIN: 460435791 · SIOUX FALLS, SD
$15.4M $19.4M
93 YOUTH & FAMILY SERVICES INC
EIN: 466017085 · RAPID CITY, SD
$15.4M $18.9M
94 H-D ELECTRIC COOPERATIVE INC
EIN: 460212565 · CLEAR LAKE, SD
$15.3M $50.3M
95 ST MICHAEL'S HOSPITAL INC
EIN: 460225414 · TYNDALL, SD
$15.0M $25.5M
96 WAGNER COMMUNITY MEMORIAL HOSPITAL
EIN: 460226283 · WAGNER, SD
$14.7M $17.8M
97 CEDAR LAKE VILLAGE INC
EIN: 481209650 · SIOUX FALLS, SD
$14.7M $33.4M
98 Bethesda Home of Aberdeen Inc
EIN: 460367117 · Aberdeen, SD
$14.5M $13.3M
99 BLACK HILLS AREA COMMUNITY FOUNDATION
EIN: 363608635 · RAPID CITY, SD
$13.9M $66.9M
100 GRAND ELECTRIC COOPERATIVE INC
EIN: 460221377 · BISON, SD
$13.8M $67.6M
Data from IRS Form 990 filings. Click an organization name to view full details. © 2026 990 Finder by Trantor SpA.