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Data / Nonprofits / South Dakota / Watertown / Health care

Health care nonprofits in Watertown, SD: 8 registered with the IRS

8 health care nonprofits are registered with the IRS in Watertown, SD, 8 of them 501(c)(3) charities; the 4 that report revenue took in $204.8 million. The largest by revenue: Prairie Lakes Health Care System Inc ($202.9 million), Tower Industry Family Support Charitable Foundation ($988,535), Prairie Lakes Health Care Foundation ($816,715).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Prairie Lakes Health Care System Inc501(c)(3)1987$202.9 million$461.7 million2025-05
Tower Industry Family Support Charitable Foundation501(c)(3)2014$988,535$6.5 million2025-12
Prairie Lakes Health Care Foundation501(c)(3)1980$816,715$5.4 million2024-12
Search & Rescue Support Inc501(c)(3)2006$62,114$283,6022024-12
Assisting Children To Smile Inc501(c)(3)2024$0$02025-09
Lake Area Kidney Endowment501(c)(3)2015$0$02025-12
Prairie Lakes Legacy Fund Inc501(c)(3)2026$13.9 million2025-12
Tops Club Inc501(c)(3)2008$0$02025-03

Other causes in Watertown, SD

Every nonprofit in Watertown, SD · Health care nonprofits across the state · Nonprofits in every city of the state

Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.