South Dakota · Nonprofit
SOUTH DAKOTA PARKINSON FOUNDATION
SOUTH DAKOTA PARKINSON FOUNDATION (South Dakota) receives grants from 2 organizations whose IRS filings report $18,500 to it, the largest being SFS FOUNDATION ($18,000). 0 of them have funded it in more than one year.
- Revenue FY2025
- $253k
- Funders on record
- 2
- Grants received
- $19k
- Net assets
- $354k
What South Dakota Parkinson Foundation does
Mission
Support the effort to find the cause and cure of Parkinson Disease and to support and educate individuals affected by Parkinson Disease.
As stated on its FY2025 Form 990.
Programs
Parkinson Awareness Conferences in Sioux Falls, SD and Rapid City, SD. Information and educational conferences related to promoting awareness and education for individuals affected by Parkinson Disease.
$49,472 spent$17,725 earned by the program100% of program spendingOther program services, not described on the e-filed return.
$0 spent0% of program spending
The 2 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $49,472.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2022 to 2023, from $147k to $238k (+62%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
91% of SOUTH DAKOTA PARKINSON FOUNDATION’s revenue is contributions — more donation-reliant than the typical peer (82% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 7 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Katlin Johnson
Executive Director
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2024 and FY2025 filings.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of SOUTH DAKOTA PARKINSON FOUNDATION’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
SOUTH DAKOTA PARKINSON FOUNDATION leans on a few funders — its largest provides 97% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
100% of SOUTH DAKOTA PARKINSON FOUNDATION's grant income comes from South Dakota funders.
Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
SOUTH DAKOTA PARKINSON FOUNDATION holds deeper cash reserves than three-quarters of the 7,883 health nonprofits its size.
this organization peer median middle 50% of peers· 7,883 health nonprofits $100k–$1M, FY2025
Organizations like SOUTH DAKOTA PARKINSON FOUNDATION
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In South Dakota
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
25% of spending goes to programs.
Governance
Public support
64%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for SOUTH DAKOTA PARKINSON FOUNDATION: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds SOUTH DAKOTA PARKINSON FOUNDATION?
- SOUTH DAKOTA PARKINSON FOUNDATION (South Dakota) receives grants from 2 organizations whose IRS filings report $18,500 to it, the largest being SFS FOUNDATION ($18,000). 0 of them have funded it in more than one year.
- How many funders does SOUTH DAKOTA PARKINSON FOUNDATION have?
- IRS filings report 2 organizations giving $18,500 in grants to SOUTH DAKOTA PARKINSON FOUNDATION.
- Who is the largest funder of SOUTH DAKOTA PARKINSON FOUNDATION?
- SFS FOUNDATION is the largest funder on record, with $18,000 in grants. The full list of funders is on this page.
- How can an organization like SOUTH DAKOTA PARKINSON FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in South Dakota. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds South Dakota Parkinson →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2019–2025), and the filings of 2 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing