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Oklahoma Centennial Botanical Garden

Tulsa, Oklahoma · EIN 47-0878581 · Environment · tax-exempt since 2002

D

Charity Clarity grade D (score 45.0 of 100), based on the Form 990 for the year ended December 2024.

Graded against 7,829 environment nonprofits with revenue $2M–$10M filing the same form. A = top 10%, B = next 20%, C = middle 40%, D = next 20%, F = bottom 10%.

What goes into the grade

MeasureThis charityScore (0–100)
ReservesMonths of spending covered by unrestricted net assets.80.4 months0
GovernanceBoard independence, key policies and audit, per the 990.100% of practices100
Margin stabilityHow steady the surplus or deficit is year to year.14
Revenue spreadHow much revenue rests on one type of income.95% from one source33
Filing recordOn-time, complete filings, year after year.100%100
Program spendingSelf-reported by the filer.88.2%not scored
Management costsShare of spending.0.5%not scored
Cost to raise $1Fundraising cost per dollar given.$0.10not scored

Scores compare this charity with its peer group; 100 is best. How Charity Clarity rates charities.

Year by year

201520162017201820202021202220232024grey: revenue · green: spending
Year endedFormRevenueSpendingSurplusNet assetsMonths of spendingStaffGrade
Dec 2024Form 990$4.00M$3.77M$228K$25.30M80.441D
Dec 2023Form 990$8.23M$3.72M$4.51M$25.07M80.943C
Dec 2022Form 990$1.90M$3.07M−$1.17M$20.56M80.442D
Dec 2021Form 990$8.03M$2.76M$5.27M$21.73M94.643C
Dec 2020Form 990$2.07M$2.32M−$247K$16.46M85.243D
Dec 2018Form 990$2.97M$2.52M$449K$15.22M72.534F
Dec 2017Form 990$1.43M$2.02M−$587K$14.77M88.033F
Dec 2016Form 990$3.33M$1.71M$1.62M$15.35M107.727D
Dec 2015Form 990$1.78M$1.32M$461K$13.73M124.511D

From the organisation’s own IRS filings. “Months of spending” is total net assets divided by a month of that year’s spending. A blank grade means that year was not rated.

Read the filings

Every figure here comes from the returns this charity filed with the IRS. These sites show the full returns and more about the organisation:

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