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Charity Clarity › Look up a charity › Arizona

Mohave County Historical Society

Kingman, Arizona · EIN 86-0173960 · tax-exempt since 1968

C

Charity Clarity grade C (score 57.9 of 100), based on the Form 990 for the year ended June 2025.

Graded against 88,048 unclassified nonprofits with revenue $500K–$2M 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.26.1 months63
GovernanceBoard independence, key policies and audit, per the 990.39% of practices39
Margin stabilityHow steady the surplus or deficit is year to year.46
Revenue spreadHow much revenue rests on one type of income.18% from one source71
Filing recordOn-time, complete filings, year after year.100%100

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

Year by year

20212022202320242025grey: revenue · green: spending
Year endedFormRevenueSpendingSurplusNet assetsMonths of spendingStaffGrade
Jun 2025Form 990$553K$496K$58K$1.08M26.117C
Jun 2024Form 990$583K$451K$132K$1.02M27.218D
Jun 2023Form 990$360K$412K−$52K$890K25.912C
Jun 2022Form 990$270K$353K−$82K$926K31.512D
Jun 2021Form 990$192K$307K−$115K$1.15M45.112D

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: