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Rock County Historical Society Inc

EIN 39-0825331Janesville, WIArts & CultureLatest 990 FY2024

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Listed with the IRS. Every screen came back clear.

A 501(c)(3) on Publication 78 and the IRS master file.

A paid feature, included from the $75 plan up. Sign in to download.Checked Nov 7, 2026, 4:39 AM ET
IRS nonprofit listing
No issue
Revocation
None
IRS files
Agree
Sanctions
No match
IRS bulletin
No notice
California
No record
Charity type
509(a)(1)

$563krevenue
FY2024 · −59% in 3 yrs
10staff
8 of 8years filed
’17’18’19’20’21’22’23’24
Revenue and spendingRevenueSpendingDeficit
$0$500k$1.0M$1.5M’17’18’19’20’21’22’23’24
Against similar nonprofits FY2024
Operating margin4.6%
Months of reserve6.2mo
Revenue growth (annualized)−7.7%
Middle half of peersMedianRock County Historical Society
Where the money goes FY2024 · $537k spent
Programs$345k64%Management and general$140k26%Fundraising$53k10%990 FY2024 · Part IX line 25