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Charleston Waterkeeper

EIN 26-4178586Mount Pleasant, SCEnvironmentLatest 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 6, 2026, 9:38 AM ET
IRS nonprofit listing
No issue
Revocation
Reinstated
IRS files
Agree
Sanctions
No match
IRS bulletin
No notice
California
No record
Charity type
509(a)(1)

$746krevenue
FY2024 · +107% in 3 yrs
8staff
8 of 8years filed
’17’18’19’20’21’22’23’24
Revenue and spendingRevenueSpendingDeficit
$0$200k$400k$600k$800k’17’18’19’20’21’22’23’24
Against similar nonprofits FY2024
Operating margin33.4%
Months of reserve10.2mo
Revenue growth (annualized)+16.7%
Middle half of peersMedianCharleston Waterkeeper
Where the money goes FY2024 · $497k spent
Programs$322k65%Management and general$88k18%Fundraising$87k18%990 FY2024 · Part IX line 25