NCUA-insured credit union

East River

Credit Union headquartered in Madison, South Dakota.
Source: NCUA call report data, data as of March 31, 2026, fetched September 5, 2026
Total assets
$41.57 million
Branches
1
NCUA-insured since
1971
Established
1956

Headquarters and contact

AddressPo Box 31
Madison, SD 57042
CountyLake
Websitenot published in NCUA data
Phone(605) 256-8145

NCUA record

NCUA Charter11353
Federal Reserve RSSD ID567987
StatusActive
Charter type1 (NCUA)
Financials as ofMarch 31, 2026

Routing number

NCUA does not publish ABA routing numbers, and many credit unions use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this credit union, the "account details" screen in its online banking, or its official website.
See how your odds compare before you apply at East River.

Offices

East River Fcu main office
Madison, SD
220 S Harth Ave, 57042
(605) 256-8145
8:00 - 5:30 Mon - Fri 9:00 - 12:00 Sat CST