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Bank · FDIC insured

Security National Bank of South Dakota

A $251.5M bank headquartered in Dakota Dunes, SD, with 3 branches in South Dakota. Best rates: CDs 4.25% and savings 3.50% APY.

Security National Bank of South Dakota Carrot Score

72

Carrot Score

Higher than 30% of U.S. banks and credit unions

LowestMiddleHighest

#13 of 18 in Sioux Falls, SD-MN metroHow the score works →

Deposits are federally insured by the FDIC up to $250,000 per depositor.

About Security National Bank of South Dakota

Headquarters
325 Dakota Dunes Blvd, Dakota Dunes, SD 57049
FDIC certificate
34394 ↗
Visit institution website ↗

3 branches in South Dakota

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Walk-in offices from the FDIC directory as of September 4, 2026. Directions open Google Maps. A nearby branch doesn’t mean you can join or open an account.