Banks in Eureka, SD

Bank branch map: Eureka

Banks sit at the coordinates in their FDIC record; credit union offices at their NCUA address, located with the U.S. Census Bureau Geocoder. Point at a marker for today's hours, tap it for the address, directions and the bank's site.

Short answer: 2 banks and credit unions operate 2 locations in Eureka, according to the FDIC. 2 of them have coordinates on record and are on the map. ATMs and opening hours are not in the sources this page uses yet; each marker links to directions.

Positions are the regulators' own coordinates, or the Census Geocoder's point for the address, and can sit a few hundred feet from the door. Streets, buildings and parks come from OpenStreetMap through OpenFreeMap, with every street named as you zoom in; if that map cannot load, a simpler map drawn from the Census Bureau's TIGER/Line files takes its place. ATMs will follow with the Overture Maps import.

All banks in Eureka

Sorted by number of local branches. Each branch shows where its hours and phone number come from.

Short answer: Great Plains Bank and First State Bank of Roscoe have the most locations in Eureka, with 1 each. 2 banks have a single office in the city. Open any bank to see each address, today's hours where the bank publishes them and the phone number.

First State Bank of Roscoe 1 branch · main office Roscoe, SD Bank · 1

First State Bank of Roscoe has 1 branch in Eureka, 3 across South Dakota and 3 nationwide. FDIC records list its main office in Roscoe, SD and show it operating since 1903. With $147.5 million in total assets on June 30, 2026, it ranks No. 3,345 of 4,232 U.S. banks by total assets. The Eureka Branch at 901 7th Street dates to 2016 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.

• Eureka Branch

  901 7th Street, 57437

  Hours: see the bank's site
  Directions

First State Bank of Roscoe: profile, branches and contacts

Great Plains Bank 1 branch · main office Eureka, SD Bank · 1

Great Plains Bank has 1 branch in Eureka, 3 across South Dakota and 3 nationwide. FDIC records list its main office in Eureka, SD and show it operating since 1920. With $150.4 million in total assets on June 30, 2026, it ranks No. 3,326 of 4,232 U.S. banks by total assets. Its main office at 702 7th St dates to 1920 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.

• Main Office main office

  702 7th St, 57437

  Hours: see the bank's site
  DirectionsWebsite

Great Plains Bank: profile, branches and contacts

Banking in Eureka: the local picture

Short answer: 2 banks run 2 branches in Eureka according to the FDIC. A population estimate for this place is not available from the Census Bureau, so branches per resident are not shown.

Of the 2 banks, 1 has its main office in Eureka, 1 elsewhere in South Dakota, according to the FDIC.

The bank with the longest record here is First State Bank of Roscoe, operating since 1903 according to the FDIC. In FDIC branch records, the longest-running branch is Great Plains Bank's office at 702 7th St, dating to 1920; the newest is First State Bank of Roscoe's at 901 7th Street, from 2016.

None of the 2 locations here publishes hours in the sources this page uses. Each branch links to the bank's own site.

Chase, Bank of America and other national banks

Which big national banks have branches in Eureka, and where the nearest one is if they do not.

Short answer: No branches in Eureka: Chase (nearest in Sioux Falls, 209 mi), Wells Fargo (nearest in Mobridge, 42 mi), Bank of America, PNC Bank, U.S. Bank (nearest in Aberdeen, 59 mi), Truist, Fifth Third Bank, Huntington, Regions Bank, TD Bank, BMO (nearest in Gettysburg, 55 mi).

Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Eureka to the nearest branch in South Dakota.

What your savings could earn

National benchmarks and the best published offers, from the Banrox Bank Rates tracker. Enter your own balance and rate to compare.

Short answer: At the national average savings rate of 0.38%, $10,000 kept in savings for a year earns about $38. The best published savings rate in the tracker, 3.75% at CIT Bank, earns about $375. The national average 12-month CD pays 1.71%.

Rates are the banks' published APYs as tracked on the Banrox Bank Rates page, with the date next to each benchmark; they are not offers from Banrox and can change daily. Interest is before tax. The best offers are mostly online banks and are open to Eureka residents like anyone else.

Banks near Eureka

Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.

Short answer: The closest towns with more choice are Bowdle (22 miles) and Mobridge (42 miles). Aberdeen, 60 miles away, has the most banks nearby: 10.

Bank branch openings and closings in Eureka

FDIC branch records, between September 5, 2025 and September 5, 2026.

Short answer: FDIC branch records show no bank branch openings in Eureka between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.

Banks and credit unions based in Eureka

Short answer: 1 institution has its main office in Eureka: Great Plains Bank.

Banks: FDIC BankFind (community-bank flag and assets). Credit unions: NCUA call report.

Largest banks in Eureka by total assets

Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Eureka offices.

Short answer: Great Plains Bank is the largest bank with offices in Eureka, with $150.4 million in total assets on June 30, 2026, No. 3,326 among U.S. banks by total assets. First State Bank of Roscoe is second with $147.5 million. 1 of the 2 bank is headquartered here. Local deposit shares will follow once the FDIC Summary of Deposits is imported.

Total assets and ranks from FDIC BankFind as of June 30, 2026. Rank is among active banks that report total assets to the FDIC.

Banks in Eureka: FAQ

How we build this page

Every figure above comes from one of these sources. Nothing is typed by hand, nothing is estimated.