US Bank Directory

Banks in Castlewood, SD

2 FDIC-insured banks operate 2 offices in Castlewood, South Dakota.

Source: FDIC BankFind, data as of September 5, 2026.

Bank branch map: Castlewood

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 Castlewood, 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.

BankMain office

Branches: FDIC, NCUA. Streets: loading.

2 locations on the map

Tap a cluster to zoom in

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 Castlewood

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

Short answer: First PREMIER Bank and Citizens State Bank, of Arlington have the most locations in Castlewood, 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.

Citizens State Bank, of Arlington 1 branch · main office Arlington, SD Bank · 1

Citizens State Bank, of Arlington has 1 branch in Castlewood, 3 across South Dakota and 3 nationwide. FDIC records list its main office in Arlington, SD and show it operating since 1901. With $153.2 million in total assets on June 30, 2026, it ranks No. 3,302 of 4,232 U.S. banks by total assets. The Castlewood Branch at 108 E Main St dates to 1994 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.

  • Castlewood Branch
    108 E Main St, 57223
    Hours: see the bank's site
Citizens State Bank, of Arlington: profile, branches and contacts
First PREMIER Bank 1 branch · main office Sioux Falls, SD Bank · 1

First PREMIER Bank has 1 branch in Castlewood, 13 across South Dakota and 13 nationwide. FDIC records list its main office in Sioux Falls, SD and show it operating since 1914. With $3.64 billion in total assets on June 30, 2026, it ranks No. 361 of 4,232 U.S. banks by total assets. The Castlewood Branch at Second And Main dates to 1979 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.

  • Castlewood Branch
    Second And Main, 57223
    Hours: see the bank's site
First PREMIER Bank: profile, branches and contacts

Banking in Castlewood: the local picture

Short answer: 2 banks run 2 branches in Castlewood 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, 0 have their main office in Castlewood, 2 elsewhere in South Dakota, according to the FDIC.

The bank with the longest record here is Citizens State Bank, of Arlington, operating since 1901 according to the FDIC. In FDIC branch records, the longest-running branch is First PREMIER Bank's office at Second And Main, dating to 1979; the newest is Citizens State Bank, of Arlington's at 108 E Main St, from 1994.

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 Castlewood, and where the nearest one is if they do not.

Short answer: No branches in Castlewood: Chase (nearest in Sioux Falls, 83 mi), Wells Fargo (nearest in Watertown, 12 mi), Bank of America, PNC Bank, U.S. Bank (nearest in Sioux Falls, 81 mi), Truist, Fifth Third Bank, Huntington, Regions Bank, TD Bank, BMO (nearest in Huron, 63 mi).

BankIn CastlewoodNearest branch if none here
ChaseNoneSioux Falls, 83 miles away
Wells FargoNoneWatertown, 12 miles away
Bank of AmericaNonenone in South Dakota
PNC BankNonenone in South Dakota
U.S. BankNoneSioux Falls, 81 miles away
TruistNonenone in South Dakota
Fifth Third BankNonenone in South Dakota
HuntingtonNonenone in South Dakota
Regions BankNonenone in South Dakota
TD BankNonenone in South Dakota
BMONoneHuron, 63 miles away

Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Castlewood 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%.

Fed Funds Target Range3.75% - 4.00%FOMC, Sep 16 2026
30-Yr Fixed Mortgage Avg6.76%Freddie Mac PMMS, Sep 10 2026
15-Yr Fixed Mortgage Avg6.09%Freddie Mac PMMS, Sep 10 2026
Avg Credit Card APR22.15%Fed G.19, accounts assessed interest, Q2 2026
Best 12-Month CD4.25%Barclays and Popular Direct, Sep 16 2026
Best High-Yield Savings3.95%Bread Savings, Sep 16 2026

One year at this rate earns about $0; at the best published savings rate (3.75%) about $0.

OfferBankAPYTermMinimum
SavingsCIT Bank3.75%none$5,000
SavingsBarclays3.50%none$0
SavingsMarcus by Goldman Sachs3.40%none$0
CDSynchrony Bank4.35%60 Months$0
CDMarcus by Goldman Sachs4.35%24 Months$500
CDAmerican Express National Bank4.25%10 Months$0

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 Castlewood residents like anyone else.

Banks near Castlewood

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

Short answer: The closest towns with more choice are Watertown (13 miles) and Arlington (25 miles). Watertown, 13 miles away, has the most banks nearby: 9.

Bank branch openings and closings in Castlewood

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

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

Largest banks in Castlewood by total assets

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

Short answer: First PREMIER Bank is the largest bank with offices in Castlewood, with $3.64 billion in total assets on June 30, 2026, No. 361 among U.S. banks by total assets. Citizens State Bank, of Arlington is second with $153.2 million. Local deposit shares will follow once the FDIC Summary of Deposits is imported.

BankTotal assetsRankOffices hereMain office
First PREMIER Bank$3.64 billionNo. 3611Sioux Falls, SD
Citizens State Bank, of Arlington$153.2 millionNo. 3,3021Arlington, SD

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 Castlewood: FAQ

How many banks are in Castlewood, SD?

Castlewood has 2 banks with 2 branches, according to FDIC data as of September 5, 2026.

Which bank has the most branches in Castlewood?

First PREMIER Bank, with 1. Citizens State Bank, of Arlington has 1.

Is there a First PREMIER Bank in Castlewood, SD?

Yes. FDIC data lists 1 First PREMIER Bank branch in Castlewood as of September 5, 2026. The address and directions are under First PREMIER Bank above.

Is there a Citizens State Bank, of Arlington in Castlewood, SD?

Yes. FDIC data lists 1 Citizens State Bank, of Arlington branch in Castlewood as of September 5, 2026. The address and directions are under Citizens State Bank, of Arlington above.

Is there a Chase in Castlewood, SD?

No. FDIC data lists no Chase branch in Castlewood as of September 5, 2026. The nearest is in Sioux Falls, about 83 miles away in a straight line.

What is the oldest bank in Castlewood?

Citizens State Bank, of Arlington has the longest record among banks with a branch here: the FDIC shows it operating since 1901.

Did any bank branches open or close in Castlewood in the past year?

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

Where can I find more banks near Castlewood?

Nearby cities with more banks include Watertown, Arlington, Brookings. Watertown is 13 miles away with 9 banks.

How we build this page

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

DataSourceLicenseUpdatedData as of
FDIC-insured banks: branches, main offices, total assets, dates establishedFDIC BankFind Suite APIPublic data (U.S. government)Monthly importSep 5, 2026
Savings and CD rates, national averagesBanrox Bank RatesBanrox, from the banks' own rate pages and FDIC national ratesWeeklysee each rate

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