US Bank Directory
Banks in Groton, MA
3 FDIC-insured banks operate 3 offices in Groton, Massachusetts, and 1 credit union has 1 office.
Source: FDIC BankFind, data as of September 5, 2026; NCUA call report as of March 31, 2026; hours checked October 10, 2026.
Bank branch map: Groton
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: 4 banks and credit unions operate 4 locations in Groton, according to the FDIC and the NCUA. 4 of them have coordinates on record and are on the map. 2 publish opening hours.
Branches: FDIC, NCUA. Streets: loading.
4 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 and credit unions in Groton
Sorted by number of local branches. Each branch shows where its hours and phone number come from.
Short answer: Citizens, Middlesex Savings Bank and Rollstone Bank & Trust have the most locations in Groton, with 1 each. 3 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 Bank · 1
Citizens has 1 branch in Groton, 179 across Massachusetts and 977 nationwide. FDIC records list its main office in Providence, RI and show it operating since 2005. With $232.52 billion in total assets on June 30, 2026, it ranks No. 20 of 4,232 U.S. banks by total assets. The Groton Branch at 163 Main St dates to 1975 in FDIC branch records. It opens on Saturday.
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Groton Branch163 Main St, 01450
All hours
Mon to Fri 9 am to 4 pm; Sat 9 am to 12 pm; Sun not published
Hours: Citizens branch locator (All The Places), checked Oct 10, 2026
Middlesex Savings Bank Bank · 1
Middlesex Savings Bank has 1 branch in Groton, 35 across Massachusetts and 35 nationwide. FDIC records list its main office in Natick, MA and show it operating since 1835. With $6.15 billion in total assets on June 30, 2026, it ranks No. 246 of 4,232 U.S. banks by total assets. The Groton Branch at 112 Boston Rd dates to 1999 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Groton Branch112 Boston Rd, 01450
Rollstone Bank & Trust Bank · 1
Rollstone Bank & Trust has 1 branch in Groton, 8 across Massachusetts and 8 nationwide. FDIC records list its main office in Fitchburg, MA and show it operating since 1846. With $816.3 million in total assets on June 30, 2026, it ranks No. 1,238 of 4,232 U.S. banks by total assets. The Groton Branch at 788 Boston Rd dates to 2019 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.
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Groton Branch788 Boston Rd, 01450
Workers Credit Union Credit union · 1
Workers Credit Union has 1 office in Groton, 13 across Massachusetts. It is based in Littleton, MA and $2.51 billion in assets on March 31, 2026, according to its NCUA call report. It opens on Saturday.
Who can join: see the credit union's site.
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Groton Office308 Main St, 01450
All hours
Mon to Tue not published; Wed 9 am to 5 pm; Thu 9 am to 6 pm; Fri 9 am to 5 pm; Sat 9 am to 1 pm; Sun not published
Hours: NCUA, March 31, 2026
Join a credit union in Groton
1 credit union has 1 office here: Workers Credit Union. Each office is listed above with the phone and the hours it filed with the NCUA (call report as of March 31, 2026). Who can join each one is on its own site; the credit unions in Groton page has every office in the state's directory.
Banking in Groton: the local picture
Short answer: 3 banks run 3 branches in Groton 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 3 banks, 0 have their main office in Groton, 2 elsewhere in Massachusetts and 1 out of state, according to the FDIC.
The bank with the longest record here is Middlesex Savings Bank, operating since 1835 according to the FDIC. In FDIC branch records, the longest-running branch is Citizens's office at 163 Main St, dating to 1975; the newest is Rollstone Bank & Trust's at 788 Boston Rd, from 2019.
The only credit union with an office here is Workers Credit Union.
Of the 2 locations with published hours. 2 open on Saturday. 2 locations have no published hours in these sources.
Banks and credit unions open on Saturday in Groton
Short answer: 2 of the 2 Groton locations with published hours open on Saturday, run by 2 institutions.
- Citizens: 1 of 1 branch (163 Main St: Saturday 9 am to 12 pm)
- Workers Credit Union: 1 of 1 office (308 Main St: Saturday 9 am to 1 pm)
Credit union hours are the text each credit union filed with the NCUA, call report as of March 31, 2026; a day the filing does not mention is shown as not published, never as closed. Bank branches show hours only where the bank publishes them in a source this page uses; 2 of the 4 locations here have no published hours yet. The source and date sit under each office. Banks and credit unions often close on Federal Reserve holidays; call ahead.
Chase, Bank of America and other national banks
Which big national banks have branches in Groton, and where the nearest one is if they do not.
Short answer: No branches in Groton: Chase (nearest in Westford, 7 mi), Wells Fargo (nearest in Boston, 30 mi), Bank of America (nearest in Westford, 7 mi), PNC Bank (nearest in Burlington, 20 mi), U.S. Bank, Truist, Fifth Third Bank, Huntington, Regions Bank, TD Bank (nearest in Acton, 10 mi), BMO.
| Bank | In Groton | Nearest branch if none here |
|---|---|---|
| Chase | None | Westford, 7 miles away |
| Wells Fargo | None | Boston, 30 miles away |
| Bank of America | None | Westford, 7 miles away |
| PNC Bank | None | Burlington, 20 miles away |
| U.S. Bank | None | none in Massachusetts |
| Truist | None | none in Massachusetts |
| Fifth Third Bank | None | none in Massachusetts |
| Huntington | None | none in Massachusetts |
| Regions Bank | None | none in Massachusetts |
| TD Bank | None | Acton, 10 miles away |
| BMO | None | none in Massachusetts |
Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Groton to the nearest branch in Massachusetts.
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%.
| Offer | Bank | APY | Term | Minimum |
|---|---|---|---|---|
| Savings | CIT Bank | 3.75% | none | $5,000 |
| Savings | Barclays | 3.50% | none | $0 |
| Savings | Marcus by Goldman Sachs | 3.40% | none | $0 |
| CD | Synchrony Bank | 4.35% | 60 Months | $0 |
| CD | Marcus by Goldman Sachs | 4.35% | 24 Months | $500 |
| CD | American Express National Bank | 4.25% | 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 Groton residents like anyone else.
Banks near Groton
Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.
Short answer: The closest towns with more choice are Pepperell (5 miles) and Littleton (5 miles). Chelmsford, 10 miles away, has the most banks nearby: 10.
| City | Distance | Banks | Branches |
|---|---|---|---|
| Banks in Pepperell, MA | 5 mi | 2 | 2 |
| Banks in Littleton, MA | 5 mi | 3 | 3 |
| Banks in Westford, MA | 6 mi | 8 | 8 |
| Banks in Tyngsboro, MA | 9 mi | 2 | 2 |
| Banks in Acton, MA | 10 mi | 8 | 8 |
| Banks in Chelmsford, MA | 10 mi | 10 | 11 |
| Banks in Leominster, MA | 11 mi | 9 | 11 |
| Banks in Fitchburg, MA | 12 mi | 4 | 6 |
Bank branch openings and closings in Groton
FDIC branch records, between September 5, 2025 and September 5, 2026.
Short answer: FDIC branch records show no bank branch openings in Groton between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.
Largest banks in Groton by total assets
Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Groton offices.
Short answer: Citizens is the largest bank with offices in Groton, with $232.52 billion in total assets on June 30, 2026, No. 20 among U.S. banks by total assets. Middlesex Savings Bank is second with $6.15 billion. Local deposit shares will follow once the FDIC Summary of Deposits is imported.
| Bank | Total assets | Rank | Offices here | Main office |
|---|---|---|---|---|
| Citizens | $232.52 billion | No. 20 | 1 | Providence, RI |
| Middlesex Savings Bank | $6.15 billion | No. 246 | 1 | Natick, MA |
| Rollstone Bank & Trust | $816.3 million | No. 1,238 | 1 | Fitchburg, MA |
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 Groton: FAQ
How many banks are in Groton, MA?
Groton has 3 banks with 3 branches and 1 credit union with 1 office, according to FDIC data as of September 5, 2026 and NCUA data as of March 31, 2026.
Which bank has the most branches in Groton?
Citizens, with 1. Middlesex Savings Bank has 1 and Rollstone Bank & Trust has 1.
Is there a Citizens in Groton, MA?
Yes. FDIC data lists 1 Citizens branch in Groton as of September 5, 2026. The address and directions are under Citizens above.
Is there a Middlesex Savings Bank in Groton, MA?
Yes. FDIC data lists 1 Middlesex Savings Bank branch in Groton as of September 5, 2026. The address and directions are under Middlesex Savings Bank above.
Is there a Rollstone Bank & Trust in Groton, MA?
Yes. FDIC data lists 1 Rollstone Bank & Trust branch in Groton as of September 5, 2026. The address and directions are under Rollstone Bank & Trust above.
Is there a Chase in Groton, MA?
No. FDIC data lists no Chase branch in Groton as of September 5, 2026. The nearest is in Westford, about 7 miles away in a straight line.
Which banks in Groton are open on Saturday?
Citizens and Workers Credit Union publish Saturday hours for one or more Groton locations. The Saturday section above lists each one with its hours. 2 of the 4 locations here do not publish hours in the sources this page uses; call ahead.
What is the oldest bank in Groton?
Middlesex Savings Bank has the longest record among banks with a branch here: the FDIC shows it operating since 1835.
Which credit unions can I join in Groton?
Workers Credit Union has an office in Groton. Check each credit union's membership rules before you apply.
Did any bank branches open or close in Groton 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 Groton?
Nearby cities with more banks include Pepperell, Littleton, Westford. Pepperell is 5 miles away with 2 banks.
How we build this page
Every figure above comes from one of these sources. Nothing is typed by hand, nothing is estimated.
| Data | Source | License | Updated | Data as of |
|---|---|---|---|---|
| FDIC-insured banks: branches, main offices, total assets, dates established | FDIC BankFind Suite API | Public data (U.S. government) | Monthly import | Sep 5, 2026 |
| Credit union offices, phones and hours as filed with the NCUA, total assets | NCUA call report data | Public data (U.S. government) | Quarterly import | Mar 31, 2026 |
| Map coordinates of 1 credit union offices whose NCUA record has none, from the office address | U.S. Census Bureau Geocoder | Public data (U.S. government) | With each NCUA import | Oct 19, 2026 |
| Bank branch hours, phones and branch pages (1 of 3 branches: Citizens) | The banks' own branch locators, collected by All The Places | CC0 (All The Places data); each bank's locator is the primary source | Weekly spider run, monthly refresh here | Oct 10, 2026 |
| Savings and CD rates, national averages | Banrox Bank Rates | Banrox, from the banks' own rate pages and FDIC national rates | Weekly | see each rate |
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