NSB Bank
✓ FDIC-insured · Active FDIC Certificate #8094
NSB Bank is an FDIC-insured state-chartered bank that is not a Federal Reserve member (supervised by the FDIC), headquartered in Mason City, Iowa, established in 1933. As of the 06/30/2026 FDIC call report, it reported $461M in total assets and $401M in deposits. FDIC location data lists 6 offices in Iowa. The FDIC classifies it as a community bank. It is owned by the holding company NORTHWOOD FINL SERVICES CORP (Northwood, IA).
Financial data as of the 06/30/2026 FDIC call report.
Where it operates
All 6 of NSB Bank's FDIC-listed offices are in Iowa. Browse banks in Mason City for other local options.
Branch locations
| NSB Bank Titonka Branch · Full Service - Brick And Mortar | 173 Main St N Titonka, IA 50480 Map ↗ |
| NSB Bank Northwood Branch · Full Service - Brick And Mortar | 900 Central Ave Northwood, IA 50459 Map ↗ |
| NSB Bank Regency Branch · Full Service - Brick And Mortar | 451 S Illinois Ave Mason City, IA 50401 Map ↗ |
| NSB Bank Thompson Branch · Full Service - Brick And Mortar | 11723 Highway 9 Thompson, IA 50478 Map ↗ |
| NSB Bank Forest City Branch · Full Service - Brick And Mortar | 101 Highway 69 N Forest City, IA 50436 Map ↗ |
| NSB Bank Nsb Bank · Full Service - Brick And Mortar | 2650 4th St Sw Mason City, IA 50401 Map ↗ |
Holding company: NORTHWOOD FINL SERVICES CORP
The FDIC lists NORTHWOOD FINL SERVICES CORP, based in Northwood, IA, as the top holding company for NSB Bank. The FDIC shows no other active insured banks under the same holding company.
Similar-size banks in Iowa
Active FDIC-insured banks headquartered in Iowa with total assets closest to NSB Bank's $461M. See all banks in Iowa.
| Bank | HQ city | Assets | Offices |
|---|---|---|---|
| Peoples Bank | Clive | $530M | 8 |
| The Shelby County State Bank | Harlan | $524M | 11 |
| Iowa Trust & Savings Bank | Emmetsburg | $522M | 4 |
| Ohnward Bank & Trust | Cascade | $499M | 6 |
| Grinnell State Bank | Grinnell | $499M | 4 |
| TruBank | Indianola | $495M | 8 |
| Security State Bank | Sutherland | $492M | 5 |
| Raccoon Valley Bank | Perry | $486M | 4 |
NSB Bank: common questions
Is NSB Bank FDIC-insured?
Yes. NSB Bank is an active FDIC-insured institution, FDIC Certificate #8094. Deposits are insured up to $250,000 per depositor, per ownership category. You can confirm this on FDIC BankFind.
Where is NSB Bank headquartered?
NSB Bank is headquartered at 2650 4th St Sw, Mason City, IA 50401, according to FDIC records.
How many branches does NSB Bank have?
FDIC location data lists 6 offices for NSB Bank, all in Iowa.
Who owns NSB Bank?
The FDIC lists NORTHWOOD FINL SERVICES CORP of Northwood, IA as the top holding company for NSB Bank.
Source: FDIC BankFind Suite (institution, location, and call report data). BankNearMe.com does not rank or rate banks.