FDIC-insured bank
NSB Bank
Bank headquartered in Mason City, Iowa, part of NORTHWOOD FINL SERVICES CORP.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 2650 4th St Sw Mason City, IA 50401 |
| County | Cerro Gordo |
| Metro area | Mason City, IA |
| Website | www.nsbbank.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 8094 |
| Federal Reserve RSSD ID | 253646 |
| Status | Active |
| Charter class | NM (STATE) |
| Holding company | NORTHWOOD FINL SERVICES CORP |
| Domestic offices | 6 |
| Financials as of | June 30, 2026 |
Routing number
FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.nsbbank.com.
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Offices nearest to headquarters
| Nsb Bank main office Mason City, IA |
2650 4th St Sw, 50401 |
| Regency Branch Mason City, IA |
451 S Illinois Ave, 50401 |
| Northwood Branch Northwood, IA |
900 Central Ave, 50459 |
| Forest City Branch Forest City, IA |
101 Highway 69 N, 50436 |
| Thompson Branch Thompson, IA |
11723 Highway 9, 50478 |
| Titonka Branch Titonka, IA |
173 Main St N, 50480 |