FDIC-insured bank
Grinnell State Bank
Bank headquartered in Grinnell, Iowa, part of GRINNELL BANCSHARES INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 814 4th Ave Grinnell, IA 50112 |
| County | Poweshiek |
| Website | www.grinnell.bank |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 11347 |
| Federal Reserve RSSD ID | 783246 |
| Status | Active |
| Charter class | NM (STATE) |
| Holding company | GRINNELL BANCSHARES INC |
| Domestic offices | 4 |
| 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.grinnell.bank.
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Offices nearest to headquarters
| Grinnell State Bank main office Grinnell, IA |
814 4th Ave, 50112 |
| Marengo Branch Marengo, IA |
1101 Court Ave, 52301 |
| Johnston Branch Johnston, IA |
5601 Merle Hay Rd, 50131 |
| Polk City Branch Polk City, IA |
205 Broadway St, 50226 |