# POLK COUNTY BANK

> **Failed bank** · JOHNSTON, IA · failed 2011-11-18 · State commercial bank, non-Federal Reserve member (FDIC-supervised) · FDIC cost $16M

## What happened

POLK COUNTY BANK of JOHNSTON, IA was closed by regulators on **2011-11-18**. The FDIC was named receiver.

**Resolution:** Purchase & Assumption — acquiring bank assumed deposits + bought assets

Deposits were transferred to **GRINNELL STATE BANK** (GRINNELL, IA). Customers became depositors of the acquiring bank automatically.


## Key facts

- **FDIC ID:** 3979
- **FDIC Certificate:** 14194
- **FDIC FIN:** 10414
- **Bank name:** POLK COUNTY BANK
- **Location:** JOHNSTON, IA
- **Failure date:** 2011-11-18
- **FDIC resolution date:** 2011-11-18
- **Charter type:** State commercial bank, non-Federal Reserve member (FDIC-supervised)
- **Resolution type:** Purchase & Assumption — acquiring bank assumed deposits + bought assets
- **Estimated FDIC DIF cost:** $16M
- **Deposits at failure:** $82M
- **Assets at failure:** $92M
- **Acquiring bank:** GRINNELL STATE BANK (GRINNELL, IA)

## Primary source

FDIC BankFind failed-bank search: https://banks.data.fdic.gov/explore/failures?searchName=POLK%20COUNTY%20BANK

## Citation

> US Federal Deposit Insurance Corporation, BankFind failed-bank database, POLK COUNTY BANK (FDIC ID 3979), failed 2011-11-18. Retrieved via AI Analytics 2026-05-16 from https://api.ai-analytics.org/failed-bank/3979.

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*[FDIC failures dataset](/datasets/fdic-failures) · CC0 1.0*