GNB Bank
Headquarters: Grundy Center, Iowa
Overview
GNB Bank is an FDIC-insured bank headquartered in Grundy Center, Iowa. It reported $621.33M in assets and $497.95M in deposits for the period ending June 30, 2026. Bankular currently lists 10 branch locations.
What Bankular checked
These dates identify the official records and review steps supporting this profile.
Quarterly change
What changed since the previous report
March 31, 2026 to June 30, 2026
These comparisons use consecutive official regulatory reporting periods. A change is descriptive and is not a recommendation or safety rating.
Financial indicators
Capital, profitability and credit quality
These are the latest reported capital, profitability and credit-quality measures available for this institution. Read the figures together rather than as a single safety rating.
Branch footprint
Where GNB Bank has branches
Explore the cities with the most currently listed locations. Branch hours can change, so confirm current lobby, drive-through and appointment hours with the institution before visiting.
Locations
Find a branch of GNB Bank
Ackley Branch
308 Sherman Ave, Ackley, Iowa, 50601
Full-service branch · Opened January 1, 1934
Conrad Office
103 E Center St, Conrad, Iowa, 50621
Full-service branch · Opened December 2, 2005
Insurance & Investments
603 7th St, Grundy Center, Iowa, 50638
Limited Service: Administrative · Opened October 1, 1906
Address and directions →Iowa Falls Downtown
315 Main St, Iowa Falls, Iowa, 50126
Full-service branch · Opened May 4, 2012
Main Office
529 G Ave, Grundy Center, Iowa, 50638
Full-service branch · Opened March 16, 1934
Manchester Branch
300 E Main St, Manchester, Iowa, 52057
Full-service branch · Opened January 2, 1945
Financial overview
Latest reported figures
Through June 30, 2026
Financial trends
How the balance sheet has changed
Compare recent quarters to see the direction of assets, deposits and loans.
| Quarter | Assets | Deposits | Net loans | ROA |
|---|---|---|---|---|
| June 30, 2026 | $621.33M | $497.95M | $440.49M | 1.68% |
| March 31, 2026 | $609.23M | $514.53M | $439.73M | 1.53% |
| December 31, 2025 | $630.72M | $494.54M | $451.37M | 1.48% |
| September 30, 2025 | $625.38M | $515.63M | $450.30M | 1.52% |
| June 30, 2025 | $626.78M | $498.24M | $447.10M | 1.33% |
| March 31, 2025 | $609.45M | $507.18M | $435.01M | 1.13% |
| December 31, 2024 | $629.26M | $497.55M | $436.23M | 1.14% |
| September 30, 2024 | $629.99M | $507.17M | $435.13M | 1.12% |
Size and reach
How this institution compares
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More on GNB Bank
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Branch locations
10 listed locations.
Explore →Compare this institution
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Explore →State banking market
Explore institutions and deposit-market context in Iowa.
Explore →Grundy Center banking market
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Explore →Rankings and research
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Explore →Sources and methodology
Review the official sources and reporting periods.
Explore →Frequently asked questions
Is GNB Bank federally insured?
Yes. Bankular identifies this institution in FDIC records under certificate 14079.
Where is GNB Bank headquartered?
GNB Bank is headquartered in Grundy Center, Iowa, at 529 G Ave, Grundy Center, Iowa, 50638.
How large is GNB Bank?
It reported $621.33M in assets and $497.95M in deposits for the period ending June 30, 2026.
How many locations does GNB Bank have?
Bankular currently lists 10 branch locations for this institution.
Data sources and methodology
Bankular combines official regulatory records with institution-published product information. The detailed sources are available below for readers who want to verify a figure.