10 banks and credit unions have branches in Grimes. The Bank Fee Index holds published fees for 6 of them.
The count includes institutions based elsewhere that have a branch here.
Compared with Iowa
Where a fee has enough institutions for a local median, the Grimes median is within 10% of the Iowa median on all 1 fee.
Grimes counts institutions with a branch here, wherever headquartered. Iowa counts institutions headquartered in the state.
Pick a fee to compare Grimes with Iowa and the U.S. Each amount below links to the fee schedule it was read from, and an empty cell says why.
Four published overdraft fees: $27–$36.
Medians for reference: Iowa $30 · U.S. $30
Local median not shown; five institutions required.
10 institutions, 4 with a published overdraft fee.
Bank · based in Norwalk, IA · 1 branch here
Account not yet known
“Overdraft charge of $27 per item imposed for overdrafts created by checks, in-person withdrawals, ACH, Point-of-Sale, ATM withdrawals, or by other electronic means”
Bank · based in Des Moines, IA · 1 branch here
Bank · based in Perry, IA · 1 branch here
Bank · based in Johnston, IA · 1 branch here
Bank · based in Ames, IA · 1 branch here
Bank · based in West Des Moines, IA · 1 branch here
Account not yet known
“Overdraft Item Paid (“OD ITEM PAID FEE”) … $27.00/item/presentment*”
Bank · based in Cincinnati, OH · 1 branch here
Account not yet known
“• U.S. Bank will charge an Overdraft Paid Fee of $36.00 for each overdraft item we pay on your behalf. Whether we”
Credit union, membership rules apply · based in Johnston, IA · 1 branch here
Credit union, membership rules apply · based in Dubuque, IA · 1 branch here
Credit union, membership rules apply · based in North Liberty, IA · 1 branch here
Account not yet known
“OD Privilege* (Overdrafts - Created by check, | $29.00/Item**”
Largest banks by local bank deposits
Share of the $301 million in bank deposits at branches here, FDIC Summary of Deposits 2026. Credit unions report no deposits by branch.
County context: Polk County
Deposits and branches cover the City of Grimes. Population and income cover Polk County, the county with most of Grimes's bank branches, not the city alone. This is background. None of it sets or explains a fee.
Bank deposits
Change at branches here, 2021 to 2026
Bank branches
Change in branch count, 2016 to 2026
Population
Change between the 2022 and 2024 Census estimates
Median household income
Census estimate, 2024
Deposits and branches: FDIC Summary of Deposits, 2026 and earlier years. Population and income: Census American Community Survey 5-year estimates for Polk County.
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