7 banks and credit unions have branches in Merrimack. The Bank Fee Index holds published fees for 6 of them.
The count includes institutions based elsewhere that have a branch here.
Largest gap from New Hampshire
Merrimack counts institutions with a branch here, wherever headquartered. New Hampshire counts institutions headquartered in the state.
Merrimack
5 institutions with a branch here
$2
New Hampshire
8 institutions headquartered in New Hampshire
$1
U.S.
1,649 institutions in the index
$1.50
Chosen as the fee whose Merrimack median sits furthest from New Hampshire's in percentage terms, among fees at least 5 local institutions publish.
Pick a fee to compare Merrimack with New Hampshire and the U.S. Each amount below links to the fee schedule it was read from, and an empty cell says why.
Published amounts here run from $15 to $35.
Median published overdraft fee
Merrimack
6 institutions with a branch here
$32.50
New Hampshire
12 institutions headquartered in New Hampshire
$30
U.S.
2,600 institutions in the index
$30
Merrimack covers every institution with a branch here, wherever it is headquartered. New Hampshire covers institutions headquartered in the state. U.S. covers every institution in the Bank Fee Index.
7 institutions, 6 with a published overdraft fee.
Bank · based in Wilmington, DE · 1 branch here
Account not yet known
“$35 fee per overdraft”
Bank · based in Providence, RI · 1 branch here
Account not yet known
“Overdraft Fee | $35 Per item paid if your account is overdrawn”
Bank · based in Franklin, NH · 1 branch here
Account not yet known
“Overdraft (NSF) Fees and Returned Item (NSF) Fees $35.00 per item presented”
Bank · based in Buffalo, NY · 1 branch here
Account not yet known
“Overdraft Fee | $15.00 for each overdraft item we pay, unless one of the following exceptions apply:”
Bank · based in Merrimack, NH · 1 branch here
Credit union, membership rules apply · based in Marlborough, MA · 1 branch here
Account not yet known
“$15.00 Paid - Nonsufficient Funds1 (Overdraft Item Paid)”
Credit union, membership rules apply · based in Nashua, NH · 1 branch here
Account not yet known
“Non Sufficient Funds including Courtesy Pay (NSF fee charge) $30”
Largest banks by local bank deposits
Share of the $388 million in bank deposits at branches here, FDIC Summary of Deposits 2026. Credit unions report no deposits by branch.
County context: Hillsborough County
Deposits and branches cover the City of Merrimack. Population and income cover Hillsborough County, the county with most of Merrimack'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 Hillsborough County.
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