Middlesex County, NJ

Middlesex County, New Jersey, a core county of the New York-Newark, NY-NJ-CT-PA market, holds $50.8B in deposits across 41 insured institutions and 217 branches. PNC Bank, National Association is the largest deposit holder at 29.7% share. The top three institutions hold 48.7% of deposits, which places the county in the moderately concentrated band. Deposits have grown 12.1% since 2020 while the branch count fell by 12.9%. It produces $70.0B of output, ranking #60 of the 1,523 ranked counties by economic output.

Ranks show where the county stands among the 1,523 ranked counties (those within a Combined or Metropolitan Statistical Area that have a branch). They describe relative position, not a rating of market quality or suitability.

Deposit trend

Branches: 249 in 2020 to 217 in 2025. Institutions: 40 to 41. Top-three share: 52.7% to 48.7%.

Institutions by deposits

The 41 insured institutions with a branch presence in this county, as of June 30, 2025. Five-year change compares the same institution’s county deposits in 2020 and 2025. Institutions are tracked by FDIC certificate number, and where an institution acquired another bank, the acquired bank’s prior deposits are folded into the baseline so the change reflects the combined, continuing franchise rather than reading as new. “No 2020 presence” means neither the institution nor a bank it later absorbed reported deposits in this county that year. Deposit figures are nominal and are not adjusted for inflation.

Part of the New York-Newark market

Middlesex County is one of 30 counties that make up the New York-Newark, NY-NJ-CT-PA market, a Combined Statistical Area (ranked #1 of 293 U.S. markets by economic output). It produces 3.3% of the market’s output and holds 1.8% of its deposits.

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