Middlesex County, NJ

Middlesex County, New Jersey, a core county of the New York-Newark, NY-NJ-CT-PA market, holds $56.1B in deposits across 41 insured institutions and 215 branches. PNC Bank is the largest deposit holder at 31.0% share. The top three banks hold 49% of deposits, which places the county in the Moderate band. Deposits have grown 11.9% since 2021 while the branch count fell by 10.4%. It produced $70.0B of real gross domestic product in 2024, 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: 240 in 2021 to 215 in 2026. Institutions: 40 to 41. Top-three share: 52% to 49%.

Institutions by deposits

The 41 insured institutions with a branch presence in this county, per the FDIC Summary of Deposits, June 30, 2026. Five-year change compares the same institution’s county deposits in 2021 and 2026. 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 2021 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.

View the full New York-Newark market profile →