Oakland County, Michigan, a core county of the Detroit-Warren-Ann Arbor, MI market, holds $77.4B in deposits across 29 insured institutions and 264 branches. Bank of America is the largest deposit holder at 26.3% share. The top three banks hold 56% of deposits, which places the county in the Moderate band. Deposits have fallen 6.6% since 2021 while the branch count fell by 15.9%. It produced $115.9B of real gross domestic product in 2024, ranking #30 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: 314 in 2021 to 264 in 2026. Institutions: 29 to 29. Top-three share: 54% to 56%.
Institutions by deposits
| Institution | Deposits | Share | 5‑yr deposits |
|---|---|---|---|
| Bank of America | $20.4B | 26.3% | 0% |
| Flagstar Bank | $11.5B | 14.8% | -9% |
| JPMorgan Chase Bank | $11.3B | 14.6% | -6% |
| Fifth Third Bank | $9.7B | 12.5% | -13% |
| PNC Bank | $9.6B | 12.4% | -11% |
| The Huntington National Bank | $7.1B | 9.2% | -6% |
| Citizens Bank | $1.9B | 2.5% | -13% |
| CIBC Bank USA | $1.4B | 1.9% | -19% |
| Oxford Bank | $713M | 0.9% | +31% |
| First Merchants Bank | $658M | 0.9% | -59% |
| Independent Bank | $579M | 0.7% | +80% |
| Citizens State Bank | $464M | 0.6% | no 2021 presence |
| Bank of Ann Arbor | $414M | 0.5% | +62% |
| Waterford Bank | $287M | 0.4% | -10% |
| Huron Valley State Bank | $261M | 0.3% | +28% |
| Mi Bank | $221M | 0.3% | +85% |
| Mercantile Bank | $194M | 0.3% | +82% |
| The Northern Trust Company | $166M | 0.2% | -11% |
| Superior National Bank | $140M | 0.2% | -46% |
| The Farmers & Merchants State Bank | $99M | 0.1% | no 2021 presence |
| Community Unity Bank | $86M | 0.1% | no 2021 presence |
| KeyBank | $62M | 0.1% | -30% |
| ChoiceOne Bank | $59M | 0.1% | -32% |
| Horizon Bank | $34M | <0.1% | -81% |
| First State Bank | $22M | <0.1% | +125% |
| First Community Bank | $16M | <0.1% | +184% |
| Wilmington Trust | $0M | 0.0% | no 2021 presence |
| Wells Fargo Bank | $0M | 0.0% | no 2021 presence |
| CIBC National Trust Company | $0M | 0.0% | no 2021 presence |
The 29 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 Detroit-Warren-Ann Arbor market
Oakland County is one of 10 counties that make up the Detroit-Warren-Ann Arbor, MI market, a Combined Statistical Area (ranked #14 of 293 U.S. markets by economic output). It produces 34.4% of the market’s output and holds 37.6% of its deposits.
| Measure | Oakland County | Share of parent market |
|---|---|---|
| 2024 GDP | $115.9B | 34.4% |
| Deposits | $77.4B | 37.6% |
| Population | 1,288,337 | 23.8% |
View the full Detroit-Warren-Ann Arbor market profile →
Recruiting in Oakland County
Deposits are split among a moderate number of institutions. Who holds the deposits, and how contested the market is, shapes both the runway for growth and the competition you would be recruiting against. We recruit commercial relationship managers, banking teams, and market leaders for banks building in markets like Oakland County.
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