County banking markets / AZ / 04013
MaricopaArizona
FIPS 04013. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 15 counties in Arizona’s 2025 survey.
Concentration, 1994–2025
Branch-count HHI squares each institution’s share of the county’s branch offices; deposit HHI squares its share of county deposits. The bands are the 2010 Horizontal Merger Guidelines classification, the dashed line the 1,800 level above which the Federal Reserve reviews a merger centrally. In 2025 this market is unconcentrated on branches (906) and moderately concentrated on deposits (1,609).
Source: FDIC Summary of Deposits | DOJ & FTC, Horizontal Merger Guidelines (2010), section 5.3 | Federal Reserve, Competitive Effects of Mergers and Acquisitions FAQs Both indices computed from the SOD branch rows for this county, June 30 of each survey year. Neither is the Fed's screen HHI: no thrift weighting, no exclusion of specialty and internet banks, no central-booking adjustment. Methodology
Branches and institutions
498 branch offices and 32 institutions in 1994; 627 and 58 in 2025. Deposits booked in the county went from $21.65B to $177.48B, nominal.
Source: FDIC Summary of Deposits FDIC Summary of Deposits, June 30 of each survey year, 1994-2025. Methodology
Who holds the deposits, 2025
Every institution with a branch in the county, ranked by deposits booked here. Both shares are shown because they are the two indices above: squaring and summing the deposit column gives the deposit HHI, the branch column the branch-count HHI.
| # | Institution | Deposits | Deposit share | Branches | Branch share |
|---|---|---|---|---|---|
| 1 | Western Alliance Bank cert 57512 | $45.07B | 25.40% | 6 | 0.96% |
| 2 | JPMorgan Chase Bank, National Association cert 628 | $36.92B | 20.80% | 122 | 19.46% |
| 3 | Wells Fargo Bank, National Association cert 3511 | $28.09B | 15.83% | 87 | 13.88% |
| 4 | Bank of America, National Association cert 3510 | $28.00B | 15.78% | 77 | 12.28% |
| 5 | MidFirst Bank cert 4063 | $4.44B | 2.50% | 22 | 3.51% |
| 6 | BMO Bank National Association cert 16571 | $4.37B | 2.46% | 41 | 6.54% |
| 7 | U.S. Bank National Association cert 6548 | $3.80B | 2.14% | 44 | 7.02% |
| 8 | UMB Bank, National Association cert 8273 | $3.51B | 1.98% | 14 | 2.23% |
| 9 | PNC Bank, National Association cert 6384 | $3.31B | 1.86% | 39 | 6.22% |
| 10 | Zions Bancorporation, N.A. cert 2270 | $2.61B | 1.47% | 16 | 2.55% |
| 11 | BOKF, National Association cert 4214 | $1.93B | 1.09% | 4 | 0.64% |
| 12 | Bell Bank cert 19581 | $1.81B | 1.02% | 5 | 0.80% |
| 13 | FirstBank cert 18714 | $1.28B | 0.72% | 13 | 2.07% |
| 14 | Flagstar Bank, National Association cert 32541 | $1.12B | 0.63% | 9 | 1.44% |
| 15 | Western State Bank cert 9123 | $957.1M | 0.54% | 6 | 0.96% |
| 16 | First Fidelity Bank cert 23473 | $771.2M | 0.43% | 5 | 0.80% |
| 17 | KS StateBank cert 19899 | $650.4M | 0.37% | 1 | 0.16% |
| 18 | The Northern Trust Company cert 913 | $638.7M | 0.36% | 2 | 0.32% |
| 19 | First International Bank & Trust cert 10248 | $613.2M | 0.35% | 4 | 0.64% |
| 20 | Washington Federal Bank cert 28088 | $594.2M | 0.33% | 10 | 1.59% |
| 21 | Bankers Trust Company cert 953 | $541.3M | 0.31% | 4 | 0.64% |
| 22 | Comerica Bank cert 983 | $533.2M | 0.30% | 12 | 1.91% |
| 23 | Enterprise Bank & Trust cert 27237 | $523.8M | 0.30% | 2 | 0.32% |
| 24 | First-Citizens Bank & Trust Company cert 11063 | $522.7M | 0.29% | 4 | 0.64% |
| 25 | First American Trust, FSB cert 26312 | $496.1M | 0.28% | 1 | 0.16% |
| 26 | Sunflower Bank, National Association cert 4767 | $466.9M | 0.26% | 4 | 0.64% |
| 27 | Southwest Heritage Bank cert 29087 | $342.4M | 0.19% | 3 | 0.48% |
| 28 | Alerus Financial, National Association cert 3931 | $307.9M | 0.17% | 2 | 0.32% |
| 29 | Goldwater Bank, N.A. cert 58405 | $293.0M | 0.17% | 1 | 0.16% |
| 30 | FineMark National Bank & Trust cert 58486 | $266.9M | 0.15% | 2 | 0.32% |
| 31 | Parkway Bank and Trust Company cert 19008 | $218.3M | 0.12% | 4 | 0.64% |
| 32 | Tradition Capital Bank cert 58057 | $210.3M | 0.12% | 1 | 0.16% |
| 33 | Busey Bank cert 16450 | $206.5M | 0.12% | 1 | 0.16% |
| 34 | Gateway Commercial Bank cert 58678 | $179.7M | 0.10% | 1 | 0.16% |
| 35 | First Western Trust Bank cert 57607 | $142.1M | 0.08% | 2 | 0.32% |
| 36 | Pacific Premier Bank, National Association cert 32172 | $139.4M | 0.08% | 1 | 0.16% |
| 37 | Sunwest Bank cert 20164 | $136.9M | 0.08% | 1 | 0.16% |
| 38 | First Interstate Bank cert 1105 | $122.3M | 0.07% | 3 | 0.48% |
| 39 | Integro Bank cert 59283 | $115.6M | 0.07% | 1 | 0.16% |
| 40 | Banterra Bank cert 17514 | $114.5M | 0.06% | 4 | 0.64% |
| 41 | Stearns Bank National Association cert 10988 | $110.7M | 0.06% | 1 | 0.16% |
| 42 | First National Bank Texas cert 3285 | $89.3M | 0.05% | 17 | 2.71% |
| 43 | Zenith Bank & Trust cert 59318 | $86.1M | 0.05% | 1 | 0.16% |
| 44 | Beal Bank USA cert 57833 | $83.6M | 0.05% | 1 | 0.16% |
| 45 | TrustBank cert 14662 | $81.0M | 0.05% | 3 | 0.48% |
| 46 | BNC National Bank cert 57197 | $79.7M | 0.04% | 1 | 0.16% |
| 47 | Unison Bank cert 19396 | $76.6M | 0.04% | 1 | 0.16% |
| 48 | Academy Bank, National Association cert 19600 | $71.5M | 0.04% | 6 | 0.96% |
| 49 | Umpqua Bank cert 17266 | $69.2M | 0.04% | 3 | 0.48% |
| 50 | Scottsdale Community Bank cert 59203 | $68.5M | 0.04% | 1 | 0.16% |
| 51 | Gainey Business Bank cert 59273 | $58.7M | 0.03% | 1 | 0.16% |
| 52 | West Valley National Bank cert 58426 | $56.9M | 0.03% | 3 | 0.48% |
| 53 | Glacier Bank cert 30788 | $54.5M | 0.03% | 1 | 0.16% |
| 54 | Armed Forces Bank, National Association cert 4666 | $50.2M | 0.03% | 1 | 0.16% |
| 55 | Bank of Colorado cert 16980 | $44.6M | 0.03% | 2 | 0.32% |
| 56 | Meadows Bank cert 58722 | $20.8M | 0.01% | 1 | 0.16% |
| 57 | Wilmington Trust, National Association cert 34069 | $0K | 0.00% | 1 | 0.16% |
| 58 | USAA Federal Savings Bank cert 32188 | $0K | 0.00% | 1 | 0.16% |
Source: FDIC Summary of Deposits June 30, 2025. Branch rows grouped by FDIC certificate; names as reported to the survey. Deposit share is n/a where the county's total SOD deposits are zero. Methodology
Back to county banking markets, up to Arizona, or read the methodology for the two HHI constructions and what they cannot tell you.