BANK & CREDIT UNION INTELLIGENCE

Banks in Maricopa County, AZ

55 FDIC-insured banks operate 623 branches in Maricopa County, Arizona, holding $188.62B in total deposits as of the 2026 FDIC Summary of Deposits. Western Alliance Bank leads the market with 27.3% share. Deposit market share is the clearest available measure of competitive position in a local market: it reflects where households and businesses actually keep their money, rather than where institutions advertise or how many branches they operate.

Maricopa County market profile

Understanding a deposit market requires knowing the market itself. These figures come from the US Census Bureau American Community Survey 2024 five-year estimates. Median family income is the measure federal regulators use to define low- and moderate-income thresholds under the Community Reinvestment Act, which is why it is reported here separately from household income.

Population4,559,748
Median family income$105,249
Median home value$452,800
Banks operating in county55
Bank branches623

Deposit market share in Maricopa County

Ranked by deposits held within county borders. A bank's county deposits are the sum across all of its branches in that county, so an institution with several locations appears once. Figures are as of June 30, 2026, the annual reporting date for the FDIC Summary of Deposits.

RankBankDepositsShareBranches
1 Western Alliance Bank $51.50B 27.30% 6
2 JPMorgan Chase Bank, National Association $38.04B 20.17% 121
3 Bank of America, National Association $30.59B 16.22% 76
4 Wells Fargo Bank, National Association $28.18B 14.94% 87
5 PNC Bank, National Association $4.60B 2.44% 52
6 MidFirst Bank $4.42B 2.34% 22
7 U.S. Bank National Association $3.97B 2.11% 44
8 UMB Bank, National Association $3.70B 1.96% 13
9 BMO Bank National Association $3.58B 1.90% 39
10 Zions Bancorporation, N.A. $3.01B 1.60% 16
11 Bell Bank $2.16B 1.15% 4
12 BOKF, National Association $1.80B 0.95% 4
13 Flagstar Bank, National Association $1.12B 0.59% 9
14 Fifth Third Bank, National Association $1.03B 0.54% 12
15 Western State Bank $998.3M 0.53% 6
16 Enterprise Bank & Trust $717.7M 0.38% 5
17 First International Bank & Trust $716.6M 0.38% 4
18 First Fidelity Bank $695.1M 0.37% 6
19 The Northern Trust Company $677.6M 0.36% 2
20 KS StateBank $636.3M 0.34% 1
21 First-Citizens Bank & Trust Company $621.9M 0.33% 4
22 WaFd Bank $560.7M 0.30% 10
23 First American Trust, FSB $545.8M 0.29% 1
24 Bankers Trust Company $476.8M 0.25% 4
25 Sunflower Bank, National Association $442.5M 0.23% 4
26 Goldwater Bank, N.A. $342.9M 0.18% 1
27 Southwest Heritage Bank $309.4M 0.16% 3
28 Alerus Financial, National Association $252.4M 0.13% 2
29 Columbia Bank $242.8M 0.13% 5
30 Busey Bank $239.3M 0.13% 2
31 Gateway Commercial Bank $190.7M 0.10% 1
32 Tradition Capital Bank $182.9M 0.10% 1
33 Commerce Bank $176.1M 0.09% 2
34 Banterra Bank $156.1M 0.08% 4
35 Integro Bank $155.1M 0.08% 1
36 Parkway Bank and Trust Company $153.3M 0.08% 4
37 Sunwest Bank $136.6M 0.07% 1
38 First Western Trust Bank $129.6M 0.07% 2
39 Zenith Bank & Trust $109.8M 0.06% 1
40 BNC National Bank $107.7M 0.06% 1
41 TrustBank $104.7M 0.06% 3
42 Scottsdale Community Bank $99.7M 0.05% 1
43 Stearns Bank National Association $97.5M 0.05% 1
44 First National Bank Texas $97.2M 0.05% 17
45 Academy Bank, National Association $91.1M 0.05% 6
46 Gainey Business Bank $89.7M 0.05% 1
47 Beal Bank USA $79.8M 0.04% 1
48 Bank of Colorado $67.1M 0.04% 2
49 Unison Bank $62.0M 0.03% 1
50 Armed Forces Bank, National Association $55.9M 0.03% 1
51 West Valley National Bank $52.6M 0.03% 2
52 Glacier Bank $50.6M 0.03% 1
53 First Western Bank & Trust $5.0M 0.00% 1
54 USAA Federal Savings Bank — 0.00% 1
55 Wilmington Trust, National Association — 0.00% 1

About this data

The FDIC Summary of Deposits is an annual survey of branch office deposits filed by every FDIC-insured institution as of June 30 each year. It is the authoritative source for local deposit market share and is the dataset regulators use when assessing competitive effects of bank mergers. Because it is annual, it reflects a point in time rather than current balances. Vault republishes it without modification, free to access and free to cite. Available to AI agents at vaultbot.ai/mcp.