Banks in Contra Costa County, California

FDIC-insured institutions in Contra Costa County held $50.7 billion in deposits as of June 30, 2026, according to the FDIC.

31 FDIC-insured institutions held $50.7 billion in deposits in 171 offices in Contra Costa County at June 30, 2026; Wells Fargo Bank, National Association held the most, 29.0% of the county's.

Contra Costa County, June 30, 2026

$50.7 billion
Deposits in the county: $50,704,019,000; At June 30, 2026, against $51.6 billion a year before, each year's own dollars.; 31
Institutions with deposits: FDIC-insured banks and savings institutions with an office here that reported deposits.; 171
Offices: Every office the survey lists here, against 170 in 2025.; 29.0%
The largest share: Wells Fargo Bank, National Association, with $14.7 billion in 26 offices.

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FDIC-insured institutions with an office in Contra Costa County, California, by deposits there at June 30, 2026, each with its share of the county's $50.7 billion
Rank	Institution	Offices	Deposits	Share	Deposits, 2025
1	Wells Fargo Bank, National Association	26	$14.7 billion	29.0%	$16.1 billion
2	JPMorgan Chase Bank, National Association	30	$8.4 billion	16.6%	$8.3 billion
3	Bank of America, National Association	20	$6.9 billion	13.5%	$7.2 billion
4	BMO Bank National Association	12	$5.6 billion	11.1%	$6.0 billion
5	Mechanics Bank	15	$3.2 billion	6.2%	$2.9 billion
6	Citibank, National Association	12	$2.3 billion	4.6%	$2.4 billion
7	U.S. Bank National Association	13	$1.6 billion	3.1%	$1.6 billion
8	California Bank of Commerce, National Association	1	$1.3 billion	2.5%	$1.2 billion
9	Citizens Business Bank, National Association	2	$1.1 billion	2.2%	No office
10	City National Bank	1	$1.1 billion	2.1%	$1.1 billion
11	Fremont Bank	4	$1.0 billion	2.0%	$930.2 million
12	Pacific Coast Bankers' Bank	1	$653.0 million	1.3%	$439.3 million
13	Farmers & Merchants Bank of Central California	3	$431.2 million	0.9%	$441.7 million
14	Fifth Third Bank, National Association	3	$334.9 million	0.7%	No office
15	Commercial Bank of California	1	$236.1 million	0.5%	$212.1 million
16	Poppy Bank	3	$211.2 million	0.4%	$178.8 million
17	Westamerica Bank	3	$206.2 million	0.4%	$213.9 million
18	Columbia Bank	3	$204.4 million	0.4%	$205.8 million
19	PNC Bank, National Association	2	$204.1 million	0.4%	$224.1 million
20	BAC Community Bank	4	$198.9 million	0.4%	$199.2 million
21	First Bank	2	$132.1 million	0.3%	$142.3 million
22	First-Citizens Bank & Trust Company	1	$129.7 million	0.3%	$170.2 million
23	United Business Bank	1	$112.2 million	0.2%	$112.3 million
24	Cathay Bank	1	$108.6 million	0.2%	$111.7 million
25	Tri Counties Bank	1	$104.6 million	0.2%	$72.6 million
26	Summit Bank	1	$80.8 million	0.2%	$80.5 million
27	Bank of Stockton	1	$48.0 million	0.1%	$48.4 million
28	Zions Bancorporation, N.A.	1	$46.7 million	0.1%	$51.5 million
29	Five Star Bank	1	$38.4 million	0.1%	No office
30	Gateway Bank, F.S.B.	1	$33.5 million	0.1%	$3.9 million
31	Monet Bank	1	$7.2 million	< 0.1%	$7.8 million

An institution with no office in the county in 2025 shows none for that year; a name is the survey’s for 2026, and one without a link has no page because it did not file a Call Report for the newest quarter.

Sources

FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey — Federal Deposit Insurance Corporation · Public domain — U.S. Government work · retrieved September 27, 2026

Compiled automatically from FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 30, 2026

Contra Costa County, June 30, 2026

Each institution’s share of the county’s deposits

Sources