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Napa County, CA Bank Deposit Market Share

JPMorgan Chase Bank, N.A. holds the largest share of deposits in Napa County, CA, 18.1%, followed by Wells Fargo Bank, N.A. (17.7%) and Bank of America, N.A. (17.2%). 13 institutions hold $4.34B at 32 offices as of June 30, 2026, up 0.7% from 2025.

Institutions: 13 Offices: 32 Deposits: $4.34B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Farmers & Merchants Bank of Central California (0.59 points); Bank of Marin (0.50 points); Poppy Bank (0.32 points).

Lost: Westamerica Bank (-0.68 points); Wells Fargo Bank, N.A. (-0.40 points); Bank of America, N.A. (-0.25 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 JPMorgan Chase Bank, N.A. 3 $785.1M 18.09% -0.05 pts 0.4%
2 Wells Fargo Bank, N.A. 4 $770.3M 17.74% -0.40 pts -1.5%
3 Bank of America, N.A. 3 $746.9M 17.21% -0.25 pts -0.7%
4 Columbia Bank 3 $396.6M 9.14% -0.23 pts -1.8%
5 Bank of Marin 2 $345.6M 7.96% +0.50 pts 7.4%
6 BMO Bank N.A. 4 $288.0M 6.64% -0.13 pts -1.2%
7 Westamerica Bank 6 $272.7M 6.28% -0.68 pts -9.1%
8 Mechanics Bank 2 $205.7M 4.74% -0.13 pts -2.1%
9 Poppy Bank 1 $204.8M 4.72% +0.32 pts 8.1%
10 U.S. Bank N.A. 1 $193.1M 4.45% +0.23 pts 6.2%
11 Farmers & Merchants Bank of Central California 1 $57.7M 1.33% +0.59 pts 82.1%
12 Bank of Stockton 1 $54.1M 1.25% -0.08 pts -5.4%
13 First-Citizens Bank & Trust Company 1 $20.2M 0.47% +0.31 pts 200.4%

About this list

Deposits are those held at each institution's offices in Napa County as of June 30, 2026, from the FDIC Summary of Deposits, whatever state the institution is headquartered in. Market share is the institution's deposits divided by all deposits in the market. Shares are by bank charter, not rolled up to the holding company, and cover FDIC-insured institutions only, so credit unions are not included. Each office is placed in its county and metro area by the FDIC branch directory; the few offices the directory does not list are left out of the market and of every share.

Share change compares the institution's share in 2025 and 2026 in percentage points. Deposit change compares its deposits here in the two years and includes deposits that moved through mergers and branch sales; "New" means it had no offices here a year earlier. Offices that closed during the year are placed by their ZIP code or city.

Wider markets

California deposits by institution Napa, CA metro area California bank directory

Other counties in California

Los Angeles CountySan Francisco CountySanta Clara CountyOrange CountySan Diego CountySacramento CountyAlameda CountyContra Costa CountyRiverside CountySan Mateo CountySan Bernardino CountyVentura CountySonoma CountyFresno CountyMarin CountySan Joaquin CountyPlacer CountySanta Barbara CountyMonterey CountyStanislaus CountyKern CountySan Luis Obispo CountySanta Cruz CountyTulare CountyButte CountySolano CountyYolo CountyShasta CountyEl Dorado CountyMerced CountySutter CountyNevada CountyHumboldt CountyImperial CountyMendocino CountyMadera CountyKings CountyTuolumne CountySan Benito CountySiskiyou County

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