County banking markets / CA / 06079
San Luis ObispoCalifornia
FIPS 06079. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 56 counties in California’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 (1,094) and unconcentrated on deposits (1,371).
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
62 branch offices and 19 institutions in 1994; 55 and 15 in 2025. Deposits booked in the county went from $2.15B to $8.61B, 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 | JPMorgan Chase Bank, National Association cert 628 | $1.84B | 21.40% | 7 | 12.73% |
| 2 | Mechanics Bank cert 1768 | $1.45B | 16.89% | 12 | 21.82% |
| 3 | Pacific Premier Bank, National Association cert 32172 | $1.25B | 14.47% | 7 | 12.73% |
| 4 | Wells Fargo Bank, National Association cert 3511 | $1.20B | 13.89% | 5 | 9.09% |
| 5 | Bank of America, National Association cert 3510 | $1.04B | 12.08% | 3 | 5.45% |
| 6 | U.S. Bank National Association cert 6548 | $491.7M | 5.71% | 4 | 7.27% |
| 7 | American Riviera Bank cert 58281 | $412.1M | 4.79% | 3 | 5.45% |
| 8 | Banc of California cert 24045 | $277.8M | 3.23% | 3 | 5.45% |
| 9 | UMB Bank, National Association cert 8273 | $239.5M | 2.78% | 2 | 3.64% |
| 10 | Bank of the Sierra cert 22597 | $182.4M | 2.12% | 3 | 5.45% |
| 11 | Community West Bank cert 23030 | $70.9M | 0.82% | 2 | 3.64% |
| 12 | Umpqua Bank cert 17266 | $46.9M | 0.54% | 1 | 1.82% |
| 13 | West Coast Community Bank cert 57591 | $41.8M | 0.49% | 1 | 1.82% |
| 14 | Mission Bank cert 34805 | $39.6M | 0.46% | 1 | 1.82% |
| 15 | Murphy Bank cert 25726 | $28.7M | 0.33% | 1 | 1.82% |
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 California, or read the methodology for the two HHI constructions and what they cannot tell you.