County banking markets / WY / 56005
CampbellWyoming
FIPS 56005. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 23 counties in Wyoming’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 (1,389) and moderately concentrated on deposits (2,255).
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
6 branch offices and 4 institutions in 1994; 12 and 9 in 2025. Deposits booked in the county went from $271.6M to $1.41B, 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 | First National Bank of Gillette cert 18880 | $521.0M | 36.93% | 3 | 25.00% |
| 2 | First Interstate Bank cert 1105 | $354.5M | 25.13% | 2 | 16.67% |
| 3 | Wells Fargo Bank, National Association cert 3511 | $138.6M | 9.82% | 1 | 8.33% |
| 4 | Security State Bank cert 12592 | $99.7M | 7.07% | 1 | 8.33% |
| 5 | Pinnacle Bank - Wyoming cert 2232 | $99.6M | 7.06% | 1 | 8.33% |
| 6 | First Northern Bank of Wyoming cert 2208 | $89.8M | 6.36% | 1 | 8.33% |
| 7 | Buffalo Federal Bank cert 29696 | $54.0M | 3.83% | 1 | 8.33% |
| 8 | U.S. Bank National Association cert 6548 | $34.9M | 2.47% | 1 | 8.33% |
| 9 | ANB Bank cert 19220 | $18.7M | 1.33% | 1 | 8.33% |
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 Wyoming, or read the methodology for the two HHI constructions and what they cannot tell you.