County banking markets / MT / 30063
MissoulaMontana
FIPS 30063. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 54 counties in Montana’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 (1,270) and unconcentrated on deposits (1,492).
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
19 branch offices and 10 institutions in 1994; 32 and 11 in 2025. Deposits booked in the county went from $707.7M to $3.68B, 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 Interstate Bank cert 1105 | $825.1M | 22.44% | 3 | 9.38% |
| 2 | Glacier Bank cert 30788 | $814.6M | 22.16% | 6 | 18.75% |
| 3 | Stockman Bank of Montana cert 16191 | $440.1M | 11.97% | 3 | 9.38% |
| 4 | Wells Fargo Bank, National Association cert 3511 | $370.4M | 10.07% | 2 | 6.25% |
| 5 | TrailWest Bank cert 23806 | $368.1M | 10.01% | 7 | 21.88% |
| 6 | U.S. Bank National Association cert 6548 | $341.5M | 9.29% | 2 | 6.25% |
| 7 | Bank of Montana cert 58482 | $271.7M | 7.39% | 1 | 3.13% |
| 8 | Opportunity Bank of Montana cert 30182 | $64.7M | 1.76% | 2 | 6.25% |
| 9 | Farmers State Bank cert 342 | $64.7M | 1.76% | 3 | 9.38% |
| 10 | Citizens Alliance Bank cert 1402 | $58.4M | 1.59% | 1 | 3.13% |
| 11 | First Montana Bank, Inc. cert 363 | $57.3M | 1.56% | 2 | 6.25% |
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 Montana, or read the methodology for the two HHI constructions and what they cannot tell you.