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Yellowstone County, MT Bank Deposit Market Share

First Interstate Bank holds the largest share of deposits in Yellowstone County, MT, 24.6%, followed by U.S. Bank N.A. (19.8%) and Stockman Bank of Montana (17.1%). 12 institutions hold $7.43B at 47 offices as of June 30, 2026, up 0.3% from 2025.

Institutions: 12 Offices: 47 Deposits: $7.43B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Stockman Bank of Montana (1.33 points); U.S. Bank N.A. (0.76 points); The Yellowstone Bank (0.59 points).

Lost: First Interstate Bank (-2.00 points); Wells Fargo Bank, N.A. (-1.41 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 First Interstate Bank 10 $1.82B 24.56% -2.00 pts -7.3%
2 U.S. Bank N.A. 4 $1.47B 19.76% +0.76 pts 4.3%
3 Stockman Bank of Montana 6 $1.27B 17.13% +1.33 pts 8.7%
4 Glacier Bank 7 $895.4M 12.06% +0.11 pts 1.2%
5 Wells Fargo Bank, N.A. 4 $894.6M 12.05% -1.41 pts -10.2%
6 The Yellowstone Bank 5 $678.2M 9.13% +0.59 pts 7.2%
7 Opportunity Bank of Montana 3 $107.5M 1.45% -0.04 pts -2.7%
8 Little Horn State Bank 1 $105.7M 1.42% +0.22 pts 19.1%
9 Bravera Bank 3 $93.1M 1.25% +0.34 pts 37.5%
10 JPMorgan Chase Bank, N.A. 2 $48.8M 0.66% +0.06 pts 10.9%
11 First Federal Bank & Trust 1 $39.3M 0.53% +0.04 pts 8.1%
12 Davidson Trust Co. 1 $0 <0.01% 0.00 pts New

About this list

Deposits are those held at each institution's offices in Yellowstone 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

Montana deposits by institution Billings, MT metro area Montana bank directory

Other counties in Montana

Gallatin CountyFlathead CountyMissoula CountyLewis And Clark CountyCascade CountyRavalli CountyCuster CountySilver Bow CountyHill CountyLake CountyRichland CountyPark CountyFergus CountyBeaverhead CountyLincoln CountyValley CountySanders CountyRoosevelt CountyDawson CountyBig Horn CountyMadison CountyRosebud CountySheridan CountyStillwater CountyPhillips CountyCarbon CountyPondera CountyTeton CountyGlacier CountyToole CountyPowell CountySweet Grass CountyDeer Lodge CountyFallon CountyChouteau CountyDaniels CountyJefferson CountyBroadwater CountyBlaine CountyJudith Basin County

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