Bank · FDIC insured
First Interstate Bank
A $25.8B bank, the 83rd largest of 4,207, headquartered in Billings, MT, with 273 branches in 10 states. Best rates: CDs 0.01% and savings 0.25% APY.
First Interstate Bank Carrot Score
61
Carrot Score
Higher than 3% of U.S. banks and credit unions
#58 of 61 in Omaha, NE-IA metroHow the score works →
Deposits are federally insured by the FDIC up to $250,000 per depositor.
About First Interstate Bank
- Headquarters
- 401 N 31st St, Billings, MT 59101
- FDIC certificate
- 1105 ↗
Branches
273 branches in 10 states
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South Dakota
46 branchesIowa
45 branchesMontana
43 branchesOregon
33 branchesNebraska
29 branchesIdaho
20 branchesColorado
19 branchesWashington
17 branchesWyoming
15 branches
Casper area · 3
- Casper Downtown Branch104 S Wolcott St, Casper, WY 82601Directions
- Casper East Branch4901 E 2nd St, Casper, WY 82609Directions
- Casper Mills Branch300 Sw Wyoming Blvd, Mills, WY 82644Directions
Cheyenne area · 2
- Cheyenne Del Range Branch4612 Rue Terre, Cheyenne, WY 82009Directions
- Cheyenne Downtown Branch401 W 19th St, Cheyenne, WY 82001Directions
Gillette area · 2
- Gillette Downtown Branch222 S Gillette Ave, Gillette, WY 82716Directions
- Gillette South Branch2801 S Douglas Hwy, Gillette, WY 82718Directions
Jackson area · 2
- Jackson Downtown Branch120 E Broadway Ave, Jackson, WY 83001Directions
- Jackson Main Branch802 W Broadway Ave, Jackson, WY 83001Directions
Riverton area · 2
- Lander Branch8118 Highway 789, Lander, WY 82520Directions
- Riverton Branch323 E Main St, Riverton, WY 82501Directions
Sheridan area · 2
- Sheridan Downtown Branch4 S Main St, Sheridan, WY 82801Directions
- Sheridan Sugarland Branch1613 Coffeen Ave, Sheridan, WY 82801Directions
Buffalo area · 1
- Buffalo Branch40 E Hart St, Buffalo, WY 82834Directions
Laramie area · 1
- Laramie Downtown Branch221 E Ivinson Ave, Laramie, WY 82070Directions
Missouri
6 branchesWalk-in offices from the FDIC directory as of September 4, 2026. Directions open Google Maps. A nearby branch doesn’t mean you can join or open an account.
Financial details
| Measure | This bank | Peers’ middle | Strongest quarter |
|---|---|---|---|
| CapitalLeverage ratio | 9.42% | 9.97% | 10.85% or more |
| Troubled loansNoncurrent | 1.12% | 0.70% | 0.47% or less |
| ProfitabilityReturn on assets | 1.21% | 1.23% | 1.55% or more |
| LendingLoans per $100 deposited | $66 | $85 | — |
- CapitalLeverage ratio9.42%Peers’ middle 9.97% · Top 25% 10.85%+
- Troubled loansNoncurrent1.12%Peers’ middle 0.70% · Top 25% ≤0.47%
- ProfitabilityReturn on assets1.21%Peers’ middle 1.23% · Top 25% 1.55%+
- LendingLoans per $100 deposited$66Peers’ middle $85
Compared with the 164 banks with $10 billion or more in assets. The strongest quarter is what the best 25% of them reach: more capital and profit, fewer troubled loans. Lending has no better end.Troubled loans are noncurrent: 90 or more days late, or no longer earning interest.
Regulators’ own ratings of First Interstate Bank are confidential. These figures are what it reports to the FDIC each quarter, set beside its peers; they aren’t a rating.