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 branches
Sioux Falls area · 12
- Brandon Branch1305 E Cedar St, Brandon, SD 57005Directions
- Crooks Branch210 N West Ave, Crooks, SD 57020Directions
- Dell Rapids Branch408 N Highway 77, Dell Rapids, SD 57022Directions
- Hartford Branch202 West Highway 38, Hartford, SD 57033Directions
- Lennox Branch209 S Main St, Lennox, SD 57039Directions
- Sioux Falls - West 26th Street Branch5100 W 26th St, Sioux Falls, SD 57106Directions
- Sioux Falls Downtown Branch225 S Main Ave, Sioux Falls, SD 57104Directions
- Sioux Falls E. 10th St. Branch3717 E 10th St, Sioux Falls, SD 57103Directions
- Sioux Falls N. Cliff Ave. Branch4914 N Cliff Ave, Sioux Falls, SD 57104Directions
- Sioux Falls S. Cliff Ave. Branch4800 S Cliff Ave, Sioux Falls, SD 57103Directions
- Sioux Falls S. Louise Ave. Branch5000 S Louise Ave, Sioux Falls, SD 57108Directions
- Sioux Falls W. 41st St. Branch4901 W 41st St, Sioux Falls, SD 57106Directions
Rapid City area · 9
- Custer Branch648 Mount Rushmore Rd, Custer, SD 57730Directions
- Hill City Branch351 East Main Street, Hill City, SD 57745Directions
- New Underwood Branch404 S A Ave, New Underwood, SD 57761Directions
- Rapid City Downtown Branch14 Saint Joseph St, Rapid City, SD 57701Directions
- Rapid City East Branch847 N Creek Dr, Rapid City, SD 57703Directions
- Rapid City Gateway Branch333 West Blvd, Rapid City, SD 57701Directions
- Rapid City Sturgis Road Branch3510 Sturgis Rd, Rapid City, SD 57702Directions
- Sturgis Branch1200 Main St, Sturgis, SD 57785Directions
- Wall Branch418 Main St, Wall, SD 57790Directions
Spearfish area · 4
- Deadwood Branch152 Sherman St, Deadwood, SD 57732Directions
- Lead Branch145 Glendale Dr, Lead, SD 57754Directions
- Spearfish Lookout Mountain Branch311 N 27th St, Spearfish, SD 57783Directions
- Spearfish Main Branch1400 North Ave, Spearfish, SD 57783Directions
Aberdeen area · 2
- Aberdeen East Branch1805 6th Ave Se, Aberdeen, SD 57401Directions
- Aberdeen West Branch119 6th Ave Se, Aberdeen, SD 57401Directions
Watertown area · 2
- Watertown 5th St. S.E. Branch624 5th St Se, Watertown, SD 57201Directions
- Watertown Uptown Branch35 1st Ave Ne, Watertown, SD 57201Directions
Belle Fourche area · 1
- Belle Fourche Branch41 5th Ave, Belle Fourche, SD 57717Directions
Brookings area · 1
- Brookings Branch1302 6th St, Brookings, SD 57006Directions
Chamberlain area · 1
- Chamberlain Branch101 E King St, Chamberlain, SD 57325Directions
Edgemont area · 1
- Edgemont Branch501 2nd Ave, Edgemont, SD 57735Directions
Freeman area · 1
- Freeman Branch117 E 4th St, Freeman, SD 57029Directions
Gettysburg area · 1
- Gettysburg Branch111 N East St, Gettysburg, SD 57442Directions
Hot Springs area · 1
- Hot Springs Branch343 S Chicago St, Hot Springs, SD 57747Directions
Madison area · 1
- Madison Branch301 N Egan Ave, Madison, SD 57042Directions
McIntosh area · 1
- Mcintosh Branch217 Main St, McIntosh, SD 57641Directions
Milbank area · 1
- Milbank Branch302 S Main St, Milbank, SD 57252Directions
Mitchell area · 1
- Mitchell Branch714 S Burr St, Mitchell, SD 57301Directions
Mobridge area · 1
- Mobridge Branch505 N Main St, Mobridge, SD 57601Directions
Morristown area · 1
- Morristown Branch302 Main St, Morristown, SD 57645Directions
Redfield area · 1
- Redfield Branch106 E 7th Ave, Redfield, SD 57469Directions
Rosholt area · 1
- Rosholt Branch1 W Main St, Rosholt, SD 57260Directions
Webster area · 1
- Webster Branch1301 Main St, Webster, SD 57274Directions
Yankton area · 1
- Yankton Branch2408 Broadway Ave, Yankton, SD 57078Directions
Iowa
45 branchesMontana
43 branchesOregon
33 branchesNebraska
29 branchesIdaho
20 branchesColorado
19 branchesWashington
17 branchesWyoming
15 branchesMissouri
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.