First Interstate Bank: 2025 mortgage rates, costs & approvals
How First Interstate Bank priced and approved home loans in 2025, measured against every lender in the official HMDA records.
HMDA legal name: First Interstate Bank · LEI 549300RFSMIRUODUVW59
In 2025, First Interstate Bank originated 327 home-purchase, refinance and cash-out loans on owner-occupied single-family homes in 13 states — 936th by volume among the 2,017 lenders profiled here.
On conventional 30-year fixed purchase loans its median rate was 6.75% (all lenders: 6.625%); its median rate spread was 24 basis points above the national median. Median conventional loan costs were $4,140, 26% lower than the national median ($5,570).
It denied 27.8% of completed home-purchase applications (all lenders: 8.5%).
How First Interstate Bank priced home-purchase loans
| Purchase loans, 2025 | First Interstate Bank | All lenders |
|---|---|---|
| 30-year fixed rate · conventional | 6.750% | 6.625% |
| 30-year fixed rate · FHA | 6.125% | 6.250% |
| 30-year fixed rate · VA | — | 6.125% |
| 15-year fixed rate · conventional | — | 5.875% |
| Rate spread vs. APOR · conventional | +0.37 pts | +0.13 pts |
| Total loan costs · conventional | $4,140 | $5,570 |
| Total loan costs · FHA | $6,900 | $11,310 |
| Total loan costs · VA | — | $6,490 |
| Origination charges (all types) | $1,100 | $1,860 |
| Borrowers paying discount points | 33.7% | 51.3% |
| Points paid, when paid (% of loan) | 0.63% | 0.87% |
| Borrowers receiving lender credits | 37.7% | 33.1% |
Medians shown with at least 20 loans. A lender's numbers reflect its borrowers (credit, down payment, loan size, location) as well as its pricing; HMDA has no credit scores. Rate spread = APR minus the average prime offer rate on the lock date, which removes most of the effect of when the rate was locked.
Loan mix and borrowers
By loan type
By purpose
Why First Interstate Bank denied purchase applications
First reason the lender reported for each denied home-purchase application.
Where First Interstate Bank lends
| State | Loans | Applications | Purchase denial rate | 30-yr rate* | Loan costs* |
|---|---|---|---|---|---|
| Montana | 83 | 126 | 32.6% | 6.750% | $5,540 |
| Iowa | 62 | 86 | 23.4% | 6.750% | $2,810 |
| South Dakota | 61 | 89 | 21.7% | 6.875% | $3,480 |
| Wyoming | 60 | 83 | 26.7% | 6.625% | $3,780 |
| Nebraska | 19 | 37 | 42.9% | — | — |
| Oregon | 16 | 21 | 25.0% | — | — |
| Idaho | 9 | 14 | — | — | — |
| Washington | 5 | 10 | — | — | — |
| Missouri | 4 | 7 | — | — | — |
| Arizona | 4 | 4 | — | — | — |
| Minnesota | 2 | 2 | — | — | — |
| North Dakota | 2 | 2 | — | — | — |
| Colorado | 0 | 1 | — | — | — |
*Conventional home-purchase loans, medians with at least 20 loans. Linked state names open First Interstate Bank's page for that state.
Counties where First Interstate Bank is a top lender
| County | Rank | Loans | Market share |
|---|---|---|---|
| Potter County, SD | 3 | 3 | 17.6% |
| Haakon County, SD | 8 | 1 | 11.1% |
| Brule County, SD | 4 | 3 | 10.0% |
| Grant County, SD | 2 | 6 | 7.5% |
| Walworth County, SD | 7 | 2 | 5.9% |
| Worth County, MO | 8 | 1 | 5.9% |
| Fallon County, MT | 10 | 1 | 5.9% |
| Rosebud County, MT | 7 | 2 | 5.3% |
| Oliver County, ND | 10 | 1 | 5.0% |
| Teton County, WY | 6 | 7 | 4.4% |
| Mercer County, MO | 14 | 1 | 4.3% |
| Spink County, SD | 12 | 1 | 4.2% |
| Clark County, SD | 8 | 1 | 3.6% |
| Park County, MT | 9 | 7 | 3.4% |
| Phillips County, MT | 14 | 1 | 3.2% |
Check First Interstate Bank yourself
- FFIEC HMDA Data Browser — the official 2025 records filed under LEI 549300RFSMIRUODUVW59.
- NMLS Consumer Access — confirm the company and loan officer are licensed in your state.
- CFPB Consumer Complaint Database — search complaints by company name.
- Compare your Loan Estimate from First Interstate Bank with similar 2025 loans.
This is a statistical profile, not a review or recommendation. HMDA data alone cannot show whether a lender complies with fair-lending laws, and a lender's medians depend on the borrowers it serves.
Lenders of similar size
Source: FFIEC/CFPB HMDA 2025 public LAR and filer list. Core segment: owner-occupied, single-family site-built, first-lien, closed-end purchase and refinance loans. Methodology