First Interstate Bank mortgage approval rate & lending review
First Interstate Bank decided 4,495 mortgage applications and funded 3,176 loans across the 616 counties Fat Boy Data covers, 2023–2025.
These are the decisions First Interstate Bank reported under the Home Mortgage Disclosure Act, not its advertised interest rates.
First Interstate Bank at a glance
Approval is 0.6 points above the 72.0% national rate for the same mix of loan types.
Approval rates by loan type
| Loan type | Approval | Approved | Taken up | Typical loan | Loans made |
|---|---|---|---|---|---|
| Mortgage lenders | 79% | 593 / 755 | 98% | $325K | 584 |
| Home improvement loans | 68% | 1,422 / 2,078 | 96% | $95K | 1,370 |
| Cash-out refinance | 66% | 72 / 109 | 100% | $155K | 72 |
| Refinance | 75% | 875 / 1,166 | 98% | $105K | 854 |
| Investment property purchase | 87% | 212 / 244 | 99% | $295K | 210 |
| Investment refinance | 73% | 45 / 62 | 98% | $255K | 44 |
| Investment home improvement | 54% | 37 / 69 | 97% | $105K | 36 |
First Interstate Bank lending by state
| State | Approval | Typical loan | Decided | Loans made |
|---|---|---|---|---|
| Montana | 76% | $105K | 1,272 | 944 |
| Oregon | 72% | $95K | 780 | 546 |
| Idaho | 72% | $105K | 636 | 448 |
| South Dakota | 74% | $65K | 400 | 289 |
| Nebraska | 69% | $55K | 382 | 255 |
| Washington | 59% | $135K | 257 | 147 |
| Iowa | 70% | $85K | 213 | 147 |
| Wyoming | 83% | $205K | 213 | 173 |
| Colorado | 71% | $155K | 157 | 107 |
| Arizona | 63% | $115K | 129 | 78 |
Fat Boy Data covers 616 counties, 79.6% of the US population, not every county in every state. States with fewer than 20 decisions are not listed.Methodology.
Where First Interstate Bank lends most
| County | Loan type | Approval | Decided | Loans made |
|---|---|---|---|---|
| Missoula County, MT | Home improvement loans | 82% | 165 | 132 |
| Deschutes County, OR | Home improvement loans | 69% | 178 | 120 |
| Jackson County, OR | Home improvement loans | 71% | 168 | 115 |
| Missoula County, MT | Refinance | 87% | 136 | 114 |
| Ada County, ID | Home improvement loans | 73% | 149 | 107 |
| Flathead County, MT | Home improvement loans | 66% | 154 | 97 |
| Minnehaha County, SD | Home improvement loans | 73% | 135 | 92 |
| Gallatin County, MT | Home improvement loans | 72% | 123 | 85 |
| Deschutes County, OR | Refinance | 72% | 120 | 85 |
| Yellowstone County, MT | Home improvement loans | 68% | 112 | 75 |
| Kootenai County, ID | Home improvement loans | 64% | 107 | 67 |
| Ada County, ID | Refinance | 75% | 84 | 63 |
The county markets where First Interstate Bank made the most loans. Each link opens that market with every lender ranked.
Questions about First Interstate Bank
What is First Interstate Bank's mortgage approval rate?
First Interstate Bank approved 72.6% of the 4,495 mortgage applications it decided across the 616 counties Fat Boy Data covers, 2023–2025, 0.6 points above the 72.0% national rate for the same mix of loan types.
How often do borrowers take the loan First Interstate Bank offers?
Borrowers accepted 97% of the loans First Interstate Bank approved, against 93% for all home improvement loan lenders nationally. A low take-up usually means the approved terms were not competitive.
What size loans does First Interstate Bank make?
The typical home improvement loan loan First Interstate Bank made was $95K; across all loan types its typical loan ran from $95K to $325K. HMDA reports amounts in $10,000 brackets, so these are midpoints.
Where does First Interstate Bank lend?
First Interstate Bank decided applications in 19 of the states Fat Boy Data covers, most of them in Montana, Oregon and Idaho.
Can I apply to First Interstate Bank directly?
Yes. First Interstate Bank is a bank or credit union with 273 branches in the FDIC and NCUA registries, and it takes mortgage applications directly.
Does this page show First Interstate Bank's interest rates?
No. HMDA filings record who applied, who was approved and how much was borrowed, not the rate offered. Use the approval rate and take-up here to judge how First Interstate Bank treats applications, then get a rate quote from the lender.