Bank
First Interstate Bank
First Interstate Bank is a community bank primarily serving the Western United States, offering a full range of FDIC-insured banking services, including personal and business loans, mortgages, and wealth management.
Key Statistics
As of December 2025, public records show First Interstate Bank has originated approximately $1.8B in loan volume over the past 12 months, with an average loan size of $456k.
Volume (12mo)
$1.8B
Avg Loan Size
$456k
Total Mortgages
151,657
Total Borrowers
9,249
Lending Entities
First Interstate Bank funds loans through the following entities. These are the legal entities that appear on recorded mortgage documents.
103,217 mortgages recorded
48,328 mortgages recorded
+7 more not shown
Geography
First Interstate Bank's lending activity is concentrated in the following states, based on recorded mortgage data from the past 12 months.
Mortgages (12mo): 715
Volume (12mo): $353.7M
Total Volume: $13.9B
Mortgages (12mo): 354
Volume (12mo): $125.8M
Total Volume: $10.0B
Mortgages (12mo): 338
Volume (12mo): $285.1M
Total Volume: $3.5B
Top Borrowers
The following individuals have the most recorded mortgage transactions with First Interstate Bank. Click on a borrower to view their full investor profile.
+9,246 more not shown
FAQ
What type of lender is First Interstate Bank?
First Interstate Bank is classified as an bank based on our research. Banks are FDIC-insured depository institutions offering a range of mortgage products. They have a mix of business (15%) and personal loans in their portfolio.
What entities does First Interstate Bank fund loans under?
First Interstate Bank originates mortgages through 9 different lending entities. The most common include First Interstate Bank and Great Western Bank. These are the legal entity names that appear on recorded mortgage documents.
Where is First Interstate Bank most active?
Based on recorded mortgages, First Interstate Bank is most active in Montana, Wyoming, and Oregon.
How many loans has First Interstate Bank originated?
Public records show 151,657 mortgages recorded for First Interstate Bank, with $1.8B in volume over the past 12 months.
What is the average loan size for First Interstate Bank?
The average mortgage size for First Interstate Bank is $456k based on all recorded mortgages.
Does First Interstate Bank offer short-term loans?
First Interstate Bank primarily offers long-term financing, with only 10% of loans being short-term.
How is this data collected?
Elementix aggregates mortgage data from public county records across the United States. We use AI to normalize lender names, identify aliases, and connect borrowers to their lending relationships.