Billings, MT
Credit union Rimrock
Rimrock is a federally insured credit union based in Billings, Montana.
- Type
- Credit union
- Charter
- State-chartered, federally insured credit union
- Primary regulator
- NCUA
- Established
- January 1, 1949
- Headquarters
- Billings, MT
- NCUA charter #
- 63183
- Fed RSSD ID
- 604994
$63.5M
Total assets Data as of Q1 2026
$53.7M
Total deposits Data as of Q1 2026
1
Branch locations Data as of Q1 2026
3,252
Members Data as of Q1 2026
1.40%
Return on assets Data as of Q1 2026
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026
Branches by state
Rimrock operates 1 branch location in Montana. Select a state to drill down to its towns and individual branches.
Ownership
Rimrock is not currently recorded under a holding company in the federal data — it appears to be independently held. See its structure & merger history for any past changes.
Other credit unions in Montana
Federally insured credit unions headquartered in Montana, by total assets.
- Whitefish Credit Union Association $2.06B
- Clearwater $1.15B
- Altana $660.2M
- Valley Financial $593.7M
- Rocky Mountain $424.3M
- Park Side Financial $389.1M
- Montana $358.9M
- Intrepid $310.5M
Similar-size credit unions
Institutions close to Rimrock’s $63.5M in assets.
- Tru $63.5M
- St. Josephs Canton Parish $63.6M
- Cosden $63.8M
- Central Keystone $63.8M
- Palmetto First $63.8M
- Kauai Ohana $63.2M