Credit union · NCUA insured
Rimrock Credit Union Savings Rates
Rimrock Credit Union’s best savings rate is 1.00% APY on $10,000, with its Money Market Share Account. Rates checked October 22, 2026.
How Rimrock Credit Union’s savings rates compare
Compared with banks and credit unions near Billings, MT, where Rimrock Credit Union has the most branches. $10,000, best rate first.
This credit union’s best
Rimrock Credit Union
1.00%APY
- Minimum
- $1,000
- Earns on $10,000 a year
- $100
Money Market Share Account
Top rate
Billings Federal Credit Union
2.50%APY
- Minimum
- $5
- Earns on $10,000 a year
- $250
2nd-highest rate
Altana Federal Credit Union
2.00%APY
- Minimum
- —
- Earns on $10,000 a year
- $200
Rimrock Credit Union savings score
85
Savings score
Higher than 69% of U.S. banks and credit unions
- $1,000 balance$1,0001.00%
- $10,000 balance$10,0001.00%
- $100,000 balance$100,0001.00%
- QualifiedQualified1.00%
Each track runs from the lowest to the highest rate among U.S. banks and credit unions; the dot is this rate.Qualified: needs another account or monthly activity.
Where Rimrock Credit Union ranks
By savings score, in each area where it has branches
Every rate
Current savings rates
Rates from the credit union’s website. Earnings assume the rate doesn’t change.
Money Market Share Account
1.00%APY
Dividends compounded monthly based on the average daily balance. Limit of six (6) withdrawals per month. No minimum deposit amount after initial deposit.
| BalanceRequirement | APY | Earns on $10,000 a yearEarns | Requirement |
|---|---|---|---|
| Any balanceDividends compounded monthly based on average daily balance. Limit of six (6) withdrawals per month.Any balance | 1.00% | $100 | Dividends compounded monthly based on average daily balance. Limit of six (6) withdrawals per month. |
Kasasa Saver
0.50%APY
Must link account to one of the Kasasa checking options.
| BalanceRequirement | APY | Earns on $10,000 a yearEarns | Requirement |
|---|---|---|---|
| Any balanceNo monthly service fees and no minimum balance. Requires linking to Kasasa Cash Checking.Any balance | 0.50% | $50 | No monthly service fees and no minimum balance. Requires linking to Kasasa Cash Checking. |
Sources (1)
- rimrockcu.org/kasasa-saver · captured Sep 16, 2026
Reserve Share Account
0.10%APY
| Balance | APY | Earns on $10,000 a yearEarns |
|---|---|---|
| Any balance | 0.10% | $10 |
Sources (1)
- rimrockcu.org/rates · captured Sep 16, 2026
Secondary Share Savings
0.10%APY
| Balance | APY | Earns on $10,000 a yearEarns | Requirement |
|---|---|---|---|
| Up to $25Daily balance $0 - $24.99 | 0.00% | — | Daily balance $0 - $24.99 |
| Up to $2,000Daily balance $25 - $2000 | 0.10% | — | Daily balance $25 - $2000 |
| Over $2,000Daily balance $2000.01 - + | 0.10% | $10 | Daily balance $2000.01 - + |
Sources (1)
- rimrockcu.org/rates · captured Sep 16, 2026
Special-purpose accounts
Coverdell Education Savings
0.35%APY
Start-up fee $10.00; annual maintenance fee $10.00; close account fee $10.00.
| BalanceRequirement | APY | Earns on $10,000 a yearEarns | Requirement |
|---|---|---|---|
| Any balanceDesigned to help pay higher education expenses. Start-up fee $10.00; close account fee $10.00.Any balance | 0.35% | $35 | Designed to help pay higher education expenses. Start-up fee $10.00; close account fee $10.00. |
IRA Share
0.35%APY
Start-up fee $10.00; annual maintenance fee $10.00; close account fee $10.00.
| BalanceRequirement | APY | Earns on $10,000 a yearEarns | Requirement |
|---|---|---|---|
| Any balanceStart-up fee to open an IRA is $10.00; close account fee is $10.00.Any balance | 0.35% | $35 | Start-up fee to open an IRA is $10.00; close account fee is $10.00. |
Sources (3)
All captured Sep 16, 2026
Closed to new customers
Share Savings
0.10%APY
This account is no longer available for new accounts. Membership begins when you open a Share Savings Account.
| Balance | APY | Earns on $10,000 a yearEarns | Requirement |
|---|---|---|---|
| Up to $25Daily balance $0 - $24.99 | 0.00% | — | Daily balance $0 - $24.99 |
| Up to $2,000Daily balance $25 - $2000 | 0.10% | — | Daily balance $25 - $2000 |
| Over $2,000Daily balance $2000.01 - + | 0.10% | $10 | Daily balance $2000.01 - + |
Sources (3)
All captured Sep 16, 2026
Who can join Rimrock Credit Union
This may be incomplete or out of date, so check with the credit union before you apply.
Employers and groups
- Employees of Montana-Dakota Utilities are eligible for membership.
- Employees of SuperValu are eligible for membership.
- Members and employees of unions affiliated with the Yellowstone Valley Central Labor Council are eligible for membership.
- Persons retired as former employees of eligible employers are eligible for membership.
Military, government and schools
- Employees of the City of Billings are eligible for membership.
- Employees of Yellowstone County are eligible for membership.
4 more ways to join
Military, government and schools
- Employees of Yellowstone City-County Health Department are eligible for membership.
- All public employees in all adjoining counties of Yellowstone County are eligible for membership.
Family and household
- Family members of eligible individuals, including spouses, children, step-children, siblings, and grandparents, are eligible for membership.
Other ways
- Licensees of the City of Billings or Yellowstone County (including business license holders or individuals with vehicles registered in Yellowstone County) are eligible for membership.
Cost to join
- Membership begins with opening a Share Savings Account with a minimum deposit of $25.
Membership information collected October 4, 2026.