Sentinel Credit Union

Box Elder, South Dakota
Last verified: August 4, 2026
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Verified rate book

Current Sentinel Credit Union rates

4 published offers verified as of August 4, 2026.

How we verify rates

Auto & vehicle rates

1 offer
Sentinel Credit Union auto & vehicle rates as of August 4, 2026
ProductPublishedRateTerm / conditionStatus
Auto Loanauto4.450% APR4.450%—Standard

HELOC rates

2 offers
Sentinel Credit Union heloc rates as of August 4, 2026
ProductPublishedRateTerm / conditionStatus
HELOC (Variable)heloc_variable6.500% APR6.500%—Standard
Home Equity Loan (Fixed)heloc_fixed8.150% APR8.150%—Standard

Personal loan rates

1 offer
Sentinel Credit Union personal loan rates as of August 4, 2026
ProductPublishedRateTerm / conditionStatus
Unsecured Personal Loanpersonal_unsecured10.500% APR10.500%—Standard

Auto loans available from 4.45% APR. HELOC rates from 6.5% APR. Personal loan rates from 10.5% APR.

Source: RateAPI.dev, verified from Sentinel Credit Union's official website

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About Sentinel Credit Union

Institution facts reported to the National Credit Union Administration for Invalid Date.

Members
9.9K
Assets
$197M
Founded
1955
Locations reported
8
NCUA charter
10257
Charter type
Federal credit union

Services and member support

  • Online membership application
  • Online loan application
  • Open an account online
  • Electronic statements
  • Mobile check deposit
  • Mobile payments
  • Financial counseling
  • Financial education

Source: NCUA quarterly call report. Services are institution-reported; confirm availability with the credit union.

Other credit unions with branches nearby

Compare membership, services, and rates from other institutions with an NCUA-reported branch nearby.

AspenMain Office · Rapid City · SD · 57701About 5.6 miles awayBlack Hills5th & Minnesota Member Service Center · Rapid City · SD · 57701About 5.6 miles awayDakota Star1636 E St Patrick St · Rapid City · SD · 57701About 5.6 miles awayHighmarkHighmark Main Office · Rapid City · SD · 57701About 5.6 miles awayInterfaithSouth Dakota · Rapid City · SD · 57701About 5.6 miles awayMinutemanMINUTEMAN FCU · RAPID CITY · SD · 57701-1458About 5.6 miles away

Nearest-first estimates use the center of your Census ZIP area and NCUA-reported branch locations. Distances are straight-line estimates, not driving distance.

Who Can Join Sentinel Credit Union

Membership eligibility from Sentinel Credit Union's own published criteria. How we verify this.

Community charter: live/work in Pennington, Lawrence, Meade +6 more, SD

  • LocationPennington, Lawrence, Meade, Custer, Lyman, Todd, Tripp, Gregory, Mellette — SD

Cost to join: About $5.

Verified from Sentinel Credit Union's membership page. Final membership determination is always made by the credit union.

Work at Sentinel Credit Union?

This page is seen by prospective members comparing rates — and by the AI assistants they ask. Claim this profile to correct or update rates, add missing products, and get your free rate scorecard showing where Sentinel Credit Union ranks against South Dakota peers.

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Frequently Asked Questions

What rates does Sentinel Credit Union offer?

Sentinel Credit Union currently offers Auto loan, HELOC, and personal loan rates. The rates shown on this page were last verified August 4, 2026 directly from the credit union's official website.

How often are Sentinel Credit Union rates updated?

RateAPI verifies Sentinel Credit Union's rates daily by scraping its official website, then normalizing the data. The figures on this page were last verified August 4, 2026.

Where does RateAPI get Sentinel Credit Union's rate data?

Rate data is collected directly from Sentinel Credit Union's official website. RateAPI has no pay-to-rank incentives; see the methodology page for how rates are collected and normalized.

What are Sentinel Credit Union's auto loan rates?

As of August 4, 2026, Sentinel Credit Union offers auto loans from 4.45% APR.

What is Sentinel Credit Union's HELOC rate?

As of August 4, 2026, Sentinel Credit Union offers home equity lines of credit from 6.5% APR.

What is Sentinel Credit Union's personal loan rate?

As of August 4, 2026, Sentinel Credit Union offers personal loans from 10.5% APR.

Related Rate Data

Compare Sentinel Credit Union's rates against national credit-union benchmarks.

More South Dakota credit unionsAuto loan rate benchmarkHELOC ratesPersonal loan ratesHow we verify rates

Source Information

Rate data is scraped directly from the credit union's official website and verified daily by our automated systems.

View Original Source

Methodology

Learn how we collect, normalize, and verify rate data with full transparency and no pay-to-rank incentives.

View Methodology

Track Sentinel Credit Union rates

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Use it via API

Access this data programmatically with our REST API

terminal
# Get rates for Sentinel Credit Union
curl "https://api.rateapi.dev/credit-unions/south-dakota/sentinel" \
  -H "Authorization: Bearer YOUR_API_KEY"
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