NCUA-insured credit union
Highmark — Rapid City, SD
Credit Union headquartered in Rapid City, South Dakota.
Source: NCUA call report data, data as of March 31, 2026, fetched September 5, 2026
Headquarters and contact
| Address | Po Box 2506 Rapid City, SD 57709 |
| County | Pennington |
| Website | not published in NCUA data |
| Phone | (605) 716-4444 |
NCUA record
| NCUA Charter | 4122 |
| Federal Reserve RSSD ID | 460079 |
| Status | Active |
| Charter type | 1 (NCUA) |
| Financials as of | March 31, 2026 |
How to find your Highmark routing number
NCUA does not publish ABA routing numbers, and many credit unions use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this credit union, the "account details" screen in its online banking, or its official website.
Share one credit line with people you trust. Everyone gets their own limit.
Offices
| Highmark Main Office main office Rapid City, SD |
725 5Th St, 57701 (605) 716-4444 7:30 - 5:30 Monday - Friday 8:00 - 12:00 Saturday |
| Belle Fourche Branch Belle Fourche, SD |
1842 5Th Ave, 57717 (605) 892-4631 9 am - 5 pm Monday - Friday |
| Custer Branch Custer, SD |
302 Mount Rushmore Rd, 57730 (605) 673-4444 9:00 - 4:00 Monday - Friday |
| Spearfish Branch Spearfish, SD |
309 W Jackson Blvd, 57783 (605) 716-4444 9:00 AM to 5:00 PM |
| Gillette Branch Gillette, WY |
2717 S Douglas Hwy, 82718 (307) 696-6032 9 AM to 5 PM |
Where Highmark has offices
Cities with the most Highmark offices
Other credit unions headquartered in Rapid City
| Black Hills | $2.37 billion |
| Aspen | $167.16 million |
| Dakota Star | $46.47 million |
| Rushmore Electric | $29.20 million |
| Minuteman | $16.27 million |
| Dacotah | $11.07 million |
Largest credit unions headquartered elsewhere in South Dakota
| Dakotaland Huron | $739.56 million |
| Levo Sioux Falls | $526.57 million |
| Voyage Sioux Falls | $282.43 million |
| Bluestone Sioux Falls | $212.57 million |
| Service First Sioux Falls | $210.05 million |
| Area Aberdeen | $200.24 million |
| Sentinel Box Elder | $197.02 million |
| Northern Hills Sturgis | $196.60 million |
Compare before you open an account: today's CD and savings rates, the CD calculator and the savings calculator.
