NCUA-insured credit union
Westmark
Credit Union headquartered in Idaho Falls, Idaho.
Source: NCUA call report data, data as of March 31, 2026, fetched September 5, 2026
Headquarters and contact
| Address | P.O. Box 2869 Idaho Falls, ID 83403 |
| County | Bonneville |
| Website | not published in NCUA data |
| Phone | (208) 528-8315 |
NCUA record
| NCUA Charter | 68353 |
| Federal Reserve RSSD ID | 478494 |
| Status | Active |
| Charter type | 2 (STATE) |
| Financials as of | March 31, 2026 |
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.
See how your odds compare before you apply at Westmark.
Offices
| Eastside Branch main office Idaho Falls, ID |
2520 Channing Way, 83404 (208) 528-8315 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Saturday Lobby and Drive-thru 9:00 to 1:00 |
| Blackfoot Branch Blackfoot, ID |
575 Jensen Grove Dr, 83221 (208) 785-0404 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| Parkcenter Boise, ID |
871 E Parkcenter Blvd, 83706 (208) 433-3905 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| Eagle Branch Eagle, ID |
54 Eagle River St, 83616 (208) 938-0044 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| Sunnyside Idaho Falls, ID |
3040 Outlet Blvd, 83402 (208) 522-3199 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| Westside Branch Idaho Falls, ID |
2160 W Broadway St, 83402 (208) 523-1101 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| Science Center Branch Idaho Falls, ID |
1385 Fremont Ave, 83402 (208) 523-2109 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| First Street Branch Idaho Falls, ID |
815 1St St, 83401 (208) 523-1071 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Saturday Lobby and Drive-thru 9:00 to 1:00 |
| Silverstone Branch Meridian, ID |
1650 S Eagle Rd, 83642 (208) 884-2400 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Saturday - Lobby Closed Saturday - Drive-thru 9:00 to 1:00 |
| Ten Mile Meridian, ID |
4640 N Ten Mile Rd, 83646 (208) 888-1103 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| Idaho Center Branch Nampa, ID |
6034 Birch Ln, 83687 (208) 465-7717 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Closed Saturday |
| Pocatello Branch Pocatello, ID |
333 W Alameda Rd, 83201 (208) 233-0725 Monday - Friday Lobby and Drive-thru 9:00 - 5:30 Saturday Lobby and Drive-thru 9:00 to 1:00 |
15 offices in total. Browse them by city through the state pages.
Where Westmark has offices
Other credit unions headquartered in Idaho Falls
| Frontier | $810.23 million |
| Members Preferred | $60.32 million |