GREAT WESTERN BANK
Routing Number: 304971987
100 NORTH PHILIPS AVENUE
SIOUX FALLS, SD 57104-0000
(605) 334-2548
3510 West Sturgis Road
Rapid City, SD 57701
1200 Lacrosse Street
Rapid City, SD 57701
106 East 7th Ave
Redfield, SD 57469
Main Street
Rosholt, SD 57260
3405 South Sycamore Avenue
Sioux Falls, SD 57103
200 East 10th Street
Sioux Falls, SD 57104
5100 West 26th Street
Sioux Falls, SD 57110
2101 W. 41st Street, Suite 10
Sioux Falls, SD 57105
234 North Sycamore Avenue
Sioux Falls, SD 57110
3209 South Louise Avenue
Sioux Falls, SD 57106
5000 South Louise Avenue
Sioux Falls, SD 57108
5521 E. 12th Street Office
Sioux Falls, SD 57110
510 Main Street
Spearfish, SD 57783
2825 1st Avenue
Spearfish, SD 57783
Highways 212 And 81
Watertown, SD 57201
35 1st Avenue, N.E.
Watertown, SD 57201
1201 29th Street Se
Watertown, SD 57201
1301 Main Street
Webster, SD 57274
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You can use Key Bank routing number on your check. You should be able to locate a nine digits at the bottom left of your check. You can call Key bank to verify.
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The ABA number for American Savings Bank is 242272625. For customers making wire transfers, our routing information is as follows: Great Lakes Bankers Bank ABA 044002051 Credit Account #1002588 Please call for further details.
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