Community Banking Hours & Locations

Founding Office
112 South Main Street
P.O. Box 188
Onsted, Michigan 49265
PH 517-467-2144
FAX 517-467-4712
OSB 24 Hour ATM Location

 Office Hours: Monday-Friday 8:30AM-5:00PM
Drive-thru Only: Saturday 8:30AM-12:00PM 

Main Office
417 S. Main St.
PO Box 738
Brooklyn, MI 49230
PH 517-592-3205
FAX 517-592-3188
OSB 24 Hour ATM Location

Office Hours: Monday-Friday 8:30AM-5:00PM
Drive-thru Only: Saturday 8:30AM-12:00PM 

Clarklake Office
3101 Jefferson Rd.
P.O. Box 68
Clarklake, Michigan 49234
PH 517-529-9439
FAX 517-529-4656
OSB 24 Hour ATM Location

Office Hours: Monday-Friday 8:30AM-5:00PM
Drive-thru Only: Saturday 8:30AM-12:00PM

To find an Allpoint ATM that you can use Surcharge free, click on the  "Free ATM Locator" link

on our Main Page in the "Financial Services" box.