Online Banking Services may experience down times on Sept. 15th between 9pm and 2am due to maintenance updates. We apologize for the inconvenience and appreciate your patience with this matter.

×
Genuinely Local Since 1925
24/7 GSB Telebanking
Balances, Transfers, & Account Information
(800)­  411-­9331
Pin #: Last 4 Digits of Social Security
Grinnell
814 4th Ave
Grinnell, IA 50112
(641)­  236-­3174
Johnston
5601 Merle Hay Rd
Johnston, IA 50131
(515)­  278-­6300
Marengo
1101 Court Ave
Marengo, IA 52301
(319)­  642-­5511
Polk City
205 Broadway St
Polk City, IA 50226
(515)­  984-­6211

Mobile Banking

Coming Soon!
Learn More

Bringing Cheer to Children

Give a gift to a hospitalized child this holiday season.
Learn More

E-Statements

Two Easy Steps!
Learn More

Get to Know what Grinnell State Bank is all about!