GNB Insurance Grundy Center
603 7th Street
Grundy Center, IA 50638

800-688-5295
Fax: 319-825-3815

Contact Us

GNB Insurance Agency is committed to providing you with the best customer service to meet your insurance needs. Have a question about your policy? Checking on a claim? Have you been in an accident? We're here to help. Call us at 800-688-5295. Or fill out the form below and we'll contact you shortly.


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GNB Insurance Grundy Center

603 7th Street Grundy Center, IA 50638

Phone: 319-825-5295
Toll-Free: 800-688-5295
Fax: 319-825-3815

Office Hours:
Monday - Friday: 8:00 AM - 4:30 PM
Sat: Closed
Sun: Closed

GNB Insurance Ackley

646 Main Street Ackley, IA 50601

Phone: 641-847-3541
Toll-Free: 800-864-4689
Fax: 641-847-2273

Office Hours:
Monday - Friday: 8:00 AM - 4:30 PM
Sat: Closed
Sun: Closed

GNB Insurance Conrad

123 N Main Street Conrad, IA 50621

Phone: 641-366-2280
Toll-Free:
Fax: 641-366-2089

Office Hours:
Monday - Friday: 8:30 AM - 4:30 PM
Sat: Closed
Sun: Closed

GNB Insurance Iowa Falls

315 Main Street Iowa Falls, IA 50126

Phone: 641-648-6689
Toll-Free: 855-268-7323
Fax: 641-648-9633

Office Hours:
Monday - Friday: 8:00 AM - 5:00 PM
Sat: Closed
Sun: Closed

GNB Insurance Marshalltown

2504 S 2nd Street Marshalltown, IA 50158

Phone: 641-753-4040
Toll-Free: 855-493-9883
Fax: 641-753-4110

Office Hours:
Monday - Friday: 8:30 AM - 4:30 PM
Sat: Closed
Sun: Closed