Office Location: 229 Main Street Columbus Junction, Iowa 52738 Phone Numbers: Phone (319) 728-2226 Fax (319) 728-7733 Lobby Hours: Monday - Thursday 9:00 a.m. - 4:00 p.m. Friday 9:00 a.m. - 5:00 p.m. Saturday: By appointment only Drive Up Hours: Monday - Friday 8:00 a.m. - 5:00 p.m. Saturday 8:00 a.m. - noon