Astera Credit Union Address: 3062 S State Rd, Ionia, MI 48846 Phone: (517) 323-3644 Hours: Mon: 9am-5:30pm Tue: 9am-5:30pm Wed: 10am-5:30pm Thu: 9am-5:30pm Fri: 9am-5:30pm Banks Other Businesses: Independent Bank at 2551 S State Rd, Ionia, MI 48846 Chase Bank at 2770 S State Rd, Ionia, MI 48846 Mercantile Bank Of Michigan at 2600 S State Rd, Ionia, MI 48846 Fifth Third Bank at 3153 Commerce Ln, Ionia, MI 48846