According to the ATF database, there are 7 registered FFLs in Okemos, Michigan.
4932 GRANDVIEWOKEMOS, MI, 488640000
3985 SHOALS DROKEMOS, MI, 48864
3470 DOBIE ROADOKEMOS, MI, 48864
3470 DOBIE RDOKEMOS, MI, 48864
1884 BIRCHWOOD DROKEMOS, MI, 48864
3850 ROXBURY AVEOKEMOS, MI, 48864
2173 WHITE OWL WAYOKEMOS, MI, 48864