Ionia County
Ionia County Details
Map Coord - Letter = OM
Map Coord - Number = 99
| City/Township | Realcomp Map Area |
| BELDING | 34012 |
| BERLIN TOWNSHIP | 34101 |
| BOSTON TOWNSHIP | 34091 |
| CAMPBELL TOWNSHIP | 34131 |
| CLARKSVILLE | 34132 |
| DANBY TOWNSHIP | 34161 |
| EASTON TOWNSHIP | 34061 |
| HUBBARDSTON | 34042 |
| IONIA | 34072 |
| IONIA TOWNSHIP | 34071 |
| KEENE TOWNSHIP | 34051 |
| LYONS | 34082 |
| LYONS TOWNSHIP | 34081 |
| MUIR | 34083 |
| NORTH PLAINS TOWNSHIP | 34041 |
| ODESSA TOWNSHIP | 34141 |
| ORANGE TOWNSHIP | 34111 |
| ORLEANS TOWNSHIP | 34021 |
| OTISCO TOWNSHIP | 34011 |
| PEWAMO | 34084 |
| PORTLAND | 34122 |
| PORTLAND TOWNSHIP | 34121 |
| RONALD TOWNSHIP | 34031 |
| SARANAC | 34092 |
| SEBAWA TOWNSHIP | 34151 |