Houghton County
Houghton County Details
Map Coord - Letter = OM
Map Coord - Number = 99
| City/Township | Realcomp Map Area |
| ADAMS TOWNSHIP | 31071 |
| CALUMET | 31012 |
| CALUMET TOWNSHIP | 31011 |
| CHASSELL TOWNSHIP | 31111 |
| DUNCAN TOWNSHIP | 31141 |
| ELM RIVER TOWNSHIP | 31121 |
| FRANKLIN TOWNSHIP | 31041 |
| HANCOCK | 31022 |
| HANCOCK TOWNSHIP | 31021 |
| HOUGHTON | 31102 |
| HOUGHTON TOWNSHIP | 31081 |
| LAIRD TOWNSHIP | 31131 |
| LAKE LINDEN | 31062 |
| LAURIUM | 31013 |
| OSCEOLA TOWNSHIP | 31051 |
| PORTAGE TOWNSHIP | 31101 |
| QUINCY | 31031 |
| SCHOOLCRAFT TOWNSHIP | 31061 |
| TORCH LAKE TOWNSHIP | 31091 |