18 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49931 | Houghton | 10,229 |
| 49913 | Calumet | 7,483 |
| 49930 | Hancock | 7,199 |
| 49916 | Chassell | 3,157 |
| 49945 | Lake Linden | 2,704 |
| 49905 | Atlantic Mine | 2,138 |
| 49934 | Hubbell | 949 |
| 49958 | Pelkie | 900 |
| 49922 | Dollar Bay | 837 |
| 49963 | South Range | 621 |
| 49965 | Toivola | 482 |
| 49955 | Painesdale | 439 |
| 49967 | Trout Creek | 366 |
| 49917 | Copper City | 304 |
| 49921 | Dodgeville | 236 |
| 49961 | Sidnaw | 137 |
| 49952 | Nisula | 93 |
| 49942 | Kearsarge | 81 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Houghton County, Michigan (US Census).