| Zip Code | City | Population ↓ |
|---|---|---|
| 49931 | Houghton | 10,282 |
| 49930 | Hancock | 7,266 |
| 49913 | Calumet | 7,238 |
| 49916 | Chassell | 2,980 |
| 49945 | Lake Linden | 2,816 |
| 49905 | Atlantic Mine | 2,349 |
| 49922 | Dollar Bay | 888 |
| 49958 | Pelkie | 839 |
| 49934 | Hubbell | 780 |
| 49963 | South Range | 523 |
| 49965 | Toivola | 501 |
| 49955 | Painesdale | 449 |
| 49921 | Dodgeville | 362 |
| 49967 | Trout Creek | 356 |
| 49917 | Copper City | 312 |
| 49961 | Sidnaw | 141 |
| 49952 | Nisula | 133 |
| 49942 | Kearsarge | 69 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Houghton County, Michigan (US Census).