County ZIP codes · Michigan · FIPS 26061
Houghton County, MI ZIP Codes
Houghton County, Michigan has 19 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 18 of the residential ones lie mainly in Houghton County and 1 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $53,571 in 49913 (Calumet) to $77,617 in 49905 (Atlantic Mine) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Houghton County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $53,571 and $72,314.
They carry 19 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 19 residential ZIP codes in Houghton County
18 ZIP codes lie mainly in Houghton County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 49931 | Houghton | 10,475 | 397 | $50k | $233k | 100% |
| 49913 | Calumet | 7,510 | 99 | $54k | $110k | 93% |
| 49930 | Hancock | 7,405 | 150 | $72k | $214k | 100% |
| 49916 | Chassell | 2,865 | 26 | $75k | $199k | 100% |
| 49945 | Lake Linden | 2,729 | 18 | $60k | $159k | 63% |
| 49905 | Atlantic Mine | 2,281 | 29 | $78k | $211k | 100% |
| 49958 | Pelkie | 911 | 7 | $41k | $164k | 70% |
| 49922 | Dollar Bay | 842 | 300 | $55k | $121k | 100% |
| 49934 | Hubbell | 772 | 602 | $47k | $72k | 100% |
| 49965 | Toivola | 544 | 3 | $78k | $232k | 87% |
| 49963 | South Range | 515 | 117 | $59k | $94k | 100% |
| 49955 | Painesdale | 499 | 62 | $64k | $96k | 100% |
| 49967 | Trout Creek | 383 | 1 | $44k | $96k | 44% |
| 49921 | Dodgeville | 336 | 713 | – | $212k | 100% |
| 49917 | Copper City | 326 | 190 | $53k | $108k | 100% |
| 49952 | Nisula | 111 | 1 | $80k | $104k | 98% |
| 49961 | Sidnaw | 104 | 2 | $54k | $86k | 100% |
| 49942 | Kearsarge | 55 | 100 | $55k | – | 100% |
Partly in Houghton County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 49948 | Mass City | 581 | 5 | $73k | $100k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
7 ZIP codes of Houghton County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Houghton | Elsewhere |
|---|---|---|
| 49913 | 93% | Keweenaw County 7% |
| 49945 | 63% | Keweenaw County 37% |
| 49958 | 70% | Baraga County 30% |
| 49948 | 2% | Ontonagon County 98% |
| 49965 | 87% | Ontonagon County 13% |
| 49967 | 44% | Ontonagon County 37%; Iron County 19% |
| 49952 | 98% | Ontonagon County 2% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Houghton County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Houghton County starts with 499.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 499 | Iron Mountain, MI (SCF 498) | 19 | 47 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.