Iron County, MI ZIP Codes
8 ZIP codes cover all or part of Iron County, Michigan: 49935, 49920, 49879, 49915, 49967, 49927, 49903 and 49902. The Census Bureau counts 11,667 residents in the county, with a median household income of $55,940 and a median home value of $109,100. Median household income ranges from $49,471 in 49879 to $63,605 in 49920. Its largest communities include Iron River, Crystal Falls, Caspian, Gaastra and Amasa.
Iron County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 11,667 |
| Households | 5,547 |
| Median household income | $55,940 |
| Median home value | $109,100 |
| Median age | 53.1 |
| Median rent | $716 |
All 8 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 13,050 |
| Households (sum of ZIP codes) | 6,291 |
| Median household income, range across ZIP codes | $49,471 (49879) to $63,605 (49920) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $58,950 |
| Homeowners | 84.9% |
| Households with kids under 18 | 18.5% |
| Moved in the past year | 10.5% |
| Carrier routes in EDDM2GO's route library | 7 routes, 2,179 homes (1 of 8 ZIP codes) |
Top facts
- Highest median household income in Iron County: 49920 ($63,605)
- Most residents: 49935 (5,841 people)
- Highest homeownership: 49920 (88.6% own their home)
- Most households with kids: 49935 (19.7% of households)
- Most new movers: 49920 (12.3% moved in last year)
- Youngest median age: 49935 (51.4 years)
- Highest median home value: 49920 ($129,500)
Every ZIP code in Iron County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 49935 | Iron River | 5,841 | 2,699 | $57,236 | $111,500 | 80.4% | 19.7% | 9.4% | — | — | 100% of its land |
| 49920 | Crystal Falls | 4,380 | 2,096 | $63,605 | $129,500 | 88.6% | 18.8% | 12.3% | 7 | 2,308 | 100% of its land |
| 49879 | Republic | 1,057 | 541 | $49,471 | $97,500 | 87.8% | 11.1% | 7.7% | — | — | 37% of its land |
| 49915 | Caspian | 570 | 294 | $35,000 | $79,100 | 83.0% | 32.3% | 9.1% | — | — | 100% of its land |
| 49967 | Trout Creek | 383 | 240 | $43,750 | $96,400 | 89.2% | 4.2% | 15.1% | — | — | 19% of its land |
| 49927 | Gaastra | 371 | 146 | $47,500 | $53,800 | 92.5% | 29.5% | 13.0% | — | — | 100% of its land |
| 49903 | Amasa | 233 | 160 | $41,818 | $85,600 | 88.8% | 10.0% | 9.4% | — | — | 100% of its land |
| 49902 | Alpha | 215 | 115 | $39,115 | $34,100 | 87.8% | 10.4% | 10.2% | — | — | 100% of its land |
A ZIP code is listed for Iron County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Iron River — 3,002 residents · 1 ZIP code
- Crystal Falls — 1,719 residents · 1 ZIP code
- Caspian — 600 residents · 2 ZIP codes
- Gaastra — 296 residents · 1 ZIP code
- Amasa — 253 residents · 2 ZIP codes
- Alpha — 215 residents · 2 ZIP codes
Price a mailing to Iron County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Iron County, MI?
- 49935, 49920, 49879, 49915, 49967, 49927, 49903 and 49902. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Iron County?
- 11,667 residents in 5,547 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Iron County?
- $55,940 for the county as a whole. Its ZIP codes range from $49,471 (49879) to $63,605 (49920).
- Which Iron County ZIP code has the highest median household income?
- 49920, at $63,605, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Iron County?
- For the 1 of 8 ZIP codes in EDDM2GO's stored route library: 7 carrier routes reaching 2,179 residential and 127 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.