Smithfield, ME zip code
Smithfield, Maine uses one zip code: 04978. Most of it is in Somerset County. Together these zip codes are home to about 856 people.
Zip codes
1
Population
856
All zips combined
Largest zip
04978
856 residents
Zip codes in Smithfield
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 04978 | 856 | $107,917 |