ZIP Code 04937 — Fairfield, ME
04937 is a standard (street delivery) ZIP code serving Fairfield, Maine, in Somerset County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 04937 at a glance
| ZIP code | 04937 |
|---|---|
| Primary city | Fairfield |
| State | Maine (ME) |
| County | Somerset FIPS 23025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,358 |
| Coordinates | 44.635460, -69.676350 |
How ZIP+4 works in 04937
The four digits after the hyphen encode a delivery segment inside 04937. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 04937 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 04937.
| ZIP | City | Distance |
|---|---|---|
| 04944 | Hinckley, ME | 4 mi |
| 04975 | Shawmut, ME | 4.4 mi |
| 04978 | Smithfield, ME | 6.5 mi |
| 04927 | Clinton, ME | 7.3 mi |
| 04901 | Waterville, ME | 7.6 mi |
| 04963 | Oakland, ME | 8.3 mi |
| 04957 | Norridgewock, ME | 9.6 mi |
| 04918 | Belgrade Lakes, ME | 11 mi |
| 04976 | Skowhegan, ME | 11.3 mi |
| 04924 | Canaan, ME | 11.7 mi |
| 04917 | Belgrade, ME | 12.9 mi |
| 04926 | China Village, ME | 13.3 mi |
Questions about 04937
What is the ZIP+4 code for 04937?
04937 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 04937, you need to look up a specific street address to get them.
What city is 04937?
04937 is assigned to Fairfield, Maine, in Somerset County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.