ZIP Code 04737 — Clayton Lake, ME
04737 is a standard (street delivery) ZIP code serving Clayton Lake, Maine, in Aroostook 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 04737 at a glance
| ZIP code | 04737 |
|---|---|
| Primary city | Clayton Lake |
| State | Maine (ME) |
| County | Aroostook FIPS 23003 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Coordinates | 46.616410, -69.521780 |
How ZIP+4 works in 04737
The four digits after the hyphen encode a delivery segment inside 04737. 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 04737 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 04737.
| ZIP | City | Distance |
|---|---|---|
| 04774 | Saint Francis, ME | 40.3 mi |
Questions about 04737
What is the ZIP+4 code for 04737?
04737 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 04737, you need to look up a specific street address to get them.
What city is 04737?
04737 is assigned to Clayton Lake, Maine, in Aroostook 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.