ZIP Code 04646 — Islesford, ME
04646 is a standard (street delivery) ZIP code serving Islesford, Maine, in Hancock 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 04646 at a glance
| ZIP code | 04646 |
|---|---|
| Primary city | Islesford |
| State | Maine (ME) |
| County | Hancock FIPS 23009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 134 |
| Coordinates | 44.260070, -68.228120 |
How ZIP+4 works in 04646
The four digits after the hyphen encode a delivery segment inside 04646. 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 04646 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 04646.
| ZIP | City | Distance |
|---|---|---|
| 04625 | Cranberry Isles, ME | 1.5 mi |
| 04675 | Seal Harbor, ME | 2.9 mi |
| 04662 | Northeast Harbor, ME | 4.4 mi |
| 04679 | Southwest Harbor, ME | 5.3 mi |
| 04653 | Bass Harbor, ME | 5.9 mi |
| 04612 | Bernard, ME | 7.4 mi |
| 04660 | Mount Desert, ME | 7.6 mi |
| 04609 | Bar Harbor, ME | 8.9 mi |
| 04674 | Seal Cove, ME | 9.2 mi |
| 04693 | Winter Harbor, ME | 11.4 mi |
| 04635 | Frenchboro, ME | 11.9 mi |
| 04613 | Birch Harbor, ME | 12.4 mi |
Questions about 04646
What is the ZIP+4 code for 04646?
04646 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 04646, you need to look up a specific street address to get them.
What city is 04646?
04646 is assigned to Islesford, Maine, in Hancock 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.