ZIP Code 04210 — Auburn, ME
04210 is a standard (street delivery) ZIP code serving Auburn, Maine, in Androscoggin 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 04210 at a glance
| ZIP code | 04210 |
|---|---|
| Primary city | Auburn |
| State | Maine (ME) |
| County | Androscoggin FIPS 23001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 24,602 |
| Coordinates | 44.085050, -70.249230 |
How ZIP+4 works in 04210
The four digits after the hyphen encode a delivery segment inside 04210. 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 04210 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 04210.
| ZIP | City | Distance |
|---|---|---|
| 04240 | Lewiston, ME | 4 mi |
| 04258 | Minot, ME | 6.2 mi |
| 04274 | Poland, ME | 7.5 mi |
| 04250 | Lisbon, ME | 7.7 mi |
| 04256 | Mechanic Falls, ME | 7.9 mi |
| 04260 | New Gloucester, ME | 8.7 mi |
| 04236 | Greene, ME | 8.9 mi |
| 04280 | Sabattus, ME | 9.6 mi |
| 04222 | Durham, ME | 10.2 mi |
| 04252 | Lisbon Falls, ME | 10.2 mi |
| 04238 | Hebron, ME | 10.6 mi |
| 04282 | Turner, ME | 12.6 mi |
Questions about 04210
What is the ZIP+4 code for 04210?
04210 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 04210, you need to look up a specific street address to get them.
What city is 04210?
04210 is assigned to Auburn, Maine, in Androscoggin 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.