ZIP Code 17236 — Mercersburg, PA
17236 is a standard (street delivery) ZIP code serving Mercersburg, Pennsylvania, in Franklin 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 17236 at a glance
| ZIP code | 17236 |
|---|---|
| Primary city | Mercersburg |
| State | Pennsylvania (PA) |
| County | Franklin FIPS 42055 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 8,845 |
| Coordinates | 39.799970, -77.943050 |
How ZIP+4 works in 17236
The four digits after the hyphen encode a delivery segment inside 17236. 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 17236 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 17236.
| ZIP | City | Distance |
|---|---|---|
| 17212 | Big Cove Tannery, PA | 6.8 mi |
| 21722 | Clear Spring, MD | 9.4 mi |
| 21711 | Big Pool, MD | 9.8 mi |
| 17225 | Greencastle, PA | 9.9 mi |
| 17252 | Saint Thomas, PA | 10.3 mi |
| 17238 | Needmore, PA | 10.8 mi |
| 17233 | Mcconnellsburg, PA | 10.9 mi |
| 17224 | Fort Loudon, PA | 12.2 mi |
| 21767 | Maugansville, MD | 12.6 mi |
| 17263 | State Line, PA | 13.1 mi |
| 17235 | Marion, PA | 13.6 mi |
| 25419 | Falling Waters, WV | 15.3 mi |
Questions about 17236
What is the ZIP+4 code for 17236?
17236 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 17236, you need to look up a specific street address to get them.
What city is 17236?
17236 is assigned to Mercersburg, Pennsylvania, in Franklin 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.