ZIP Code 17078 — Palmyra, PA
17078 is a standard (street delivery) ZIP code serving Palmyra, Pennsylvania, in Lebanon 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 17078 at a glance
| ZIP code | 17078 |
|---|---|
| Primary city | Palmyra |
| State | Pennsylvania (PA) |
| County | Lebanon FIPS 42075 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 23,840 |
| Coordinates | 40.289520, -76.584840 |
How ZIP+4 works in 17078
The four digits after the hyphen encode a delivery segment inside 17078. 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 17078 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 17078.
| ZIP | City | Distance |
|---|---|---|
| 17010 | Campbelltown, PA | 0.8 mi |
| 17033 | Hershey, PA | 2.7 mi |
| 17003 | Annville, PA | 4.9 mi |
| 17041 | Lawn, PA | 5.6 mi |
| 17036 | Hummelstown, PA | 5.9 mi |
| 17064 | Mount Gretna, PA | 6.6 mi |
| 17077 | Ono, PA | 8.2 mi |
| 17042 | Lebanon, PA | 8.5 mi |
| 17028 | Grantville, PA | 8.6 mi |
| 17022 | Elizabethtown, PA | 8.6 mi |
| 17016 | Cornwall, PA | 9.4 mi |
| 17057 | Middletown, PA | 9.9 mi |
Questions about 17078
What is the ZIP+4 code for 17078?
17078 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 17078, you need to look up a specific street address to get them.
What city is 17078?
17078 is assigned to Palmyra, Pennsylvania, in Lebanon 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.