ZIP Code 17566 — Quarryville, PA
17566 is a standard (street delivery) ZIP code serving Quarryville, Pennsylvania, in Lancaster 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 17566 at a glance
| ZIP code | 17566 |
|---|---|
| Primary city | Quarryville |
| State | Pennsylvania (PA) |
| County | Lancaster FIPS 42071 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 12,603 |
| Coordinates | 39.869240, -76.147600 |
How ZIP+4 works in 17566
The four digits after the hyphen encode a delivery segment inside 17566. 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 17566 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 17566.
| ZIP | City | Distance |
|---|---|---|
| 17536 | Kirkwood, PA | 4.3 mi |
| 17560 | New Providence, PA | 5.1 mi |
| 17579 | Strasburg, PA | 6.5 mi |
| 17509 | Christiana, PA | 6.8 mi |
| 17568 | Refton, PA | 7.1 mi |
| 17518 | Drumore, PA | 7.4 mi |
| 17563 | Peach Bottom, PA | 7.5 mi |
| 17532 | Holtwood, PA | 7.7 mi |
| 17562 | Paradise, PA | 7.9 mi |
| 17584 | Willow Street, PA | 8.8 mi |
| 19362 | Nottingham, PA | 9.2 mi |
| 17572 | Ronks, PA | 9.7 mi |
Questions about 17566
What is the ZIP+4 code for 17566?
17566 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 17566, you need to look up a specific street address to get them.
What city is 17566?
17566 is assigned to Quarryville, Pennsylvania, in Lancaster 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.