ZIP Code 19501 — Adamstown, PA
19501 is a standard (street delivery) ZIP code serving Adamstown, 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 19501 at a glance
| ZIP code | 19501 |
|---|---|
| Primary city | Adamstown |
| State | Pennsylvania (PA) |
| County | Lancaster FIPS 42071 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 823 |
| Coordinates | 40.243140, -76.058220 |
How ZIP+4 works in 19501
The four digits after the hyphen encode a delivery segment inside 19501. 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 19501 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 19501.
| ZIP | City | Distance |
|---|---|---|
| 17569 | Reinholds, PA | 2.8 mi |
| 17507 | Bowmansville, PA | 3.8 mi |
| 17517 | Denver, PA | 3.9 mi |
| 19540 | Mohnton, PA | 4.9 mi |
| 19608 | Reading, PA | 5 mi |
| 17578 | Stevens, PA | 5.7 mi |
| 17581 | Terre Hill, PA | 6 mi |
| 19609 | Reading, PA | 6.7 mi |
| 19607 | Reading, PA | 6.8 mi |
| 19565 | Wernersville, PA | 7 mi |
| 17519 | East Earl, PA | 7.2 mi |
| 17522 | Ephrata, PA | 7.5 mi |
Questions about 19501
What is the ZIP+4 code for 19501?
19501 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 19501, you need to look up a specific street address to get them.
What city is 19501?
19501 is assigned to Adamstown, 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.