ZIP Code 16127 — Grove City, PA
16127 is a standard (street delivery) ZIP code serving Grove City, Pennsylvania, in Mercer 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 16127 at a glance
| ZIP code | 16127 |
|---|---|
| Primary city | Grove City |
| State | Pennsylvania (PA) |
| County | Mercer FIPS 42085 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 15,117 |
| Coordinates | 41.174330, -80.070020 |
How ZIP+4 works in 16127
The four digits after the hyphen encode a delivery segment inside 16127. 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 16127 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 16127.
| ZIP | City | Distance |
|---|---|---|
| 16035 | Forestville, PA | 5.4 mi |
| 16038 | Harrisville, PA | 6.3 mi |
| 16133 | Jackson Center, PA | 7.1 mi |
| 16156 | Volant, PA | 9.4 mi |
| 16137 | Mercer, PA | 9.7 mi |
| 16057 | Slippery Rock, PA | 9.7 mi |
| 16020 | Boyers, PA | 9.9 mi |
| 16153 | Stoneboro, PA | 10 mi |
| 16372 | Clintonville, PA | 10.3 mi |
| 16342 | Polk, PA | 12.4 mi |
| 16040 | Hilliards, PA | 12.9 mi |
| 16172 | New Wilmington, PA | 14.1 mi |
Questions about 16127
What is the ZIP+4 code for 16127?
16127 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 16127, you need to look up a specific street address to get them.
What city is 16127?
16127 is assigned to Grove City, Pennsylvania, in Mercer 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.