ZIP Code 16724 — Crosby, PA
16724 is a standard (street delivery) ZIP code serving Crosby, Pennsylvania, in McKean 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 16724 at a glance
| ZIP code | 16724 |
|---|---|
| Primary city | Crosby |
| State | Pennsylvania (PA) |
| County | McKean FIPS 42083 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 69 |
| Coordinates | 41.746740, -78.390220 |
How ZIP+4 works in 16724
The four digits after the hyphen encode a delivery segment inside 16724. 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 16724 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 16724.
| ZIP | City | Distance |
|---|---|---|
| 16749 | Smethport, PA | 1.7 mi |
| 16730 | East Smethport, PA | 4.9 mi |
| 16743 | Port Allegany, PA | 7.3 mi |
| 16740 | Mount Jewett, PA | 9 mi |
| 16726 | Cyclone, PA | 10.5 mi |
| 16750 | Turtlepoint, PA | 10.9 mi |
| 16733 | Hazel Hurst, PA | 11 mi |
| 16744 | Rew, PA | 12.8 mi |
| 16746 | Roulette, PA | 13.3 mi |
| 16745 | Rixford, PA | 13.4 mi |
| 16732 | Gifford, PA | 13.7 mi |
| 16731 | Eldred, PA | 13.8 mi |
Questions about 16724
What is the ZIP+4 code for 16724?
16724 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 16724, you need to look up a specific street address to get them.
What city is 16724?
16724 is assigned to Crosby, Pennsylvania, in McKean 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.