ZIP Code 16693 — Williamsburg, PA
16693 is a standard (street delivery) ZIP code serving Williamsburg, Pennsylvania, in Blair 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 16693 at a glance
| ZIP code | 16693 |
|---|---|
| Primary city | Williamsburg |
| State | Pennsylvania (PA) |
| County | Blair FIPS 42013 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,795 |
| Coordinates | 40.465190, -78.215930 |
How ZIP+4 works in 16693
The four digits after the hyphen encode a delivery segment inside 16693. 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 16693 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 16693.
| ZIP | City | Distance |
|---|---|---|
| 16648 | Hollidaysburg, PA | 6.3 mi |
| 16647 | Hesston, PA | 7.9 mi |
| 16602 | Altoona, PA | 8.8 mi |
| 16638 | Entriken, PA | 8.8 mi |
| 16611 | Alexandria, PA | 9.2 mi |
| 16657 | James Creek, PA | 9.9 mi |
| 16654 | Huntingdon, PA | 10 mi |
| 16601 | Altoona, PA | 10.2 mi |
| 16617 | Bellwood, PA | 11.3 mi |
| 16662 | Martinsburg, PA | 11.8 mi |
| 16622 | Calvin, PA | 12.2 mi |
| 16684 | Tipton, PA | 12.5 mi |
Questions about 16693
What is the ZIP+4 code for 16693?
16693 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 16693, you need to look up a specific street address to get them.
What city is 16693?
16693 is assigned to Williamsburg, Pennsylvania, in Blair 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.