ZIP Code 16210 — Adrian, PA
16210 is a standard (street delivery) ZIP code serving Adrian, Pennsylvania, in Armstrong 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 16210 at a glance
| ZIP code | 16210 |
|---|---|
| Primary city | Adrian |
| State | Pennsylvania (PA) |
| County | Armstrong FIPS 42005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 574 |
| Coordinates | 40.896970, -79.519000 |
How ZIP+4 works in 16210
The four digits after the hyphen encode a delivery segment inside 16210. 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 16210 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 16210.
| ZIP | City | Distance |
|---|---|---|
| 16259 | Templeton, PA | 3.8 mi |
| 16218 | Cowansville, PA | 4.4 mi |
| 16201 | Kittanning, PA | 6.5 mi |
| 16238 | Manorville, PA | 7.5 mi |
| 16028 | East Brady, PA | 7.5 mi |
| 16236 | Mcgrann, PA | 8 mi |
| 16262 | Worthington, PA | 8.1 mi |
| 16228 | Ford Cliff, PA | 9.4 mi |
| 16248 | Rimersburg, PA | 9.5 mi |
| 16253 | Seminole, PA | 10.1 mi |
| 16212 | Cadogan, PA | 10.4 mi |
| 16223 | Distant, PA | 10.6 mi |
Questions about 16210
What is the ZIP+4 code for 16210?
16210 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 16210, you need to look up a specific street address to get them.
What city is 16210?
16210 is assigned to Adrian, Pennsylvania, in Armstrong 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.