ZIP Code 12158 — Selkirk, NY
12158 is a standard (street delivery) ZIP code serving Selkirk, New York, in Albany 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 12158 at a glance
| ZIP code | 12158 |
|---|---|
| Primary city | Selkirk |
| State | New York (NY) |
| County | Albany FIPS 36001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 5,878 |
| Coordinates | 42.539270, -73.819030 |
How ZIP+4 works in 12158
The four digits after the hyphen encode a delivery segment inside 12158. 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 12158 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 12158.
| ZIP | City | Distance |
|---|---|---|
| 12161 | South Bethlehem, NY | 1.4 mi |
| 12143 | Ravena, NY | 4.1 mi |
| 12077 | Glenmont, NY | 4.2 mi |
| 12045 | Coeymans, NY | 4.3 mi |
| 12067 | Feura Bush, NY | 5.2 mi |
| 12054 | Delmar, NY | 5.3 mi |
| 12156 | Schodack Landing, NY | 5.7 mi |
| 12033 | Castleton On Hudson, NY | 5.8 mi |
| 12046 | Coeymans Hollow, NY | 6.3 mi |
| 12124 | New Baltimore, NY | 6.6 mi |
| 12007 | Alcove, NY | 6.7 mi |
| 12209 | Albany, NY | 7 mi |
Questions about 12158
What is the ZIP+4 code for 12158?
12158 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 12158, you need to look up a specific street address to get them.
What city is 12158?
12158 is assigned to Selkirk, New York, in Albany 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.