ZIP Code 12432 — Glasco, NY
12432 is a standard (street delivery) ZIP code serving Glasco, New York, in Ulster 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 12432 at a glance
| ZIP code | 12432 |
|---|---|
| Primary city | Glasco |
| State | New York (NY) |
| County | Ulster FIPS 36111 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 697 |
| Coordinates | 42.047020, -73.944030 |
How ZIP+4 works in 12432
The four digits after the hyphen encode a delivery segment inside 12432. 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 12432 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 12432.
| ZIP | City | Distance |
|---|---|---|
| 12504 | Annandale On Hudson, NY | 2.4 mi |
| 12456 | Mount Marion, NY | 2.9 mi |
| 12507 | Barrytown, NY | 3 mi |
| 12453 | Malden On Hudson, NY | 3.2 mi |
| 12583 | Tivoli, NY | 3.3 mi |
| 12477 | Saugerties, NY | 3.9 mi |
| 12475 | Ruby, NY | 4.2 mi |
| 12449 | Lake Katrine, NY | 4.5 mi |
| 12490 | West Camp, NY | 5.4 mi |
| 12526 | Germantown, NY | 6.8 mi |
| 12571 | Red Hook, NY | 7.3 mi |
| 12498 | Woodstock, NY | 8.5 mi |
Questions about 12432
What is the ZIP+4 code for 12432?
12432 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 12432, you need to look up a specific street address to get them.
What city is 12432?
12432 is assigned to Glasco, New York, in Ulster 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.