ZIP Code 12911 — Keeseville, NY
12911 is a standard (street delivery) ZIP code serving Keeseville, New York, in Clinton 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 12911 at a glance
| ZIP code | 12911 |
|---|---|
| Primary city | Keeseville |
| State | New York (NY) |
| County | Clinton FIPS 36019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 41 |
| Coordinates | 44.534640, -73.466870 |
How ZIP+4 works in 12911
The four digits after the hyphen encode a delivery segment inside 12911. 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 12911 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.
Other ZIP codes in Keeseville
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 12911.
| ZIP | City | Distance |
|---|---|---|
| 12975 | Port Kent, NY | 1.8 mi |
| 12972 | Peru, NY | 5.1 mi |
| 12944 | Keeseville, NY | 6.5 mi |
| 12924 | Keeseville, NY | 7.2 mi |
| 12903 | Plattsburgh, NY | 8.4 mi |
| 05486 | South Hero, VT | 10 mi |
| 05408 | Burlington, VT | 10.1 mi |
| 12901 | Plattsburgh, NY | 12 mi |
| 12996 | Willsboro, NY | 12.2 mi |
| 05446 | Colchester, VT | 12.4 mi |
| 05401 | Burlington, VT | 12.9 mi |
| 12985 | Schuyler Falls, NY | 13.3 mi |
Questions about 12911
What is the ZIP+4 code for 12911?
12911 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 12911, you need to look up a specific street address to get them.
What city is 12911?
12911 is assigned to Keeseville, New York, in Clinton 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.