ZIP Code 13111 — Martville, NY
13111 is a standard (street delivery) ZIP code serving Martville, New York, in Cayuga 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 13111 at a glance
| ZIP code | 13111 |
|---|---|
| Primary city | Martville |
| State | New York (NY) |
| County | Cayuga FIPS 36011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,463 |
| Coordinates | 43.259880, -76.618580 |
How ZIP+4 works in 13111
The four digits after the hyphen encode a delivery segment inside 13111. 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 13111 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 13111.
| ZIP | City | Distance |
|---|---|---|
| 13074 | Hannibal, NY | 5 mi |
| 13143 | Red Creek, NY | 5.2 mi |
| 13156 | Sterling, NY | 5.5 mi |
| 13033 | Cato, NY | 5.7 mi |
| 13113 | Meridian, NY | 7.8 mi |
| 14590 | Wolcott, NY | 10.7 mi |
| 13154 | South Butler, NY | 11.3 mi |
| 13115 | Minetto, NY | 11.7 mi |
| 13069 | Fulton, NY | 13 mi |
| 13166 | Weedsport, NY | 13.3 mi |
| 13146 | Savannah, NY | 13.3 mi |
| 13140 | Port Byron, NY | 14 mi |
Questions about 13111
What is the ZIP+4 code for 13111?
13111 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 13111, you need to look up a specific street address to get them.
What city is 13111?
13111 is assigned to Martville, New York, in Cayuga 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.