ZIP Code 10977 — Spring Valley, NY
10977 is a standard (street delivery) ZIP code serving Spring Valley, New York, in Rockland 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 10977 at a glance
| ZIP code | 10977 |
|---|---|
| Primary city | Spring Valley |
| State | New York (NY) |
| County | Rockland FIPS 36087 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 71,571 |
| Coordinates | 41.117490, -74.048250 |
How ZIP+4 works in 10977
The four digits after the hyphen encode a delivery segment inside 10977. 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 10977 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 10977.
| ZIP | City | Distance |
|---|---|---|
| 10952 | Monsey, NY | 1.7 mi |
| 10954 | Nanuet, NY | 2.2 mi |
| 10956 | New City, NY | 3.9 mi |
| 10994 | West Nyack, NY | 4.1 mi |
| 10965 | Pearl River, NY | 4.3 mi |
| 10901 | Suffern, NY | 4.4 mi |
| 07645 | Montvale, NJ | 4.5 mi |
| 10970 | Pomona, NY | 4.8 mi |
| 07458 | Saddle River, NJ | 5.6 mi |
| 07656 | Park Ridge, NJ | 5.7 mi |
| 10989 | Valley Cottage, NY | 5.8 mi |
| 10913 | Blauvelt, NY | 5.9 mi |
Questions about 10977
What is the ZIP+4 code for 10977?
10977 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 10977, you need to look up a specific street address to get them.
What city is 10977?
10977 is assigned to Spring Valley, New York, in Rockland 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.