ZIP Code 95446 — Guerneville, CA
95446 is a standard (street delivery) ZIP code serving Guerneville, California, in Sonoma 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 95446 at a glance
| ZIP code | 95446 |
|---|---|
| Primary city | Guerneville |
| State | California (CA) |
| County | Sonoma FIPS 06097 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 4,607 |
| Coordinates | 38.525250, -123.004230 |
How ZIP+4 works in 95446
The four digits after the hyphen encode a delivery segment inside 95446. 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 95446 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 95446.
| ZIP | City | Distance |
|---|---|---|
| 95471 | Rio Nido, CA | 1.7 mi |
| 95486 | Villa Grande, CA | 3.7 mi |
| 95462 | Monte Rio, CA | 3.7 mi |
| 95430 | Duncans Mills, CA | 4.8 mi |
| 95436 | Forestville, CA | 5.4 mi |
| 95419 | Camp Meeker, CA | 7.5 mi |
| 95465 | Occidental, CA | 8.3 mi |
| 95448 | Healdsburg, CA | 9.1 mi |
| 95444 | Graton, CA | 9.7 mi |
| 95421 | Cazadero, CA | 10.3 mi |
| 95492 | Windsor, CA | 10.4 mi |
| 95450 | Jenner, CA | 11.4 mi |
Questions about 95446
What is the ZIP+4 code for 95446?
95446 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 95446, you need to look up a specific street address to get them.
What city is 95446?
95446 is assigned to Guerneville, California, in Sonoma 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.