ZIP Code 95620 — Dixon, CA
95620 is a standard (street delivery) ZIP code serving Dixon, California, in Solano 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 95620 at a glance
| ZIP code | 95620 |
|---|---|
| Primary city | Dixon |
| State | California (CA) |
| County | Solano FIPS 06095 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 22,223 |
| Coordinates | 38.405990, -121.756890 |
How ZIP+4 works in 95620
The four digits after the hyphen encode a delivery segment inside 95620. 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 95620 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 95620.
| ZIP | City | Distance |
|---|---|---|
| 95625 | Elmira, CA | 8.9 mi |
| 95612 | Clarksburg, CA | 9.6 mi |
| 95687 | Vacaville, CA | 10 mi |
| 95618 | Davis, CA | 10.1 mi |
| 95616 | Davis, CA | 10.8 mi |
| 95615 | Courtland, CA | 13.2 mi |
| 94535 | Travis Afb, CA | 13.6 mi |
| 95831 | Sacramento, CA | 13.8 mi |
| 95639 | Hood, CA | 14.1 mi |
| 95832 | Sacramento, CA | 14.1 mi |
| 95688 | Vacaville, CA | 14.6 mi |
| 95680 | Ryde, CA | 14.9 mi |
Questions about 95620
What is the ZIP+4 code for 95620?
95620 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 95620, you need to look up a specific street address to get them.
What city is 95620?
95620 is assigned to Dixon, California, in Solano 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.