ZIP Code 86436 — Topock, AZ
86436 is a standard (street delivery) ZIP code serving Topock, Arizona, in Mohave 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 86436 at a glance
| ZIP code | 86436 |
|---|---|
| Primary city | Topock |
| State | Arizona (AZ) |
| County | Mohave FIPS 04015 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Phoenix |
| Population | 1,555 |
| Coordinates | 34.739140, -114.422730 |
How ZIP+4 works in 86436
The four digits after the hyphen encode a delivery segment inside 86436. 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 86436 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 86436.
| ZIP | City | Distance |
|---|---|---|
| 92363 | Needles, CA | 8.9 mi |
| 86404 | Lake Havasu City, AZ | 11.4 mi |
| 86440 | Mohave Valley, AZ | 12.3 mi |
| 86433 | Oatman, AZ | 13.6 mi |
| 86403 | Lake Havasu City, AZ | 18.6 mi |
| 86426 | Fort Mohave, AZ | 20.2 mi |
| 86438 | Yucca, AZ | 25.3 mi |
| 86442 | Bullhead City, AZ | 25.8 mi |
| 86406 | Lake Havasu City, AZ | 27.6 mi |
| 89029 | Laughlin, NV | 30.6 mi |
| 86413 | Golden Valley, AZ | 31.2 mi |
| 92267 | Parker Dam, CA | 32.9 mi |
Questions about 86436
What is the ZIP+4 code for 86436?
86436 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 86436, you need to look up a specific street address to get them.
What city is 86436?
86436 is assigned to Topock, Arizona, in Mohave 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.