ZIP Code 99018 — Latah, WA
99018 is a standard (street delivery) ZIP code serving Latah, Washington, in Spokane 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 99018 at a glance
| ZIP code | 99018 |
|---|---|
| Primary city | Latah |
| State | Washington (WA) |
| County | Spokane FIPS 53063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 272 |
| Coordinates | 47.291700, -117.152120 |
How ZIP+4 works in 99018
The four digits after the hyphen encode a delivery segment inside 99018. 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 99018 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 99018.
| ZIP | City | Distance |
|---|---|---|
| 99033 | Tekoa, WA | 4.9 mi |
| 99039 | Waverly, WA | 4.9 mi |
| 99012 | Fairfield, WA | 6.5 mi |
| 83851 | Plummer, ID | 11.6 mi |
| 99158 | Oakesdale, WA | 11.7 mi |
| 99170 | Rosalia, WA | 12 mi |
| 99030 | Rockford, WA | 13 mi |
| 99031 | Spangle, WA | 13.1 mi |
| 99128 | Farmington, WA | 13.6 mi |
| 83876 | Worley, ID | 14.9 mi |
| 99149 | Malden, WA | 15.5 mi |
| 83824 | Desmet, ID | 16.2 mi |
Questions about 99018
What is the ZIP+4 code for 99018?
99018 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 99018, you need to look up a specific street address to get them.
What city is 99018?
99018 is assigned to Latah, Washington, in Spokane 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.