ZIP Code 99835 — Sitka, AK
99835 is a standard (street delivery) ZIP code serving Sitka, Alaska, in Sitka 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 99835 at a glance
| ZIP code | 99835 |
|---|---|
| Primary city | Sitka |
| State | Alaska (AK) |
| County | Sitka FIPS 02220 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Sitka |
| Population | 8,368 |
| Coordinates | 57.238910, -135.263300 |
How ZIP+4 works in 99835
The four digits after the hyphen encode a delivery segment inside 99835. 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 99835 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.
Questions about 99835
What is the ZIP+4 code for 99835?
99835 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 99835, you need to look up a specific street address to get them.
What city is 99835?
99835 is assigned to Sitka, Alaska, in Sitka 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.