ZIP Code 80743 — Otis, CO
80743 is a standard (street delivery) ZIP code serving Otis, Colorado, in Washington 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 80743 at a glance
| ZIP code | 80743 |
|---|---|
| Primary city | Otis |
| State | Colorado (CO) |
| County | Washington FIPS 08121 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 1,333 |
| Coordinates | 40.215880, -102.956790 |
How ZIP+4 works in 80743
The four digits after the hyphen encode a delivery segment inside 80743. 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 80743 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 80743.
| ZIP | City | Distance |
|---|---|---|
| 80720 | Akron, CO | 15.6 mi |
| 80759 | Yuma, CO | 16 mi |
| 80722 | Atwood, CO | 24.3 mi |
| 80727 | Eckley, CO | 26.9 mi |
| 80733 | Hillrose, CO | 29.2 mi |
| 80728 | Fleming, CO | 29.6 mi |
| 80723 | Brush, CO | 31.5 mi |
| 80731 | Haxtun, CO | 31.6 mi |
| 80751 | Sterling, CO | 33.7 mi |
| 80801 | Anton, CO | 33.9 mi |
| 80741 | Merino, CO | 36.1 mi |
| 80746 | Paoli, CO | 37.7 mi |
Questions about 80743
What is the ZIP+4 code for 80743?
80743 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 80743, you need to look up a specific street address to get them.
What city is 80743?
80743 is assigned to Otis, Colorado, in Washington 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.