ZIP Code 81649 — Red Cliff, CO
81649 is a standard (street delivery) ZIP code serving Red Cliff, Colorado, in Eagle 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 81649 at a glance
| ZIP code | 81649 |
|---|---|
| Primary city | Red Cliff |
| State | Colorado (CO) |
| County | Eagle FIPS 08037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 345 |
| Coordinates | 39.464330, -106.319540 |
How ZIP+4 works in 81649
The four digits after the hyphen encode a delivery segment inside 81649. 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 81649 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 81649.
| ZIP | City | Distance |
|---|---|---|
| 81645 | Minturn, CO | 7.9 mi |
| 80443 | Frisco, CO | 8.5 mi |
| 81657 | Vail, CO | 12.7 mi |
| 81620 | Avon, CO | 14.4 mi |
| 80461 | Leadville, CO | 15.4 mi |
| 80420 | Alma, CO | 15.4 mi |
| 80424 | Breckenridge, CO | 16.1 mi |
| 81642 | Meredith, CO | 17.6 mi |
| 81632 | Edwards, CO | 18.9 mi |
| 80498 | Silverthorne, CO | 22.3 mi |
| 80435 | Dillon, CO | 23.1 mi |
| 81251 | Twin Lakes, CO | 23.6 mi |
Questions about 81649
What is the ZIP+4 code for 81649?
81649 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 81649, you need to look up a specific street address to get them.
What city is 81649?
81649 is assigned to Red Cliff, Colorado, in Eagle 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.