ZIP Code 81624 — Collbran, CO
81624 is a standard (street delivery) ZIP code serving Collbran, Colorado, in Mesa 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 81624 at a glance
| ZIP code | 81624 |
|---|---|
| Primary city | Collbran |
| State | Colorado (CO) |
| County | Mesa FIPS 08077 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 1,492 |
| Coordinates | 39.246110, -107.772590 |
How ZIP+4 works in 81624
The four digits after the hyphen encode a delivery segment inside 81624. 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 81624 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 81624.
| ZIP | City | Distance |
|---|---|---|
| 81646 | Molina, CO | 15.1 mi |
| 81652 | Silt, CO | 16.5 mi |
| 81413 | Cedaredge, CO | 20.3 mi |
| 81428 | Paonia, CO | 21.9 mi |
| 81643 | Mesa, CO | 22 mi |
| 81635 | Parachute, CO | 25.3 mi |
| 81647 | New Castle, CO | 26.3 mi |
| 81419 | Hotchkiss, CO | 26.4 mi |
| 81418 | Eckert, CO | 28 mi |
| 81434 | Somerset, CO | 29.9 mi |
| 81623 | Carbondale, CO | 30.1 mi |
| 81410 | Austin, CO | 31.8 mi |
Questions about 81624
What is the ZIP+4 code for 81624?
81624 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 81624, you need to look up a specific street address to get them.
What city is 81624?
81624 is assigned to Collbran, Colorado, in Mesa 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.