ZIP Code 80815 — Flagler, CO
80815 is a standard (street delivery) ZIP code serving Flagler, Colorado, in Kit Carson 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 80815 at a glance
| ZIP code | 80815 |
|---|---|
| Primary city | Flagler |
| State | Colorado (CO) |
| County | Kit Carson FIPS 08063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 923 |
| Coordinates | 39.401740, -103.081910 |
How ZIP+4 works in 80815
The four digits after the hyphen encode a delivery segment inside 80815. 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 80815 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 80815.
| ZIP | City | Distance |
|---|---|---|
| 80804 | Arriba, CO | 10.2 mi |
| 80834 | Seibert, CO | 12.7 mi |
| 80861 | Vona, CO | 18.5 mi |
| 80818 | Genoa, CO | 21.3 mi |
| 80812 | Cope, CO | 21.7 mi |
| 80801 | Anton, CO | 23.4 mi |
| 80836 | Stratton, CO | 27.5 mi |
| 80822 | Joes, CO | 28.4 mi |
| 80740 | Lindon, CO | 28.6 mi |
| 80862 | Wild Horse, CO | 34 mi |
| 80821 | Hugo, CO | 35 mi |
| 80824 | Kirk, CO | 35.9 mi |
Questions about 80815
What is the ZIP+4 code for 80815?
80815 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 80815, you need to look up a specific street address to get them.
What city is 80815?
80815 is assigned to Flagler, Colorado, in Kit Carson 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.