ZIP Code 80737 — Julesburg, CO
80737 is a standard (street delivery) ZIP code serving Julesburg, Colorado, in Sedgwick 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 80737 at a glance
| ZIP code | 80737 |
|---|---|
| Primary city | Julesburg |
| State | Colorado (CO) |
| County | Sedgwick FIPS 08115 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 1,420 |
| Coordinates | 40.889740, -102.192670 |
How ZIP+4 works in 80737
The four digits after the hyphen encode a delivery segment inside 80737. 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 80737 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 80737.
| ZIP | City | Distance |
|---|---|---|
| 80744 | Ovid, CO | 10 mi |
| 80721 | Amherst, CO | 14.1 mi |
| 69168 | Venango, NE | 14.7 mi |
| 69122 | Big Springs, NE | 15.3 mi |
| 80749 | Sedgwick, CO | 18.8 mi |
| 69129 | Chappell, NE | 19.8 mi |
| 69127 | Brule, NE | 20.9 mi |
| 69140 | Grant, NE | 22.2 mi |
| 80746 | Paoli, CO | 23.9 mi |
| 80734 | Holyoke, CO | 25.7 mi |
| 69153 | Ogallala, NE | 29.9 mi |
| 80731 | Haxtun, CO | 30 mi |
Questions about 80737
What is the ZIP+4 code for 80737?
80737 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 80737, you need to look up a specific street address to get them.
What city is 80737?
80737 is assigned to Julesburg, Colorado, in Sedgwick 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.