ZIP code 80309
Where is ZIP code 80309?
Boulder, Colorado
Boulder County · Unique ZIP code
ZIP code 80309 belongs to Boulder, Colorado in Boulder County. 80309 is a unique ZIP code assigned to a single organization (University Of Colorado) that gets a lot of mail. It is in the Mountain Time zone and uses area code 303. The closest ZIP codes are 80310 (Boulder, 0 mi north), 80302 (Boulder, 0.8 mi west) and 80304 (Boulder, 1.6 mi north).
| ZIP code | 80309 |
|---|---|
| Type | Unique ZIP code for a single organization |
| Status | Active |
| City | Boulder |
| State | Colorado (CO) |
| County | Boulder County |
| Time zone | Mountain Time · now |
| Area code | 303 |
| Coordinates | 40.015, -105.2705 map |
| 3-digit prefix | 803 |
The Census Bureau doesn’t publish population figures for unique ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 80309
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 80310 | Boulder, CO | 0 mi N | Unique |
| 80302 | Boulder, CO | 0.8 mi W | Standard |
| 80304 | Boulder, CO | 1.6 mi N | Standard |
| 80303 | Boulder, CO | 2.3 mi SE | Standard |
| 80305 | Boulder, CO | 2.5 mi S | Standard |
| 80301 | Boulder, CO | 3.8 mi NE | Standard |
| 80025 | Eldorado Springs, CO | 5.8 mi S | PO Box only |
| 80308 | Boulder, CO | 6.2 mi W | PO Box only |
| 80027 | Louisville, CO | 7.1 mi E | Standard |
| 80307 | Boulder, CO | 7.4 mi NW | PO Box only |
| 80314 | Boulder, CO | 7.4 mi NW | Unique |
| 80544 | Niwot, CO | 8.1 mi NE | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 80309 or measure the distance to another ZIP code.
How to address mail to 80309
123 MAIN ST
BOULDER CO 80309
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (80309-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Boulder, CO
All Boulder ZIP codes with population and income →
Questions
- What city is ZIP code 80309?
- 80309 is a Boulder, Colorado ZIP code.
- What county is 80309 in?
- ZIP code 80309 is in Boulder County, Colorado.
- What time zone is ZIP code 80309 in?
- 80309 is in the Mountain Time zone (America/Denver).
- What area code is 80309?
- Phone numbers in ZIP code 80309 use area code 303.
- Can I use 80309 for a street address?
- Only for mail to the organization it is assigned to. Other addresses in Boulder use a standard ZIP code.
- What ZIP codes are near 80309?
- The nearest ZIP codes to 80309 are 80310 (Boulder, 0 miles), 80302 (Boulder, 0.8 miles), 80304 (Boulder, 1.6 miles) and 80303 (Boulder, 2.3 miles).