ZIP Code 5: 80305 - BOULDER, CO

ZIP Code 80305 is the postal code in BOULDER, CO. Besides the basic information, it also lists the full ZIP code and the address of ZIP code 80305. Whatsmore, there is more information related to ZIP Code 80305. For example, nearby ZIP code around ZIP Code 80305, etc.

ZIP Code 5 Plus 4
80305 Post Office
Envelope Example
Basic Meaning
ZIP 80305 Online Map
NearBy ZIP Code
University

ZIP 80305 Basic Information

The basic information of ZIP Code 80305 is as follows, including: country, county, city, FIPS and etc.

State	County	City	ZIP Code 5
CO - Colorado	Boulder County	BOULDER	80305

What is the plus 4 zip code for 80305 ZIP Code? Below is the detail.

80305 ZIP+4 Code List

What are the 4 digit zip extensions of ZIP Code 80305? ZIP code 80305 has many plus 4 codes, and each plus 4 code corresponds to one or more addresses. Below we list all the ZIP+4 codes and their addresses in the ZIP Code 80305. You can find a 9-digit ZIP Code by a full address.

ZIP Code 5 Plus 4	Address
80305-3300	350 BROADWAY ST STE 102 (From 102 To 120 Even), BOULDER, CO
80305-3300	350 BROADWAY ST STE 10 (From 10 To 50 Even), BOULDER, CO
80305-3301	301 (From 301 To 399 Odd) 27TH ST, BOULDER, CO
80305-3302	300 (From 300 To 398 Even) 27TH ST, BOULDER, CO
80305-3303	385 BROADWAY ST STE 100 (From 100 To 200 Even), BOULDER, CO
80305-3304	350 BROADWAY ST STE 100, BOULDER, CO
80305-3305	501 (From 501 To 599 Odd) 27TH WAY, BOULDER, CO
80305-3306	350 BROADWAY ST STE 140, BOULDER, CO
80305-3307	601 (From 601 To 699 Odd) 27TH WAY, BOULDER, CO
80305-3308	385 BROADWAY ST, BOULDER, CO

If you can't find the 80305 plus 4 zip code you need on this page, we recommend you to use the the feature of Quick Select.

Post Office in ZIP Code 80305

HIGH MAR is the only post office in ZIP Code 80305. You can find the address, phone number, and interactive map below. Click to view the service and service hours about HIGH MAR.

HIGH MAR Post Office
Address 4985 MOORHEAD AVE, BOULDER, CO, 80305-9998

Phone 303-494-5006

*Lot Parking Available

How to write a U.S. envelope?

First, you need to fill in the recipient's mailing information in the center of the envelope. The first line is the recipient's name, the second line is the street address with a detailed house number, and the last line is the city, state abbr, and ZIP Code.
Second, write the sender's information on the left top corner of the envelope. If your mail cannot be delivered, it will return to the sender's address.
Finally, don't forget to stick the stamp on the right top corner. Otherwise, the letter will not go into the delivery process.
Here is the envelope example below.

What does each digit of ZIP Code 80305 stand for?

The first digit designates a national area, which ranges from zero for the Northeast to nine for the far West.
The 2-3 digits represent a sectional center facility in that region.
The last two digits designate small post offices or postal zones.

Random Address in ZIP 80305

ZIP Code 80305 has 1,988 real random addresses, you can clicking the picture below to get random addresses in ZIP Code 80305.

ZIP 80305 Online Map

This is online map of the address BOULDER, Boulder County, Colorado. You may use button to move and zoom in / out. The map information is for reference only.

ZIP 80305 NearBy ZIP Code

The Nearby ZIP Codes are 80303, 80309, 80306, 80307, and 80308, you can find ZIP codes in a 25km radius around ZIP Code 80305 and the approximate distance between the two ZIP codes.
The data has a slight deviation for your reference only.

ZIP Code	Distance (Kilo Meters)
80303	3.386
80309	3.574
80306	4.645
80307	4.645
80308	4.645
80310	4.645
80314	4.645
80025	6.535
80304	8.414
80027	8.435
80301	9
80021	12.836
80302	13.482
80026	13.686
80007	13.959
80471	14.206
80038	15.529
80544	15.952
80020	16.256
80005	17.323
80455	18.968
80403	20.281
80023	20.309
80031	20.937
80004	20.982
80234	21.812
80516	22.002
80466	22.483
80503	23.1
80003	23.356
80001	23.936
80006	23.936
80002	24.157
80260	24.393
80481	24.442
80533	24.527
80402	24.622
80419	24.622
80035	24.694
80030	24.866
80502	24.974