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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 80305 Basic Information

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

StateCountyCityZIP Code 5
CO - ColoradoBoulder CountyBOULDER80305

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

80305 ZIP+4 Code List

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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
80305-3309 201 (From 201 To 299 Odd) 28TH ST, BOULDER, CO
80305-3310 200 (From 200 To 298 Even) 28TH ST, BOULDER, CO
80305-3311 301 (From 301 To 399 Odd) 28TH ST, BOULDER, CO
80305-3312 300 (From 300 To 398 Even) 28TH ST, BOULDER, CO
80305-3313 201 (From 201 To 299 Odd) 29TH ST, BOULDER, CO
80305-3314 200 (From 200 To 298 Even) 29TH ST, BOULDER, CO
80305-3315 301 (From 301 To 399 Odd) 29TH ST, BOULDER, CO
80305-3316 300 (From 300 To 398 Even) 29TH ST, BOULDER, CO
80305-3317 101 (From 101 To 199 Odd) 30TH ST, BOULDER, CO
80305-3318 100 (From 100 To 198 Even) 30TH 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

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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 more-info

    Address 4985 MOORHEAD AVE, BOULDER, CO, 80305-9998

    Phone 303-494-5006

    *Lot Parking Available

How to write a U.S. envelope?

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  • 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.

    ZIP Code: 80305

What does each digit of ZIP Code 80305 stand for?

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  • 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.

    ZIP Code: 80305

Random Address in ZIP 80305

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

ZIP Code:80305

ZIP 80305 Online Map

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

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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 CodeDistance (Kilo Meters)
803033.386
803093.574
803064.645
803074.645
803084.645
803104.645
803144.645
800256.535
803048.414
800278.435
803019
8002112.836
8030213.482
8002613.686
8000713.959
8047114.206
8003815.529
8054415.952
8002016.256
8000517.323
8045518.968
8040320.281
8002320.309
8003120.937
8000420.982
8023421.812
8051622.002
8046622.483
8050323.1
8000323.356
8000123.936
8000623.936
8000224.157
8026024.393
8048124.442
8053324.527
8040224.622
8041924.622
8003524.694
8003024.866
8050224.974
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University in ZIP Code 80305

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ZIP Code 5: 80305 - BOULDER

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