Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — PREFIX/816

ZIP codes starting with 816

ZIP codes
38
States
CO
Largest city
Glenwood Springs, CO
Population
161,153

The first three digits of a ZIP code identify a sectional center facility — the postal processing plant that sorts mail for the area. It is a mail-routing grouping, not an administrative boundary.

Every ZIP code in 816xx

ZIP codes starting with 816
ZIP City Type Population Median income Median home
81601 Glenwood Springs , CO Standard 16,844 $109,129 $798,900
81602 Glenwood Springs , CO No street area — — —
81610 Dinosaur , CO Standard 635 $51,105 —
81611 Aspen , CO Standard 9,068 $82,664 $988,000
81612 Aspen , CO Standard 0 — —
81615 Snowmass Village , CO Standard 2,972 $102,959 $1,729,900
81620 Avon , CO Standard 10,870 $102,775 $861,500
81621 Basalt , CO Standard 6,550 $104,754 $1,136,600
81623 Carbondale , CO Standard 15,067 $109,661 $913,300
81624 Collbran , CO Standard 1,492 $91,739 $472,600
81625 Craig , CO Standard 12,307 $75,812 $295,500
81626 Craig , CO No street area — — —
81630 De Beque , CO Standard 1,058 $64,875 $269,400
81631 Eagle , CO Standard 8,958 $113,662 $735,800
81632 Edwards , CO Standard 10,965 $83,712 $904,400
81633 Dinosaur , CO Standard 0 — —
81635 Parachute , CO Standard 7,486 $73,278 $311,200
81636 Battlement Mesa , CO No street area — — —
81637 Gypsum , CO Standard 10,744 $109,209 $616,200
81638 Hamilton , CO Standard 69 — —
81639 Hayden , CO Standard 2,618 $110,404 $443,600
81640 Maybell , CO Standard 209 — $564,800
81641 Meeker , CO Standard 3,621 $63,070 $329,700
81642 Meredith , CO Standard 15 — —
81643 Mesa , CO Standard 1,133 $106,813 $605,300
81645 Minturn , CO Standard 1,028 $102,039 $1,089,600
81646 Molina , CO Standard 115 $67,321 —
81647 New Castle , CO Standard 6,882 $78,352 $456,200
81648 Rangely , CO Standard 2,796 $71,705 $199,300
81649 Red Cliff , CO Standard 345 — $852,000
81650 Rifle , CO Standard 14,083 $81,025 $418,200
81652 Silt , CO Standard 6,271 $101,038 $530,000
81653 Slater , CO Standard 0 — —
81654 Snowmass , CO Standard 1,431 $141,111 $1,122,000
81655 Wolcott , CO Standard 227 $125,539 $2,000,000+
81656 Woody Creek , CO Standard 459 $250,000+ —
81657 Vail , CO Standard 4,835 $100,573 $1,501,800
81658 Vail , CO No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 816.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/816

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