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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 — ZIP/80520

80520

ZIP 80520 is Firestone, Colorado, in Weld County; Mountain time.

Type
Standard
Time zone
America/Denver
County
Weld
Metro area
Greeley, CO
Population
1,140
Coordinates
40.1141, -104.9334
☼ Live from 80520 — Firestone, CO

Weather right now

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Local time: —

Where 80520 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 80520
  • 🔢 Type 80520 into a pocket calculator and turn it upside down: OZSOB — not quite a word, sorry.
  • ➕ As a number, 80,520 = 2 × 2 × 2 × 3 × 5 × 11 × 61. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011101010001000
  • 🏠 Its numerical neighbours: 80517 (Estes Park, CO, 41 mi away) and 80521 (Fort Collins, CO, 35 mi away).
  • 🔄 Backwards, 80520 becomes 02508, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (05820, 08025, 08052, 08205, 08250, 08502, …). The farthest-flung twin is 05820 in Albany, VT, 1,679 miles away.
  • 🧭 Farther north than 58% of all ZIP codes, and farther west than 83%.
  • 🎯337 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 80520 and you would come out at 40.11°S, 75.07°E — 681 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 02m of daylight. Shortest: 9h 19m.
  • 📏 At 0.589 square miles of land, 80520 is bigger than 6% of ZIP codes — about 285 football fields.
🌙 The sky over 80520 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,140This ZIP1,140
Households582This ZIP582
Housing units582This ZIP582
Median age41.4This ZIP41.4Colorado37.7US 38.9
Median household income$63,529This ZIP$63,529Colorado$95,470US $80,734
Median home value$449,400This ZIP$449,400Colorado$539,400US $332,700
Bachelor's degree or higher29.7%This ZIP29.7%
Mean commute23.5 minThis ZIP23.5 min
Population density1,935.5 / sq miThis ZIP1,935.5 / sq mi

Business and tax activity

Business establishments45This ZIP45
Employees468This ZIP468
Annual payroll$19,309,000This ZIP$19,309,000

Land area

Land area0.59 sq miThis ZIP0.59 sq mi
Water area0.00 sq mi

Other place names in 80520

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 80520

ZIPCityDistance
80530 Frederick, CO 1.0 mi
80514 Dacono, CO 3.2 mi
80504 Longmont, CO 6.2 mi
80516 Erie, CO 6.3 mi
80621 Fort Lupton, CO 7.0 mi
80542 Mead, CO 9.0 mi
80501 Longmont, CO 9.6 mi
80502 Longmont, CO 9.6 mi
80602 Brighton, CO 10.3 mi
80023 Broomfield, CO 10.4 mi

Find every ZIP code within 10 miles of 80520 →

Questions about this ZIP code

Where is ZIP code 80520?

80520 is in Firestone, Colorado, in Weld County, part of the Greeley, CO metropolitan area. Its published point location is 40.1141, -104.9334.

What county is 80520 in?

80520 lies in Weld County.

What time zone is 80520 in?

80520 uses America/Denver.

How many people live in 80520?

About 1,140 people live in ZIP code 80520, in 582 households, at 1,935.5 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 80520?

$63,529 a year, against $95,470 across Colorado.

What ZIP codes are near 80520?

The closest are 80530 (1 mi), 80514 (3.2 mi), 80504 (6.2 mi), 80516 (6.3 mi) and 80621 (7 mi).

Is 80520 a PO Box ZIP code?

80520 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “80520 ZIP Code — Firestone, Colorado (Weld County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/80520

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