80504
ZIP 80504 is in Longmont, Colorado, mostly in Weld County; area codes 720, 303 and 983; Mountain time. Longmont has 4 ZIP codes; the others are 80501, 80502 and 80503.
- Type
- Standard
- Time zone
- America/Denver
- County
- Weld +2 more
- Metro area
- Greeley, CO
- Population
- 63,451
- Coordinates
- 40.1656, -105.0292
Weather right now
Asking the National Weather Service…
Where 80504 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.
- 🔢 Type 80504 into a pocket calculator and turn it upside down: hOSOB — not quite a word, sorry.
- ➕ As a number, 80,504 = 2 × 2 × 2 × 29 × 347. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011101001111000 - 🏠 Its numerical neighbours: 80503 (Longmont, CO, 10 mi away) and 80510 (Allenspark, CO, 31 mi away).
- 🔄 Backwards, 80504 becomes 40508 — and that is a real ZIP code: Lexington, KY, 1,107 miles away.
- 👥 27 other ZIP codes are made of exactly the same digits (04085, 04850, 05048, 05084, 05408, 05840, …). The farthest-flung twin is 04850 in Lincolnville Center, ME, 1,845 miles away.
- 🧭 Farther north than 58% of all ZIP codes, and farther west than 83%.
- 🎯342 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 80504 and you would come out at 40.17°S, 74.97°E — 676 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 18m.
- 📏 At 94.6 square miles of land, 80504 is bigger than 76% of ZIP codes — room for about 72 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 63,451This ZIP63,451 |
|---|---|
| Households | 24,077This ZIP24,077 |
| Housing units | 24,615This ZIP24,615 |
| Median age | 39.5This ZIP39.5Colorado37.7US 38.9 |
| Median household income | $113,643This ZIP$113,643Colorado$95,470US $80,734 |
| Median home value | $591,700This ZIP$591,700Colorado$539,400US $332,700 |
| Median gross rent | $1,996This ZIP$1,996Colorado$1,761US $1,413 |
| Bachelor's degree or higher | 44.7%This ZIP44.7% |
| Mean commute | 28.5 minThis ZIP28.5 min |
| Population density | 670.9 / sq miThis ZIP670.9 / sq mi |
Business and tax activity
| Business establishments | 1,192This ZIP1,192 |
|---|---|
| Employees | 14,517This ZIP14,517 |
| Annual payroll | $889,621,000This ZIP$889,621,000 |
| Tax returns filed | 31,180This ZIP31,180 |
| Total adjusted gross income | $3,186,775,000This ZIP$3,186,775,000 |
Land area
| Land area | 94.58 sq miThis ZIP94.58 sq mi |
|---|---|
| Water area | 5.06 sq miThis ZIP5.06 sq mi |
Counties 80504 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Weld County | 58.6% |
| Boulder County | 40.8% |
| Larimer County | 0.6% |
Other place names in 80504
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 80504
| ZIP | City | Distance |
|---|---|---|
80501 | Longmont, CO | 3.8 mi |
80502 | Longmont, CO | 3.8 mi |
80542 | Mead, CO | 5.0 mi |
80520 | Firestone, CO | 6.2 mi |
80530 | Frederick, CO | 7.1 mi |
80514 | Dacono, CO | 7.6 mi |
80516 | Erie, CO | 7.8 mi |
80544 | Niwot, CO | 8.7 mi |
80503 | Longmont, CO | 9.6 mi |
80513 | Berthoud, CO | 10.4 mi |
Find every ZIP code within 10 miles of 80504 →
Questions about this ZIP code
Where is ZIP code 80504?
80504 is in Longmont, Colorado, in Weld County, part of the Greeley, CO metropolitan area. Its published point location is 40.1656, -105.0292.
What county is 80504 in?
80504 spans 3 counties: Weld County, Boulder County and Larimer County. Most of it falls in Weld County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 80504?
Longmont uses area codes 720, 303 and 983, from NANPA's telephone records.
What time zone is 80504 in?
80504 uses America/Denver.
How many people live in 80504?
About 63,451 people live in ZIP code 80504, in 24,077 households, at 670.9 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 80504?
$113,643 a year, against $95,470 across Colorado.
What ZIP codes are near 80504?
The closest are 80501 (3.8 mi), 80502 (3.8 mi), 80542 (5 mi), 80520 (6.2 mi) and 80530 (7.1 mi).
Is 80504 a PO Box ZIP code?
80504 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “80504 ZIP Code — Longmont, Colorado (Weld County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/80504
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/80504.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.