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 — ZIP/81525

81525

ZIP 81525 is Mack, Colorado, in Mesa County; area code 970; Mountain time.

Type
Standard
Time zone
America/Denver
County
Mesa
Metro area
Grand Junction, CO
Population
1,127
Coordinates
39.2595, -108.9673
☼ Live from 81525 — Mack, CO

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 81525 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 81525
  • 🔢 Type 81525 into a pocket calculator and turn it upside down: SZSIB — not quite a word, sorry.
  • ➕ As a number, 81,525 = 3 × 5 × 5 × 1087. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011111001110101
  • 🏠 Its numerical neighbours: 81524 (Loma, CO, 13 mi away) and 81526 (Palisade, CO, 35 mi away).
  • 🔄 Backwards, 81525 becomes 52518, which is not a ZIP code at all.
  • 👥 20 other ZIP codes are made of exactly the same digits (12585, 12855, 15258, 15825, 18255, 25185, …). The farthest-flung twin is 12585 in Verbank, NY, 1,848 miles away.
  • 🧭 Farther north than 51% of all ZIP codes, and farther west than 85%.
  • 🎯555 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 81525 and you would come out at 39.26°S, 71.03°E — 698 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
  • 📏 At 154.8 square miles of land, 81525 is bigger than 87% of ZIP codes — room for about 118 Central Parks.
🌙 The sky over 81525 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,127This ZIP1,127
Households412This ZIP412
Housing units428This ZIP428
Median age44.9This ZIP44.9Colorado37.7US 38.9
Median household income$113,796This ZIP$113,796Colorado$95,470US $80,734
Median home value$429,500This ZIP$429,500Colorado$539,400US $332,700
Median gross rent$1,763This ZIP$1,763Colorado$1,761US $1,413
Bachelor's degree or higher22.7%This ZIP22.7%
Mean commute28.1 minThis ZIP28.1 min
Population density7.3 / sq miThis ZIP7.3 / sq mi

Business and tax activity

Business establishments24This ZIP24
Employees49This ZIP49
Annual payroll$2,391,000This ZIP$2,391,000
Tax returns filed510This ZIP510
Total adjusted gross income$44,491,000This ZIP$44,491,000

Land area

Land area154.81 sq miThis ZIP154.81 sq mi
Water area0.75 sq miThis ZIP0.75 sq mi

ZIP codes near 81525

ZIPCityDistance
81521 Fruita, CO 8.5 mi
81524 Loma, CO 12.7 mi
81505 Grand Junction, CO 20.5 mi
81523 Glade Park, CO 23.5 mi
81506 Grand Junction, CO 23.8 mi
81507 Grand Junction, CO 24.2 mi
81630 De Beque, CO 25.5 mi
81501 Grand Junction, CO 26.0 mi
81504 Grand Junction, CO 27.4 mi
84540 Thompson, UT 29.8 mi

Find every ZIP code within 10 miles of 81525 →

Questions about this ZIP code

Where is ZIP code 81525?

81525 is in Mack, Colorado, in Mesa County, part of the Grand Junction, CO metropolitan area. Its published point location is 39.2595, -108.9673.

What county is 81525 in?

81525 lies in Mesa County.

What area code is 81525?

Mack uses area code 970, from NANPA's telephone records.

What time zone is 81525 in?

81525 uses America/Denver.

How many people live in 81525?

About 1,127 people live in ZIP code 81525, in 412 households, at 7.3 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 81525?

$113,796 a year, against $95,470 across Colorado.

What ZIP codes are near 81525?

The closest are 81521 (8.5 mi), 81524 (12.7 mi), 81505 (20.5 mi), 81523 (23.5 mi) and 81506 (23.8 mi).

Is 81525 a PO Box ZIP code?

81525 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “81525 ZIP Code — Mack, Colorado (Mesa County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81525

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/81525.json

Underlying data is public domain or openly licensed — sources, vintages and licences.