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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/85204

85204

ZIP 85204 is in Mesa, Arizona, in Maricopa County; Mountain Standard Time all year. Mesa has 19 ZIP codes in all.

Type
Standard
Time zone
America/Phoenix
County
Maricopa
Population
65,155
Coordinates
33.3957, -111.7866
☼ Live from 85204 — Mesa, AZ

Weather right now

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Local time: —

Where 85204 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 85204
  • 🔢 Type 85204 into a pocket calculator and turn it upside down: hOZSB — not quite a word, sorry.
  • ➕ As a number, 85,204 = 2 × 2 × 7 × 17 × 179. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100110011010100
  • 🏠 Its numerical neighbours: 85203 (Mesa, AZ, 4 mi away) and 85205 (Mesa, AZ, 5 mi away).
  • 🔄 Backwards, 85204 becomes 40258 — and that is a real ZIP code: Louisville, KY, 1,484 miles away.
  • 👥 62 other ZIP codes are made of exactly the same digits (02458, 02584, 04258, 04285, 04852, 05482, …). The farthest-flung twin is 04852 in Monhegan, ME, 2,375 miles away.
  • 🧭 Farther south than 83% of all ZIP codes, and farther west than 87%.
  • 🎯855 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 85204 and you would come out at 33.40°S, 68.21°E — 1,107 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 22m of daylight. Shortest: 9h 56m.
  • 📏 At 9.9 square miles of land, 85204 is bigger than 27% of ZIP codes — room for about 7.5 Central Parks.
🌙 The sky over 85204 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population65,155This ZIP65,155
Households23,298This ZIP23,298
Housing units24,537This ZIP24,537
Median age33.7This ZIP33.7Arizona39.0US 38.9
Median household income$72,216This ZIP$72,216Arizona$79,964US $80,734
Median home value$351,300This ZIP$351,300Arizona$394,500US $332,700
Median gross rent$1,566This ZIP$1,566Arizona$1,543US $1,413
Bachelor's degree or higher20.5%This ZIP20.5%
Mean commute24.8 minThis ZIP24.8 min
Population density6,576.0 / sq miThis ZIP6,576.0 / sq mi

Business and tax activity

Business establishments1,237This ZIP1,237
Employees16,824This ZIP16,824
Annual payroll$808,869,000This ZIP$808,869,000
Tax returns filed26,960This ZIP26,960
Total adjusted gross income$1,459,178,000This ZIP$1,459,178,000

Land area

Land area9.91 sq miThis ZIP9.91 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

Other place names in 85204

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

ZIP codes near 85204

ZIPCityDistance
85214 Mesa, AZ 2.9 mi
85216 Mesa, AZ 2.9 mi
85274 Mesa, AZ 2.9 mi
85275 Mesa, AZ 2.9 mi
85277 Mesa, AZ 2.9 mi
85299 Gilbert, AZ 3.0 mi
85210 Mesa, AZ 3.3 mi
85233 Gilbert, AZ 3.3 mi
85234 Gilbert, AZ 3.4 mi
85213 Mesa, AZ 3.8 mi

Find every ZIP code within 10 miles of 85204 →

Questions about this ZIP code

Where is ZIP code 85204?

85204 is in Mesa, Arizona, in Maricopa County, part of the Phoenix-Mesa-Chandler, AZ metropolitan area. Its published point location is 33.3957, -111.7866.

What county is 85204 in?

85204 lies in Maricopa County.

What time zone is 85204 in?

85204 uses America/Phoenix.

How many people live in 85204?

About 65,155 people live in ZIP code 85204, in 23,298 households, at 6,576.0 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 85204?

$72,216 a year, against $79,964 across Arizona.

What ZIP codes are near 85204?

The closest are 85214 (2.9 mi), 85216 (2.9 mi), 85274 (2.9 mi), 85275 (2.9 mi) and 85277 (2.9 mi).

Is 85204 a PO Box ZIP code?

85204 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “85204 ZIP Code — Mesa, Arizona (Maricopa County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/85204

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