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zipcodes.pro — ZIP/85321

85321

ZIP 85321 is Ajo, Arizona, mostly in Pima County; area code 520; Mountain Standard Time all year.

Type
Standard
Time zone
America/Phoenix
County
Pima +1 more
Metro area
Tucson, AZ
Population
3,555
Coordinates
32.3620, -112.5847
☼ Live from 85321 — Ajo, AZ

Weather right now

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Local time: —

Where 85321 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 85321
  • 🔢 Type 85321 into a pocket calculator and turn it upside down: IZESB — not quite a word, sorry.
  • ➕ As a number, 85,321 = 41 × 2081. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100110101001001
  • 🏠 Its numerical neighbours: 85320 (Aguila, AZ, 108 mi away) and 85322 (Arlington, AZ, 58 mi away).
  • 🔄 Backwards, 85321 becomes 12358, which is not a ZIP code at all.
  • 👥 57 other ZIP codes are made of exactly the same digits (12538, 12583, 12835, 12853, 13825, 15238, …). The farthest-flung twin is 12835 in Hadley, NY, 2,214 miles away.
  • 🧭 Farther south than 87% of all ZIP codes, and farther west than 88%.
  • 🎯935 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 85321 and you would come out at 32.36°S, 67.42°E — 1,042 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 17m of daylight. Shortest: 10h 01m.
  • 📏 At 1,343.8 square miles of land, 85321 is bigger than 99% of ZIP codes — room for about 1,020 Central Parks.
🌙 The sky over 85321 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,555This ZIP3,555
Households1,656This ZIP1,656
Housing units2,291This ZIP2,291
Median age58.9This ZIP58.9Arizona39.0US 38.9
Median household income$53,180This ZIP$53,180Arizona$79,964US $80,734
Median home value$119,000This ZIP$119,000Arizona$394,500US $332,700
Median gross rent$875This ZIP$875Arizona$1,543US $1,413
Bachelor's degree or higher25.4%This ZIP25.4%
Mean commute17.7 minThis ZIP17.7 min
Population density2.6 / sq miThis ZIP2.6 / sq mi

Business and tax activity

Business establishments52This ZIP52
Employees406This ZIP406
Annual payroll$17,904,000This ZIP$17,904,000
Tax returns filed1,390This ZIP1,390
Total adjusted gross income$63,904,000This ZIP$63,904,000

Land area

Land area1,343.78 sq miThis ZIP1,343.78 sq mi
Water area0.06 sq miThis ZIP0.06 sq mi

Counties 85321 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Pima County 89.0%
Maricopa County 11.0%

Other place names in 85321

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

ZIP codes near 85321

ZIPCityDistance
85341 Lukeville, AZ 28.0 mi
85634 Sells, AZ 40.9 mi
85139 Maricopa, AZ 44.6 mi
85337 Gila Bend, AZ 45.4 mi
85172 Stanfield, AZ 52.4 mi
85193 Casa Grande, AZ 53.4 mi
85138 Maricopa, AZ 56.9 mi
85322 Arlington, AZ 57.6 mi
85123 Arizona City, AZ 58.1 mi
85333 Dateland, AZ 59.8 mi

Find every ZIP code within 10 miles of 85321 →

Questions about this ZIP code

Where is ZIP code 85321?

85321 is in Ajo, Arizona, in Pima County, part of the Tucson, AZ metropolitan area. Its published point location is 32.3620, -112.5847.

What county is 85321 in?

85321 spans 2 counties: Pima County and Maricopa County. Most of it falls in Pima 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 85321?

Ajo uses area code 520, from NANPA's telephone records.

What time zone is 85321 in?

85321 uses America/Phoenix.

How many people live in 85321?

About 3,555 people live in ZIP code 85321, in 1,656 households, at 2.6 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 85321?

$53,180 a year, against $79,964 across Arizona.

What ZIP codes are near 85321?

The closest are 85341 (28 mi), 85634 (40.9 mi), 85139 (44.6 mi), 85337 (45.4 mi) and 85172 (52.4 mi).

Is 85321 a PO Box ZIP code?

85321 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “85321 ZIP Code — Ajo, Arizona (Pima County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/85321

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