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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/85601

85601

ZIP 85601 is Arivaca, Arizona, in Pima County; area code 520; Mountain Standard Time all year.

Type
Standard
Time zone
America/Phoenix
County
Pima
Metro area
Tucson, AZ
Population
268
Coordinates
31.5835, -111.3311
☼ Live from 85601 — Arivaca, AZ

Weather right now

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Local time: —

Where 85601 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 85601
  • 🔢 Type 85601 into a pocket calculator and turn it upside down: IOgSB — not quite a word, sorry.
  • ➕ 85601 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100111001100001
  • 🏠 Its numerical neighbours: 85554 (Young, AZ, 168 mi away) and 85602 (Benson, AZ, 67 mi away).
  • 🔄 Backwards, 85601 becomes 10658, which is not a ZIP code at all.
  • 👥 51 other ZIP codes are made of exactly the same digits (01568, 01586, 01865, 05681, 05861, 06518, …). The farthest-flung twin is 01865 in Nutting Lake, MA, 2,310 miles away.
  • 🧭 Farther south than 89% of all ZIP codes, and farther west than 86%.
  • 🎯913 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 85601 and you would come out at 31.58°S, 68.67°E — 1,050 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 13m of daylight. Shortest: 10h 05m.
  • 📏 At 165.8 square miles of land, 85601 is bigger than 88% of ZIP codes — room for about 126 Central Parks.
🌙 The sky over 85601 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population268This ZIP268
Households172This ZIP172
Housing units294This ZIP294
Median age67.1This ZIP67.1Arizona39.0US 38.9
Median household income$30,542This ZIP$30,542Arizona$79,964US $80,734
Median home value$71,600This ZIP$71,600Arizona$394,500US $332,700
Bachelor's degree or higher34.6%This ZIP34.6%
Population density1.6 / sq miThis ZIP1.6 / sq mi

Business and tax activity

Business establishments16This ZIP16
Employees80This ZIP80
Annual payroll$2,094,000This ZIP$2,094,000

Land area

Land area165.85 sq miThis ZIP165.85 sq mi
Water area0.15 sq miThis ZIP0.15 sq mi

Other place names in 85601

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

ZIP codes near 85601

ZIPCityDistance
85633 Sasabe, AZ 11.8 mi
85645 Amado, AZ 13.6 mi
85646 Tubac, AZ 16.7 mi
85640 Tumacacori, AZ 16.9 mi
85736 Tucson, AZ 20.0 mi
85648 Rio Rico, AZ 20.3 mi
85622 Green Valley, AZ 20.7 mi
85639 Topawa, AZ 24.4 mi
85628 Nogales, AZ 25.1 mi
85662 Nogales, AZ 25.1 mi

Find every ZIP code within 10 miles of 85601 →

Questions about this ZIP code

Where is ZIP code 85601?

85601 is in Arivaca, Arizona, in Pima County, part of the Tucson, AZ metropolitan area. Its published point location is 31.5835, -111.3311.

What county is 85601 in?

85601 lies in Pima County.

What area code is 85601?

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

What time zone is 85601 in?

85601 uses America/Phoenix.

How many people live in 85601?

About 268 people live in ZIP code 85601, in 172 households, at 1.6 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 85601?

$30,542 a year, against $79,964 across Arizona.

What ZIP codes are near 85601?

The closest are 85633 (11.8 mi), 85645 (13.6 mi), 85646 (16.7 mi), 85640 (16.9 mi) and 85736 (20 mi).

Is 85601 a PO Box ZIP code?

85601 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “85601 ZIP Code — Arivaca, Arizona (Pima County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/85601

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