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zipcodes.pro — ZIP/85640

85640

ZIP 85640 is Tumacacori, Arizona, in Santa Cruz County; area code 520; Mountain Standard Time all year.

Type
Standard
Time zone
America/Phoenix
County
Santa Cruz
Metro area
Nogales, AZ
Population
207
Coordinates
31.5690, -111.0447
☼ Live from 85640 — Tumacacori, AZ

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Local time: —

Where 85640 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 85640
  • 🔢 Type 85640 into a pocket calculator and turn it upside down: OhgSB — not quite a word, sorry.
  • ➕ As a number, 85,640 = 2 × 2 × 2 × 5 × 2141. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100111010001000
  • 🏠 Its numerical neighbours: 85639 (Topawa, AZ, 40 mi away) and 85641 (Vail, AZ, 39 mi away).
  • 🔄 Backwards, 85640 becomes 04658 — and that is a real ZIP code: Milbridge, ME, 2,480 miles away.
  • 👥 66 other ZIP codes are made of exactly the same digits (04568, 04658, 04685, 04856, 04865, 05468, …). The farthest-flung twin is 04658 in Milbridge, ME, 2,480 miles away.
  • 🧭 Farther south than 89% of all ZIP codes, and farther west than 86%.
  • 🎯901 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 85640 and you would come out at 31.57°S, 68.96°E — 1,061 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 12m of daylight. Shortest: 10h 05m.
  • 📏 At 2.9 square miles of land, 85640 is bigger than 14% of ZIP codes — room for about 2.2 Central Parks.
🌙 The sky over 85640 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population207This ZIP207
Households85This ZIP85
Housing units165This ZIP165
Median age40.6This ZIP40.6Arizona39.0US 38.9
Median household income$55,417This ZIP$55,417Arizona$79,964US $80,734
Bachelor's degree or higher0.0%
Population density72.3 / sq miThis ZIP72.3 / sq mi

Business and tax activity

Business establishments10This ZIP10
Employees38This ZIP38
Annual payroll$1,636,000This ZIP$1,636,000
Tax returns filed280This ZIP280
Total adjusted gross income$19,834,000This ZIP$19,834,000

Land area

Land area2.86 sq miThis ZIP2.86 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 85640

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

ZIP codes near 85640

ZIPCityDistance
85646 Tubac, AZ 3.6 mi
85648 Rio Rico, AZ 5.6 mi
85628 Nogales, AZ 8.4 mi
85662 Nogales, AZ 8.4 mi
85645 Amado, AZ 10.6 mi
85621 Nogales, AZ 15.1 mi
85622 Green Valley, AZ 16.4 mi
85601 Arivaca, AZ 16.9 mi
85614 Green Valley, AZ 18.0 mi
85624 Patagonia, AZ 19.2 mi

Find every ZIP code within 10 miles of 85640 →

Questions about this ZIP code

Where is ZIP code 85640?

85640 is in Tumacacori, Arizona, in Santa Cruz County, part of the Nogales, AZ micropolitan area. Its published point location is 31.5690, -111.0447.

What county is 85640 in?

85640 lies in Santa Cruz County.

What area code is 85640?

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

What time zone is 85640 in?

85640 uses America/Phoenix.

How many people live in 85640?

About 207 people live in ZIP code 85640, in 85 households, at 72.3 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 85640?

$55,417 a year, against $79,964 across Arizona.

What ZIP codes are near 85640?

The closest are 85646 (3.6 mi), 85648 (5.6 mi), 85628 (8.4 mi), 85662 (8.4 mi) and 85645 (10.6 mi).

Is 85640 a PO Box ZIP code?

85640 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “85640 ZIP Code — Tumacacori, Arizona (Santa Cruz County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/85640

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