85639
ZIP 85639 is Topawa, 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
- 166
- Coordinates
- 31.7717, -111.6823
Weather right now
Asking the National Weather Service…
Where 85639 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.
- 🔢 Type 85639 into a pocket calculator and turn it upside down: GEgSB — not quite a word, sorry.
- ➕ 85639 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 31, a total 799 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10100111010000111 - 🏠 Its numerical neighbours: 85638 (Tombstone, AZ, 96 mi away) and 85640 (Tumacacori, AZ, 40 mi away).
- 🔄 Backwards, 85639 becomes 93658, which is not a ZIP code at all.
- 👥 33 other ZIP codes are made of exactly the same digits (35896, 35968, 35986, 36859, 38569, 38659, …). The farthest-flung twin is 96853 in Jbphh, HI, 2,926 miles away.
- 🧭 Farther south than 89% of all ZIP codes, and farther west than 86%.
- 🎯920 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 85639 and you would come out at 31.77°S, 68.32°E — 1,045 miles from Port Louis, Mauritius, the nearest big city to that spot.
- ☀Longest day of the year: 14h 14m of daylight. Shortest: 10h 04m.
- 📏 At 118.2 square miles of land, 85639 is bigger than 82% of ZIP codes — room for about 90 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 166This ZIP166 |
|---|---|
| Households | 70This ZIP70 |
| Housing units | 122This ZIP122 |
| Median age | 48.7This ZIP48.7Arizona39.0US 38.9 |
| Median household income | $39,333This ZIP$39,333Arizona$79,964US $80,734 |
| Bachelor's degree or higher | 0.0% |
| Mean commute | 18.0 minThis ZIP18.0 min |
| Population density | 1.4 / sq miThis ZIP1.4 / sq mi |
Land area
| Land area | 118.24 sq miThis ZIP118.24 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 85639
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 85639
| ZIP | City | Distance |
|---|---|---|
85633 | Sasabe, AZ | 14.4 mi |
85736 | Tucson, AZ | 19.7 mi |
85601 | Arivaca, AZ | 24.4 mi |
85634 | Sells, AZ | 25.9 mi |
85735 | Tucson, AZ | 30.7 mi |
85645 | Amado, AZ | 32.1 mi |
85622 | Green Valley, AZ | 34.8 mi |
85629 | Sahuarita, AZ | 36.0 mi |
85646 | Tubac, AZ | 38.6 mi |
85640 | Tumacacori, AZ | 40.0 mi |
Find every ZIP code within 10 miles of 85639 →
Questions about this ZIP code
Where is ZIP code 85639?
85639 is in Topawa, Arizona, in Pima County, part of the Tucson, AZ metropolitan area. Its published point location is 31.7717, -111.6823.
What county is 85639 in?
85639 lies in Pima County.
What area code is 85639?
Topawa uses area code 520, from NANPA's telephone records.
What time zone is 85639 in?
85639 uses America/Phoenix.
How many people live in 85639?
About 166 people live in ZIP code 85639, in 70 households, at 1.4 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 85639?
$39,333 a year, against $79,964 across Arizona.
What ZIP codes are near 85639?
The closest are 85633 (14.4 mi), 85736 (19.7 mi), 85601 (24.4 mi), 85634 (25.9 mi) and 85735 (30.7 mi).
Is 85639 a PO Box ZIP code?
85639 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “85639 ZIP Code — Topawa, Arizona (Pima County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/85639
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/85639.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.