Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/85143

85143

ZIP 85143 is in San Tan Valley, Arizona, in Pinal County; area code 520; Mountain Standard Time all year. San Tan Valley has 3 ZIP codes; the others are 85140 and 85144.

Type
Standard
Time zone
America/Phoenix
County
Pinal
Population
44,444
Coordinates
33.1560, -111.5198
☼ Live from 85143 — San Tan Valley, AZ

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 85143 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 85143
  • 🔢 Type 85143 into a pocket calculator and turn it upside down: EhISB — not quite a word, sorry.
  • ➕ As a number, 85,143 = 3 × 101 × 281. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10100110010010111
  • 🏠 Its numerical neighbours: 85142 (Queen Creek, AZ, 9 mi away) and 85144 (San Tan Valley, AZ, 2 mi away).
  • 🔄 Backwards, 85143 becomes 34158, which is not a ZIP code at all.
  • 👥 47 other ZIP codes are made of exactly the same digits (13485, 13845, 14538, 14853, 15348, 15438, …). The farthest-flung twin is 18435 in Lackawaxen, PA, 2,070 miles away.
  • 🧭 Farther south than 84% of all ZIP codes, and farther west than 86%.
  • 🎯853 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 85143 and you would come out at 33.16°S, 68.48°E — 1,122 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 21m of daylight. Shortest: 9h 57m.
  • 📏 At 31.3 square miles of land, 85143 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 85143 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population44,444This ZIP44,444
Households14,242This ZIP14,242
Housing units15,999This ZIP15,999
Median age37.4This ZIP37.4Arizona39.0US 38.9
Median household income$93,707This ZIP$93,707Arizona$79,964US $80,734
Median home value$389,200This ZIP$389,200Arizona$394,500US $332,700
Median gross rent$2,074This ZIP$2,074Arizona$1,543US $1,413
Bachelor's degree or higher22.2%This ZIP22.2%
Mean commute36.2 minThis ZIP36.2 min
Population density1,421.1 / sq miThis ZIP1,421.1 / sq mi

Business and tax activity

Business establishments349This ZIP349
Employees3,057This ZIP3,057
Annual payroll$104,452,000This ZIP$104,452,000
Tax returns filed19,020This ZIP19,020
Total adjusted gross income$1,235,736,000This ZIP$1,235,736,000

Land area

Land area31.28 sq miThis ZIP31.28 sq mi
Water area0.00 sq mi

Other place names in 85143

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

ZIP codes near 85143

ZIPCityDistance
85144 San Tan Valley, AZ 2.5 mi
85140 San Tan Valley, AZ 6.6 mi
85142 Queen Creek, AZ 8.8 mi
85127 Chandler Heights, AZ 11.0 mi
85147 Sacaton, AZ 12.5 mi
85191 Valley Farms, AZ 12.5 mi
85212 Mesa, AZ 13.1 mi
85128 Coolidge, AZ 13.4 mi
85298 Gilbert, AZ 13.4 mi
85297 Gilbert, AZ 15.0 mi

Find every ZIP code within 10 miles of 85143 →

Questions about this ZIP code

Where is ZIP code 85143?

85143 is in San Tan Valley, Arizona, in Pinal County, part of the Phoenix-Mesa-Chandler, AZ metropolitan area. Its published point location is 33.1560, -111.5198.

What county is 85143 in?

85143 lies in Pinal County.

What area code is 85143?

San Tan Valley uses area code 520, from NANPA's telephone records.

What time zone is 85143 in?

85143 uses America/Phoenix.

How many people live in 85143?

About 44,444 people live in ZIP code 85143, in 14,242 households, at 1,421.1 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 85143?

$93,707 a year, against $79,964 across Arizona.

What ZIP codes are near 85143?

The closest are 85144 (2.5 mi), 85140 (6.6 mi), 85142 (8.8 mi), 85127 (11 mi) and 85147 (12.5 mi).

Is 85143 a PO Box ZIP code?

85143 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “85143 ZIP Code — San Tan Valley, Arizona (Pinal County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/85143

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/85143.json

Underlying data is public domain or openly licensed — sources, vintages and licences.