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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/92173

92173

ZIP 92173 is in San Ysidro, California, in San Diego County; Pacific time. San Ysidro has 2 ZIP codes; the other is 92143.

Type
Standard
Time zone
America/Los_Angeles
County
San Diego
Population
27,585
Coordinates
32.5556, -117.0512
☼ Live from 92173 — San Ysidro, CA

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Where 92173 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 92173
  • 🔢 Type 92173 into a pocket calculator and turn it upside down: ELIZG — not quite a word, sorry.
  • ➕ 92173 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110100000001101
  • 🏠 Its numerical neighbours: 92172 (San Diego, CA, 13 mi away) and 92174 (San Diego, CA, 13 mi away).
  • 🔄 Backwards, 92173 becomes 37129 — and that is a real ZIP code: Murfreesboro, TN, 1,756 miles away.
  • 👥 50 other ZIP codes are made of exactly the same digits (12937, 12973, 17239, 17329, 17923, 17932, …). The farthest-flung twin is 12937 in Fort Covington, NY, 2,416 miles away.
  • 🧭 Farther south than 86% of all ZIP codes, and farther west than 90%.
  • 🎯1,143 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 92173 and you would come out at 32.56°S, 62.95°E — 920 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 18m of daylight. Shortest: 10h 00m.
  • 📏 At 2.9 square miles of land, 92173 is bigger than 14% of ZIP codes — room for about 2.2 Central Parks.
🌙 The sky over 92173 today
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🌋 Shake report
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Source: USGS.

People and housing

Population27,585This ZIP27,585
Households7,952This ZIP7,952
Housing units8,396This ZIP8,396
Median age35.9This ZIP35.9California37.9US 38.9
Median household income$69,792This ZIP$69,792California$99,122US $80,734
Median home value$535,000This ZIP$535,000California$734,700US $332,700
Median gross rent$1,707This ZIP$1,707California$2,036US $1,413
Bachelor's degree or higher9.9%This ZIP9.9%
Mean commute28.9 minThis ZIP28.9 min
Population density9,588.1 / sq miThis ZIP9,588.1 / sq mi

Business and tax activity

Business establishments591This ZIP591
Employees7,622This ZIP7,622
Annual payroll$308,406,000This ZIP$308,406,000
Tax returns filed27,030This ZIP27,030
Total adjusted gross income$1,118,471,000This ZIP$1,118,471,000

Land area

Land area2.88 sq miThis ZIP2.88 sq mi
Water area0.00 sq mi

Other place names in 92173

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

ZIP codes near 92173

ZIPCityDistance
91911 Chula Vista, CA 3.6 mi
91932 Imperial Beach, CA 3.8 mi
91933 Imperial Beach, CA 4.1 mi
92154 San Diego, CA 5.2 mi
91910 Chula Vista, CA 5.7 mi
91913 Chula Vista, CA 6.0 mi
91909 Chula Vista, CA 6.1 mi
91912 Chula Vista, CA 6.1 mi
91921 Chula Vista, CA 6.1 mi
92179 San Diego, CA 7.1 mi

Find every ZIP code within 10 miles of 92173 →

Questions about this ZIP code

Where is ZIP code 92173?

92173 is in San Ysidro, California, in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metropolitan area. Its published point location is 32.5556, -117.0512.

What county is 92173 in?

92173 lies in San Diego County.

What time zone is 92173 in?

92173 uses America/Los_Angeles.

How many people live in 92173?

About 27,585 people live in ZIP code 92173, in 7,952 households, at 9,588.1 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 92173?

$69,792 a year, against $99,122 across California.

What ZIP codes are near 92173?

The closest are 91911 (3.6 mi), 91932 (3.8 mi), 91933 (4.1 mi), 92154 (5.2 mi) and 91910 (5.7 mi).

Is 92173 a PO Box ZIP code?

92173 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “92173 ZIP Code — San Ysidro, California (San Diego County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/92173

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