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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/92091

92091

ZIP 92091 is in Rancho Santa Fe, California, in San Diego County; area codes 858 and 619; Pacific time. Rancho Santa Fe has 2 ZIP codes; the other is 92067.

Type
Standard
Time zone
America/Los_Angeles
County
San Diego
Population
972
Coordinates
33.0524, -117.1828
☼ Live from 92091 — Rancho Santa Fe, CA

Weather right now

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Local time: —

Where 92091 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 92091
  • 🔢 Type 92091 into a pocket calculator and turn it upside down: IGOZG — not quite a word, sorry.
  • ➕ As a number, 92,091 = 3 × 30697. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011110111011
  • 🏠 Its numerical neighbours: 92088 (Fallbrook, CA, 23 mi away) and 92092 (La Jolla, CA, 13 mi away).
  • 🔄 Backwards, 92091 becomes 19029 — and that is a real ZIP code: Essington, PA, 2,353 miles away.
  • 👥 21 other ZIP codes are made of exactly the same digits (01929, 02199, 02919, 09192, 10992, 19029, …). The farthest-flung twin is 09192 in APO AE, a military post office, 5,796 miles away.
  • 🧭 Farther south than 84% of all ZIP codes, and farther west than 90%.
  • 🎯1,132 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 92091 and you would come out at 33.05°S, 62.82°E — 949 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 20m of daylight. Shortest: 9h 58m.
  • 📏 At 1.3 square miles of land, 92091 is bigger than 9% of ZIP codes — about 624 football fields.
🌙 The sky over 92091 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population972This ZIP972
Households592This ZIP592
Housing units748This ZIP748
Median age63.1This ZIP63.1California37.9US 38.9
Median household income$103,452This ZIP$103,452California$99,122US $80,734
Median home value$1,487,900This ZIP$1,487,900California$734,700US $332,700
Median gross rent$3,500+This ZIP$3,500+California$2,036US $1,413
Bachelor's degree or higher80.3%This ZIP80.3%
Mean commute28.0 minThis ZIP28.0 min
Population density753.5 / sq miThis ZIP753.5 / sq mi

Business and tax activity

Business establishments106This ZIP106
Employees649This ZIP649
Annual payroll$37,510,000This ZIP$37,510,000
Tax returns filed800This ZIP800
Total adjusted gross income$349,870,000This ZIP$349,870,000

Land area

Land area1.29 sq miThis ZIP1.29 sq mi
Water area0.00 sq mi

Other place names in 92091

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

ZIP codes near 92091

ZIPCityDistance
92067 Rancho Santa Fe, CA 2.2 mi
92029 Escondido, CA 4.1 mi
92127 San Diego, CA 4.1 mi
92024 Encinitas, CA 4.3 mi
92078 San Marcos, CA 4.5 mi
92009 Carlsbad, CA 4.7 mi
92096 San Marcos, CA 5.5 mi
92007 Cardiff By The Sea, CA 5.7 mi
92075 Solana Beach, CA 5.9 mi
92079 San Marcos, CA 6.4 mi

Find every ZIP code within 10 miles of 92091 →

Questions about this ZIP code

Where is ZIP code 92091?

92091 is in Rancho Santa Fe, California, in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metropolitan area. Its published point location is 33.0524, -117.1828.

What county is 92091 in?

92091 lies in San Diego County.

What area code is 92091?

Rancho Santa Fe uses area codes 858 and 619, from NANPA's telephone records.

What time zone is 92091 in?

92091 uses America/Los_Angeles.

How many people live in 92091?

About 972 people live in ZIP code 92091, in 592 households, at 753.5 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 92091?

$103,452 a year, against $99,122 across California.

What ZIP codes are near 92091?

The closest are 92067 (2.2 mi), 92029 (4.1 mi), 92127 (4.1 mi), 92024 (4.3 mi) and 92078 (4.5 mi).

Is 92091 a PO Box ZIP code?

92091 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “92091 ZIP Code — Rancho Santa Fe, California (San Diego County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/92091

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