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zipcodes.pro — ZIP/94027

94027

ZIP 94027 is Atherton, California, in San Mateo County; area code 650; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
San Mateo
Population
7,002
Coordinates
37.4571, -122.2011
☼ Live from 94027 — Atherton, CA

Weather right now

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NEXRAD radar
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Local time: —

Where 94027 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 94027
  • 🔢 Type 94027 into a pocket calculator and turn it upside down: LZOhG — not quite a word, sorry.
  • ➕ As a number, 94,027 = 17 × 5531. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111101001011
  • 🏠 Its numerical neighbours: 94026 (Menlo Park, CA, 9 mi away) and 94028 (Portola Valley, CA, 6 mi away).
  • 🔄 Backwards, 94027 becomes 72049, which is not a ZIP code at all.
  • 👥 53 other ZIP codes are made of exactly the same digits (02479, 04927, 04972, 07924, 09472, 09724, …). The farthest-flung twin is 09724 in APO AE, a military post office, 5,529 miles away.
  • 🧭 Farther south than 62% of all ZIP codes, and farther west than 96%.
  • 🎯1,281 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94027 and you would come out at 37.46°S, 57.80°E — 1,029 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 45m of daylight. Shortest: 9h 34m.
  • 📏 At 5.0 square miles of land, 94027 is bigger than 19% of ZIP codes — room for about 3.8 Central Parks.
🌙 The sky over 94027 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population7,002This ZIP7,002
Households2,236This ZIP2,236
Housing units2,676This ZIP2,676
Median age49.1This ZIP49.1California37.9US 38.9
Median household income$250,000+This ZIP$250,000+California$99,122US $80,734
Median home value$2,000,000+This ZIP$2,000,000+California$734,700US $332,700
Median gross rent$3,500+This ZIP$3,500+California$2,036US $1,413
Bachelor's degree or higher83.2%This ZIP83.2%
Mean commute23.1 minThis ZIP23.1 min
Population density1,392.9 / sq miThis ZIP1,392.9 / sq mi

Business and tax activity

Business establishments180This ZIP180
Employees1,883This ZIP1,883
Annual payroll$168,104,000This ZIP$168,104,000
Tax returns filed3,050This ZIP3,050
Total adjusted gross income$4,841,930,000This ZIP$4,841,930,000

Land area

Land area5.03 sq miThis ZIP5.03 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Other place names in 94027

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

ZIP codes near 94027

ZIPCityDistance
94025 Menlo Park, CA 1.1 mi
94061 Redwood City, CA 2.0 mi
94063 Redwood City, CA 2.5 mi
94301 Palo Alto, CA 2.9 mi
94305 Stanford, CA 3.2 mi
94302 Palo Alto, CA 3.4 mi
94309 Palo Alto, CA 3.4 mi
94304 Palo Alto, CA 4.5 mi
94303 Palo Alto, CA 4.7 mi
94070 San Carlos, CA 4.8 mi

Find every ZIP code within 10 miles of 94027 →

Questions about this ZIP code

Where is ZIP code 94027?

94027 is in Atherton, California, in San Mateo County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.4571, -122.2011.

What county is 94027 in?

94027 lies in San Mateo County.

What area code is 94027?

Atherton uses area code 650, from NANPA's telephone records.

What time zone is 94027 in?

94027 uses America/Los_Angeles.

How many people live in 94027?

About 7,002 people live in ZIP code 94027, in 2,236 households, at 1,392.9 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 94027?

$250,000+ a year, against $99,122 across California.

What ZIP codes are near 94027?

The closest are 94025 (1.1 mi), 94061 (2 mi), 94063 (2.5 mi), 94301 (2.9 mi) and 94305 (3.2 mi).

Is 94027 a PO Box ZIP code?

94027 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94027 ZIP Code — Atherton, California (San Mateo County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94027

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