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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/95012

95012

ZIP 95012 is Castroville, California, in Monterey County; area code 831; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Monterey
Metro area
Salinas, CA
Population
10,814
Coordinates
36.7888, -121.7349
☼ Live from 95012 — Castroville, CA

Weather right now

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Local time: —

Where 95012 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 95012
  • 🔢 Type 95012 into a pocket calculator and turn it upside down: ZIOSG — not quite a word, sorry.
  • ➕ As a number, 95,012 = 2 × 2 × 23753. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111001100100100
  • 🏠 Its numerical neighbours: 95011 (Campbell, CA, 37 mi away) and 95013 (Coyote, CA, 29 mi away).
  • 🔄 Backwards, 95012 becomes 21059, which is not a ZIP code at all.
  • 👥 51 other ZIP codes are made of exactly the same digits (01259, 01529, 01952, 02915, 09215, 09251, …). The farthest-flung twin is 09251 in APO AE, a military post office, 5,727 miles away.
  • 🧭 Farther south than 65% of all ZIP codes, and farther west than 95%.
  • 🎯1,269 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 95012 and you would come out at 36.79°S, 58.27°E — 1,054 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
  • 📏 At 12.9 square miles of land, 95012 is bigger than 31% of ZIP codes — room for about 9.8 Central Parks.
🌙 The sky over 95012 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population10,814This ZIP10,814
Households2,627This ZIP2,627
Housing units2,735This ZIP2,735
Median age28.5This ZIP28.5California37.9US 38.9
Median household income$80,288This ZIP$80,288California$99,122US $80,734
Median home value$598,900This ZIP$598,900California$734,700US $332,700
Median gross rent$1,468This ZIP$1,468California$2,036US $1,413
Bachelor's degree or higher8.3%This ZIP8.3%
Mean commute25.6 minThis ZIP25.6 min
Population density837.4 / sq miThis ZIP837.4 / sq mi

Business and tax activity

Business establishments168This ZIP168
Employees2,029This ZIP2,029
Annual payroll$132,283,000This ZIP$132,283,000
Tax returns filed5,280This ZIP5,280
Total adjusted gross income$278,038,000This ZIP$278,038,000

Land area

Land area12.91 sq miThis ZIP12.91 sq mi
Water area0.21 sq miThis ZIP0.21 sq mi

Other place names in 95012

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

ZIP codes near 95012

ZIPCityDistance
95039 Moss Landing, CA 3.2 mi
93907 Salinas, CA 4.1 mi
93906 Salinas, CA 7.2 mi
93933 Marina, CA 8.1 mi
95004 Aromas, CA 8.3 mi
95077 Watsonville, CA 8.6 mi
93902 Salinas, CA 8.8 mi
93912 Salinas, CA 8.8 mi
93915 Salinas, CA 8.8 mi
93905 Salinas, CA 10.1 mi

Find every ZIP code within 10 miles of 95012 →

Questions about this ZIP code

Where is ZIP code 95012?

95012 is in Castroville, California, in Monterey County, part of the Salinas, CA metropolitan area. Its published point location is 36.7888, -121.7349.

What county is 95012 in?

95012 lies in Monterey County.

What area code is 95012?

Castroville uses area code 831, from NANPA's telephone records.

What time zone is 95012 in?

95012 uses America/Los_Angeles.

How many people live in 95012?

About 10,814 people live in ZIP code 95012, in 2,627 households, at 837.4 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 95012?

$80,288 a year, against $99,122 across California.

What ZIP codes are near 95012?

The closest are 95039 (3.2 mi), 93907 (4.1 mi), 93906 (7.2 mi), 93933 (8.1 mi) and 95004 (8.3 mi).

Is 95012 a PO Box ZIP code?

95012 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “95012 ZIP Code — Castroville, California (Monterey County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/95012

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