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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/95310

95310

ZIP 95310 is Columbia, California, in Tuolumne County; area codes 209 and 350; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Tuolumne
Metro area
Sonora, CA
Population
1,356
Coordinates
38.0858, -120.3786
☼ Live from 95310 — Columbia, CA

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Local time: —

Where 95310 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 95310
  • 🔢 Type 95310 into a pocket calculator and turn it upside down: OIESG — not quite a word, sorry.
  • ➕ As a number, 95,310 = 2 × 3 × 3 × 3 × 5 × 353. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111010001001110
  • 🏠 Its numerical neighbours: 95309 (Chinese Camp, CA, 15 mi away) and 95311 (Coulterville, CA, 31 mi away).
  • 🔄 Backwards, 95310 becomes 01359, which is not a ZIP code at all.
  • 👥 46 other ZIP codes are made of exactly the same digits (09351, 10953, 13905, 15930, 19035, 19053, …). The farthest-flung twin is 09351 in APO AE, a military post office, 5,701 miles away.
  • 🧭 Farther south than 58% of all ZIP codes, and farther west than 94%.
  • 🎯1,174 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 95310 and you would come out at 38.09°S, 59.62°E — 939 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 49m of daylight. Shortest: 9h 31m.
  • 📏 At 44.7 square miles of land, 95310 is bigger than 56% of ZIP codes — room for about 34 Central Parks.
🌙 The sky over 95310 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,356This ZIP1,356
Households618This ZIP618
Housing units849This ZIP849
Median age61.4This ZIP61.4California37.9US 38.9
Median household income$54,697This ZIP$54,697California$99,122US $80,734
Median home value$434,800This ZIP$434,800California$734,700US $332,700
Median gross rent$1,131This ZIP$1,131California$2,036US $1,413
Bachelor's degree or higher32.5%This ZIP32.5%
Mean commute24.8 minThis ZIP24.8 min
Population density30.3 / sq miThis ZIP30.3 / sq mi

Business and tax activity

Business establishments42This ZIP42
Employees291This ZIP291
Annual payroll$15,079,000This ZIP$15,079,000
Tax returns filed990This ZIP990
Total adjusted gross income$77,776,000This ZIP$77,776,000

Land area

Land area44.73 sq miThis ZIP44.73 sq mi
Water area1.03 sq miThis ZIP1.03 sq mi

Other place names in 95310

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

ZIP codes near 95310

ZIPCityDistance
95251 Vallecito, CA 4.1 mi
95229 Douglas Flat, CA 4.5 mi
95247 Murphys, CA 5.0 mi
95233 Hathaway Pines, CA 7.0 mi
95370 Sonora, CA 7.2 mi
95383 Twain Harte, CA 7.9 mi
95373 Standard, CA 9.0 mi
95372 Soulsbyville, CA 9.1 mi
95221 Altaville, CA 9.3 mi
95224 Avery, CA 10.5 mi

Find every ZIP code within 10 miles of 95310 →

Questions about this ZIP code

Where is ZIP code 95310?

95310 is in Columbia, California, in Tuolumne County, part of the Sonora, CA micropolitan area. Its published point location is 38.0858, -120.3786.

What county is 95310 in?

95310 lies in Tuolumne County.

What area code is 95310?

Columbia uses area codes 209 and 350, from NANPA's telephone records.

What time zone is 95310 in?

95310 uses America/Los_Angeles.

How many people live in 95310?

About 1,356 people live in ZIP code 95310, in 618 households, at 30.3 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 95310?

$54,697 a year, against $99,122 across California.

What ZIP codes are near 95310?

The closest are 95251 (4.1 mi), 95229 (4.5 mi), 95247 (5 mi), 95233 (7 mi) and 95370 (7.2 mi).

Is 95310 a PO Box ZIP code?

95310 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “95310 ZIP Code — Columbia, California (Tuolumne County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/95310

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