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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/95203

95203

ZIP 95203 is in Stockton, California, in San Joaquin County; area codes 209 and 350; Pacific time. Stockton has 20 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
County
San Joaquin
Metro area
Stockton-Lodi, CA
Population
15,930
Coordinates
37.9543, -121.3293
☼ Live from 95203 — Stockton, CA

Weather right now

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Local time: —

Where 95203 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 95203
  • 🔢 Type 95203 into a pocket calculator and turn it upside down: EOZSG — not quite a word, sorry.
  • ➕ 95203 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111001111100011
  • 🏠 Its numerical neighbours: 95202 (Stockton, CA, 2 mi away) and 95204 (Stockton, CA, 1 mi away).
  • 🔄 Backwards, 95203 becomes 30259 — and that is a real ZIP code: Moreland, GA, 2,067 miles away.
  • 👥 57 other ZIP codes are made of exactly the same digits (02359, 02539, 03259, 03592, 09235, 09352, …). The farthest-flung twin is 09352 in APO AE, a military post office, 5,724 miles away.
  • 🧭 Farther south than 58% of all ZIP codes, and farther west than 94%.
  • 🎯1,227 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 95203 and you would come out at 37.95°S, 58.67°E — 974 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 48m of daylight. Shortest: 9h 32m.
  • 📏 At 6.2 square miles of land, 95203 is bigger than 21% of ZIP codes — room for about 4.7 Central Parks.
🌙 The sky over 95203 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population15,930This ZIP15,930
Households5,392This ZIP5,392
Housing units5,754This ZIP5,754
Median age35.2This ZIP35.2California37.9US 38.9
Median household income$63,411This ZIP$63,411California$99,122US $80,734
Median home value$370,000This ZIP$370,000California$734,700US $332,700
Median gross rent$1,312This ZIP$1,312California$2,036US $1,413
Bachelor's degree or higher19.6%This ZIP19.6%
Mean commute30.9 minThis ZIP30.9 min
Population density2,583.9 / sq miThis ZIP2,583.9 / sq mi

Business and tax activity

Business establishments300This ZIP300
Employees4,381This ZIP4,381
Annual payroll$271,154,000This ZIP$271,154,000
Tax returns filed6,490This ZIP6,490
Total adjusted gross income$326,759,000This ZIP$326,759,000

Land area

Land area6.17 sq miThis ZIP6.17 sq mi
Water area0.58 sq miThis ZIP0.58 sq mi

Other place names in 95203

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

ZIP codes near 95203

ZIPCityDistance
95204 Stockton, CA 1.5 mi
95211 Stockton, CA 2.0 mi
95296 Stockton, CA 2.1 mi
95202 Stockton, CA 2.3 mi
95201 Stockton, CA 2.3 mi
95267 Stockton, CA 3.2 mi
95207 Stockton, CA 3.3 mi
95297 Stockton, CA 3.3 mi
95205 Stockton, CA 3.9 mi
95269 Stockton, CA 4.5 mi

Find every ZIP code within 10 miles of 95203 →

Questions about this ZIP code

Where is ZIP code 95203?

95203 is in Stockton, California, in San Joaquin County, part of the Stockton-Lodi, CA metropolitan area. Its published point location is 37.9543, -121.3293.

What county is 95203 in?

95203 lies in San Joaquin County.

What area code is 95203?

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

What time zone is 95203 in?

95203 uses America/Los_Angeles.

How many people live in 95203?

About 15,930 people live in ZIP code 95203, in 5,392 households, at 2,583.9 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 95203?

$63,411 a year, against $99,122 across California.

What ZIP codes are near 95203?

The closest are 95204 (1.5 mi), 95211 (2 mi), 95296 (2.1 mi), 95202 (2.3 mi) and 95201 (2.3 mi).

Is 95203 a PO Box ZIP code?

95203 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “95203 ZIP Code — Stockton, California (San Joaquin County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/95203

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