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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/91950

91950

ZIP 91950 is in National City, California, in San Diego County; area codes 619 and 858; Pacific time. National City has 2 ZIP codes; the other is 91951.

Type
Standard
Time zone
America/Los_Angeles
County
San Diego
Population
59,891
Coordinates
32.6691, -117.0935
☼ Live from 91950 — National City, CA

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Local time: —

Where 91950 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 91950
  • 🔢 Type 91950 into a pocket calculator and turn it upside down: OSGIG — not quite a word, sorry.
  • ➕ As a number, 91,950 = 2 × 3 × 5 × 5 × 613. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011100101110
  • 🏠 Its numerical neighbours: 91948 (Mount Laguna, CA, 39 mi away) and 91951 (National City, CA, 1 mi away).
  • 🔄 Backwards, 91950 becomes 05919, which is not a ZIP code at all.
  • 👥 18 other ZIP codes are made of exactly the same digits (10959, 15909, 19095, 19905, 19950, 59019, …). The farthest-flung twin is 99501 in Anchorage, AK, 2,454 miles away.
  • 🧭 Farther south than 86% of all ZIP codes, and farther west than 90%.
  • 🎯1,141 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91950 and you would come out at 32.67°S, 62.91°E — 926 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 18m of daylight. Shortest: 10h 00m.
  • 📏 At 7.3 square miles of land, 91950 is bigger than 23% of ZIP codes — room for about 5.6 Central Parks.
🌙 The sky over 91950 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population59,891This ZIP59,891
Households18,358This ZIP18,358
Housing units19,616This ZIP19,616
Median age35.9This ZIP35.9California37.9US 38.9
Median household income$66,426This ZIP$66,426California$99,122US $80,734
Median home value$612,200This ZIP$612,200California$734,700US $332,700
Median gross rent$1,670This ZIP$1,670California$2,036US $1,413
Bachelor's degree or higher18.0%This ZIP18.0%
Mean commute25.3 minThis ZIP25.3 min
Population density8,162.9 / sq miThis ZIP8,162.9 / sq mi

Business and tax activity

Business establishments1,373This ZIP1,373
Employees23,074This ZIP23,074
Annual payroll$1,122,727,000This ZIP$1,122,727,000
Tax returns filed27,950This ZIP27,950
Total adjusted gross income$1,377,423,000This ZIP$1,377,423,000

Land area

Land area7.34 sq miThis ZIP7.34 sq mi
Water area0.32 sq miThis ZIP0.32 sq mi

Other place names in 91950

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

ZIP codes near 91950

ZIPCityDistance
91951 National City, CA 0.7 mi
92136 San Diego, CA 2.0 mi
91909 Chula Vista, CA 2.1 mi
91912 Chula Vista, CA 2.1 mi
91921 Chula Vista, CA 2.1 mi
92113 San Diego, CA 2.3 mi
92139 San Diego, CA 2.7 mi
91910 Chula Vista, CA 2.9 mi
92114 San Diego, CA 3.5 mi
92102 San Diego, CA 3.5 mi

Find every ZIP code within 10 miles of 91950 →

Questions about this ZIP code

Where is ZIP code 91950?

91950 is in National City, California, in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metropolitan area. Its published point location is 32.6691, -117.0935.

What county is 91950 in?

91950 lies in San Diego County.

What area code is 91950?

National City uses area codes 619 and 858, from NANPA's telephone records.

What time zone is 91950 in?

91950 uses America/Los_Angeles.

How many people live in 91950?

About 59,891 people live in ZIP code 91950, in 18,358 households, at 8,162.9 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 91950?

$66,426 a year, against $99,122 across California.

What ZIP codes are near 91950?

The closest are 91951 (0.7 mi), 92136 (2 mi), 91909 (2.1 mi), 91912 (2.1 mi) and 91921 (2.1 mi).

Is 91950 a PO Box ZIP code?

91950 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “91950 ZIP Code — National City, California (San Diego County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91950

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