Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/91917

91917

ZIP 91917 is Dulzura, California, in San Diego County; area codes 619 and 858; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
San Diego
Population
749
Coordinates
32.6420, -116.7538
☼ Live from 91917 — Dulzura, CA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 91917 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 91917
  • 🔢 Type 91917 into a pocket calculator and turn it upside down: LIGIG — not quite a word, sorry.
  • ➕ As a number, 91,917 = 3 × 3 × 7 × 1459. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011100001101
  • 🏠 Its numerical neighbours: 91916 (Descanso, CA, 20 mi away) and 91921 (Chula Vista, CA, 19 mi away).
  • 🔄 Backwards, 91917 becomes 71919, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (19179, 19197, 19971, 79119, 79911, 91791, …). The farthest-flung twin is 99711 in Fairbanks, AK, 2,579 miles away.
  • 🧭 Farther south than 86% of all ZIP codes, and farther west than 89%.
  • 🎯1,125 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91917 and you would come out at 32.64°S, 63.25°E — 932 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 51.8 square miles of land, 91917 is bigger than 60% of ZIP codes — room for about 39 Central Parks.
🌙 The sky over 91917 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population749This ZIP749
Households206This ZIP206
Housing units322This ZIP322
Median age35.3This ZIP35.3California37.9US 38.9
Median home value$564,500This ZIP$564,500California$734,700US $332,700
Median gross rent$1,742This ZIP$1,742California$2,036US $1,413
Bachelor's degree or higher31.3%This ZIP31.3%
Mean commute63.3 minThis ZIP63.3 min
Population density14.4 / sq miThis ZIP14.4 / sq mi

Business and tax activity

Business establishments6This ZIP6
Employees8This ZIP8
Annual payroll$591,000This ZIP$591,000
Tax returns filed570This ZIP570
Total adjusted gross income$28,970,000This ZIP$28,970,000

Land area

Land area51.84 sq miThis ZIP51.84 sq mi
Water area0.00 sq mi

ZIP codes near 91917

ZIPCityDistance
91935 Jamul, CA 3.8 mi
91980 Tecate, CA 8.1 mi
91987 Tecate, CA 8.6 mi
91963 Potrero, CA 9.2 mi
91978 Spring Valley, CA 11.0 mi
92179 San Diego, CA 11.2 mi
91915 Chula Vista, CA 11.5 mi
92019 El Cajon, CA 11.7 mi
91914 Chula Vista, CA 11.8 mi
91901 Alpine, CA 12.0 mi

Find every ZIP code within 10 miles of 91917 →

Questions about this ZIP code

Where is ZIP code 91917?

91917 is in Dulzura, California, in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metropolitan area. Its published point location is 32.6420, -116.7538.

What county is 91917 in?

91917 lies in San Diego County.

What area code is 91917?

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

What time zone is 91917 in?

91917 uses America/Los_Angeles.

How many people live in 91917?

About 749 people live in ZIP code 91917, in 206 households, at 14.4 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 91917?

The closest are 91935 (3.8 mi), 91980 (8.1 mi), 91987 (8.6 mi), 91963 (9.2 mi) and 91978 (11 mi).

Is 91917 a PO Box ZIP code?

91917 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “91917 ZIP Code — Dulzura, California (San Diego County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91917

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/91917.json

Underlying data is public domain or openly licensed — sources, vintages and licences.