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zipcodes.pro — ZIP/91977

91977

ZIP 91977 is in Spring Valley, California, in San Diego County; area codes 619 and 858; Pacific time. Spring Valley has 4 ZIP codes; the others are 91976, 91978 and 91979.

Type
Standard
Time zone
America/Los_Angeles
County
San Diego
Population
61,064
Coordinates
32.7262, -116.9943
☼ Live from 91977 — Spring Valley, CA

Weather right now

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Local time: —

Where 91977 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 91977
  • 🔢 Type 91977 into a pocket calculator and turn it upside down: LLGIG — not quite a word, sorry.
  • ➕ As a number, 91,977 = 3 × 23 × 31 × 43. Its digits add up to 33, a total 456 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011101001001
  • 🏠 Its numerical neighbours: 91976 (Spring Valley, CA, 1 mi away) and 91978 (Spring Valley, CA, 4 mi away).
  • 🔄 Backwards, 91977 becomes 77919, which is not a ZIP code at all.
  • 👥 7 other ZIP codes are made of exactly the same digits (17979, 19977, 77991, 79719, 79917, 97917, …). The farthest-flung twin is 99771 in Shaktoolik, AK, 2,871 miles away.
  • 🧭 Farther south than 85% of all ZIP codes, and farther west than 89%.
  • 🎯1,134 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91977 and you would come out at 32.73°S, 63.01°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 9.9 square miles of land, 91977 is bigger than 27% of ZIP codes — room for about 7.5 Central Parks.
🌙 The sky over 91977 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population61,064This ZIP61,064
Households19,118This ZIP19,118
Housing units19,669This ZIP19,669
Median age35.8This ZIP35.8California37.9US 38.9
Median household income$99,657This ZIP$99,657California$99,122US $80,734
Median home value$665,600This ZIP$665,600California$734,700US $332,700
Median gross rent$1,925This ZIP$1,925California$2,036US $1,413
Bachelor's degree or higher27.7%This ZIP27.7%
Mean commute26.5 minThis ZIP26.5 min
Population density6,156.9 / sq miThis ZIP6,156.9 / sq mi

Business and tax activity

Business establishments829This ZIP829
Employees7,111This ZIP7,111
Annual payroll$313,345,000This ZIP$313,345,000
Tax returns filed29,030This ZIP29,030
Total adjusted gross income$1,859,867,000This ZIP$1,859,867,000

Land area

Land area9.92 sq miThis ZIP9.92 sq mi
Water area0.52 sq miThis ZIP0.52 sq mi

Other place names in 91977

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

ZIP codes near 91977

ZIPCityDistance
91976 Spring Valley, CA 1.3 mi
91979 Spring Valley, CA 1.3 mi
91941 La Mesa, CA 2.3 mi
91945 Lemon Grove, CA 2.4 mi
91946 Lemon Grove, CA 2.4 mi
91943 La Mesa, CA 3.3 mi
91944 La Mesa, CA 3.3 mi
91902 Bonita, CA 3.7 mi
92114 San Diego, CA 3.8 mi
91942 La Mesa, CA 3.9 mi

Find every ZIP code within 10 miles of 91977 →

Questions about this ZIP code

Where is ZIP code 91977?

91977 is in Spring Valley, California, in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metropolitan area. Its published point location is 32.7262, -116.9943.

What county is 91977 in?

91977 lies in San Diego County.

What area code is 91977?

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

What time zone is 91977 in?

91977 uses America/Los_Angeles.

How many people live in 91977?

About 61,064 people live in ZIP code 91977, in 19,118 households, at 6,156.9 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 91977?

$99,657 a year, against $99,122 across California.

What ZIP codes are near 91977?

The closest are 91976 (1.3 mi), 91979 (1.3 mi), 91941 (2.3 mi), 91945 (2.4 mi) and 91946 (2.4 mi).

Is 91977 a PO Box ZIP code?

91977 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “91977 ZIP Code — Spring Valley, California (San Diego County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91977

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