What County Is San Diego, California In?

San Diego is in San Diego County, California. It is the county seat of San Diego County. About 1,389,526 people live there (2020–2024 estimate). It uses Pacific Time and covers 326 sq mi (844 km²) of land. The nearest larger city or town is Los Angeles, 111 mi northwest.

Los AngelesSan JoseSan Francisco
San Diego in California
BonitaChula VistaCoronadoDel DiosDel MarEl CajonImperial BeachLa MesaLa PresaLemon GrovePowayRamonaSanteeSolana Beach
San Diego and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
1,389,526 ± 106
Land area
326 sq mi (844 km²)
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Elevation
303 ft 92 m, ground height at the central point
Median household income
$108,077 ± $1,463
Median home value
$906,700 ± $6,879
Median rent, with utilities
$2,313 ± $18
Homes lived in by their owners
47.3% ± 0.5 points
Metro area
San Diego-Chula Vista-Carlsbad, CAA principal city of the area
Water area
16.2 sq mi (42.1 km²)
State
California
Census place code
0666000
Coordinates (central point)
32.830391, -117.120923

These coordinates mark a central point for the area, not a street address. Population, income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

County boundaries in San Diego

For a point close to the city or county boundary, check the address with the office responsible for your form. Check a point on the county map.

Coordinates of San Diego

32.830391, -117.120923 is a central point for San Diego, not a street address. Convert these coordinates or share a map link.

Elevation in San Diego

303 ft (92 m), the USGS ground height at San Diego’s central point (3DEP terrain, 1 m grid, NAVD 88). Ground height varies across town. Check elevation at another spot.

Sunrise and sunset in San Diego

Longest day
14 hours 19 minutes around June 21
Shortest day
10 hours around December 21
Earliest sunrise
5:39 AM around June 12
Latest sunrise
7:10 AM the day before clocks go back in November
Earliest sunset
4:41 PM around December 4
Latest sunset
8:00 PM around June 29

Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.

Sunrise and sunset on the 15th of each month
DaySunriseSunsetDaylight
Jan 156:51 AM5:04 PM10 h 13 min
Feb 156:31 AM5:33 PM11 h 2 min
Mar 156:58 AM6:56 PM11 h 58 min
Apr 156:18 AM7:18 PM13 h
May 155:49 AM7:40 PM13 h 51 min
Jun 155:39 AM7:58 PM14 h 19 min
Jul 155:51 AM7:57 PM14 h 6 min
Aug 156:11 AM7:33 PM13 h 22 min
Sep 156:32 AM6:54 PM12 h 22 min
Oct 156:52 AM6:15 PM11 h 23 min
Nov 156:18 AM4:47 PM10 h 29 min
Dec 156:43 AM4:43 PM10 h

Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.

Time zones in San Diego

San Diego uses Pacific Time (America/Los_Angeles).

Time zoneLocal time and UTC offsetNext clock change
Pacific TimeAmerica/Los_AngelesUTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 9191185,542 people
  2. 9215480,445 people
  3. 9212676,059 people
  4. 9210571,411 people
  5. 9211566,264 people
  6. 9211465,745 people
  7. 9213060,768 people
  8. 9195059,891 people
  9. 9207159,590 people
  10. 9202754,113 people
  11. 9212952,965 people
  12. 9211752,275 people
All 59
  1. 9210151,805 people
  2. 9212750,555 people
  3. 9202549,989 people
  4. 9212848,992 people
  5. 9206448,683 people
  6. 9211348,215 people
  7. 9210447,410 people
  8. 9212245,411 people
  9. 9211145,249 people
  10. 9210944,820 people
  11. 9194241,424 people
  12. 9203740,717 people
  13. 9210238,901 people
  14. 9206536,752 people
  15. 9213135,503 people
  16. 9191535,322 people
  17. 9210334,836 people
  18. 9213934,703 people
  19. 9212333,041 people
  20. 9212031,915 people
  21. 9211631,843 people
  22. 9211030,902 people
  23. 9212430,474 people
  24. 9210728,827 people
  25. 9194527,745 people
  26. 9217327,585 people
  27. 9210826,790 people
  28. 9193225,741 people
  29. 9211924,456 people
  30. 9210621,651 people
  31. 9202920,726 people
  32. 9211818,929 people
  33. 9190217,698 people
  34. 9201413,105 people
  35. 9207511,944 people
  36. 920677,938 people
  37. 920937,167 people
  38. 921364,573 people
  39. 921213,974 people
  40. 921452,349 people
  41. 921402,038 people
  42. 92092528 people
  43. 92134290 people
  44. 92147148 people
  45. 9216129 people
  46. 921320 people
  47. 921820 people

59 ZIP Code areas overlap San Diego. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Bordering areas, nearest first

Distances are straight lines between map points.

  1. La Mesa, California (city)7.1 mi southeast
  2. Santee, California (city)8.0 mi east
  3. Lemon Grove, California (city)8.4 mi southeast
  4. El Cajon, California (city)9.5 mi east
  5. La Presa, California (CDP)11 mi southeast
  6. National City, California (city)11 mi south
  7. Fairbanks Ranch, California (CDP)12 mi north
  8. Coronado, California (city)12 mi south
  9. Del Mar, California (city)12 mi northwest
  10. Poway, California (city)12 mi northeast
  11. Bonita, California (CDP)13 mi southeast
  12. Solana Beach, California (city)14 mi northwest
All 17
  1. Chula Vista, California (city)15 mi southeast
  2. Del Dios, California (CDP)17 mi north
  3. Imperial Beach, California (city)18 mi south
  4. Ramona, California (CDP)21 mi northeast
  5. Escondido, California (city)21 mi north

Before using this answer on a form

A city boundary, a CDP and a mailing city can mean different things.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this place on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.