YOUR KEY TO THE CITY
US Facts 
Footsteps of History 
It Happened Here 
Mottos, Slogans and Nicknames 
Noted Notables
Welcome To KEY TO THE CITY's Page For
San Diego
San Diego County, California
ZipCodes
92101-92111, 92113-92117, 92119, 92120, 92121, 92122, 92123, 92124, 92126-92140, 92142, 92145, 92147, 92149-92155, 92158-92172, 92174-92177, 92179, 92182, 92184, 92186, 92187, 92190-92199
Motto
"The Place Where California Began"
"The First Great City of the 21st Century"
America's Finest City
Plymouth of the West
Semper Vigilans (Ever Vigilant)
History & History-related items
Chamber of Commerce.
Organizations, Churches, and Sports.
Juan Rodriguez Cabrillo landed here in 1542 to claim the land for Spain. The first of the California missions, Mission San Diego de Alcala, established by Father Junipero Serra, was built here in 1769. San Diego has fourished under Spanish, Mexican and American flags.
The well-known and well-used 1,200 acre Balboa Park was built as a result of two international expositions here in San Diego in 1915 and 1936.
A history ofSan Diego Government
FOOTSTEPS OF HISTORY home page
Click here for the California Missions trail.
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See Photos of San Diego and the area.
Sister City - City of Yokahama, Japan.
See the Point Loma Lighthouse
on Point Loma overlooking San Diego Bay. The lighthouse shares the site with Cabrillo Monument, a tribute to explorer, Juan Cabrillo.
Wells Fargo History Museum
2733 San Diego Ave.
San Diego, CA 92110
Phone: 619-238-3929
Learn all about what to do in the San Diego area.
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Economy & Industry
the major portions of the economy in the San Diego area are: manufacturing, government, tourism and agriculture. The United States Navy is the largest employer in the city.
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San Diego has a Mayor/Council form of government
University of California, San Diego
San Diego Miscellany
The population of San Diego was:
1850 - 500
1860 - 731
1870 - 2,300
1880 - 2,637
1890 - 16,159
1900 - 17,700
1910 - 39,578
1920 - 74,361
1930 - 147,995
1940 - 203,341
1950 - 333,865
1960 - 573,224
1970 - 696,769
1980 - 875,538
1990 - 1,110,549
1997 - 1,183,102
2000 - 1,223,400
2002 - 1,264,600
2009 - 1,306,301
2010 - 1,307,402
Number of Housing Units:
2000 - 450,691
Population Density:
2000 - 4,003 persons per square mile
Median age:
2000 - 32.5 years
Per Capita Income:
2000 - $ 23,609
2009 - $ 31,140
Median House Value:
2000 - $ 220,000
2009 - $ 445,500
San Diego is located in the Pacific Time Zone and does participate in daylight savings time during a portion of the year.
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