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Geography & Statistics
Los Angeles County is diverse. It has mountains, deserts, beaches and islands. It is urban and suburban. One city has 4 million people, another 95. Residents are very rich and very poor. They come from throughout the world and speak more than 100 – some say more than 200 – languages. It has more residents than any other county in the nation and is one of the largest in size.


Highlights
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Solar Mapping Program Debuts
A new solar mapping program allows homeowners and businesses in Los Angeles County to go online to determine if their properties are good candidates for solar power. To use the free service, go to http://solarmap.lacounty.gov.
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Rain Statistics
The Public Works Department tracks rainfall in the County through 62 rain gauges, updating the information every 10 minutes.

Unincorporated Area Demographics
In households in the unincorporated areas of the County, 49.5 percent have children under 18 years of age and 23 percent have individuals older than 65, according to a County analysis.
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Geography & Statistics Links
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   Cities and Communities
The 88 cities, approximate 140 unincorporated areas, and communities within the City of Los Angeles are listed with the supervisorial district in which they are located.

   Maps
This site provides maps of the County, the Downtown Civic Center, the Hall of Administration and the Mall area of the Hall of Administration.

   Statistics
Geography, population, property valuation, demographics, rainfall figures, and economic information are among the statistics provided.

   Supervisorial District Maps
Maps outline the boundaries of the five supervisorial districts.

   Unincorporated Areas
Specific program information is provided for several unincorporated areas of the County.

Zip Codes    Zip Codes
A zip code map and lists show the County's zip codes and corresponding supervisorial districts.

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Related Departments, Commissions, and Agencies

500 W. Temple St., Los Angeles, CA 90012
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1100 N. Eastern Ave., Los Angeles, CA 90063
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900 S. Fremont Ave., Alhambra, CA 91803
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320 W. Temple St., Room 1360, Los Angeles, CA 90012
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Did You Know?
  • There are 75 miles of mainland beach in L.A. County – 9 percent of the state's coastline.
  • The average rainfall in the County is 15.5 inches.
  • The County's 4,084 square miles makes it one of the nation's largest counties.
  • The County is the most populous county in the nation, with 10.3 million people.
  • The County has two islands: Santa Catalina and San Clemente.
  • If the County were a state, it would be the eighth most populous.
  • Approximately 30 percent of California's residents live in the County.
  • Altitudes in the County vary from 9 ft. below sea level in Wilmington to 10,080 ft. above sea level at Mt. San Antonio.

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