San Diego County

administration
San Diego County Courthouse
US state :	California
Administrative headquarters :	San Diego
Foundation :	1850
Demographics
Residents :	3,095,313 (2010)
Population density :	284.5 inhabitants / km ²
geography
Total area :	11,721 km²
Water surface :	843 km²
map

Website : www.co.san-diego.ca.us

San Diego County is a county in the US state of California . The county seat is in San Diego .

geography

The county covers an area of 11,721 km² . The San Diego River flows through the county . The southern end of the county already forms the border with Mexico .

Border security between San Diego (left) and Tijuana , (right)

history

The county's roots go back to the time when the Misión San Diego de Alcalá was founded there in 1769. San Diego County was one of the earliest counties in California. It was created in 1850 when the state was founded. Parts of the county were later given to Riverside County in 1893 and Imperial County in 1907.

The countyname comes from San Diego Bay , a bay that Sebastián Vizcaíno named in 1602 after the Franciscan layman San Diego de Alcalá de Henares , whose name was emblazoned on the flagship.

Historical objects

There are 140 entries as Historic Places, of which 17 are National Historic Landmarks.

Demographic data

growth of population
Census	Residents	± in%
1850	708	-
1860	4324	510.7%
1870	4951	14.5%
1880	8018	61.9%
1890	34,987	336.4%
1900	35,090	0.3%
1910	61,665	75.7%
1920	112,248	82%
1930	209,659	86.8%
1940	289,348	38%
1950	556,808	92.4%
1960	1,033,011	85.5%
1970	1,357,854	31.4%
1980	1,861,846	37.1%
1990	2,498,016	34.2%
2000	2,813,833	12.6%
2010	3,095,313	10%
Before 1900 1900–1990 2000 + 2010

Mission San Luis Rey de Francia

San Diego County's age pyramid (as of 2000)

As of the 2000 census, the population of San Diego County was 2,813,833. There were 994,677 households and 663,449 families. The population density was 259 inhabitants per square kilometer. The racial the population was composed of 66.52% White, 5.74% African American, 0.86% Native American, 8.88% Asian, 0.48% Pacific Islander, and 12.82% other races Groups; 4.69% from two or more races. Hispanic or Latino of any race was 26.69% of the population.

33.90% of the 994,677 households had children and adolescents under the age of 18 living with them. 50.70% were married couples living together, 11.60% were single mothers. 33.30% were not families. 24.20% were single households and 7.90% had someone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.29 people.

For the entire county, the population was composed of 25.70% residents under 18 years of age, 11.30% between 18 and 24 years of age, 32.00% between 25 and 44 years of age, 19.80% between 45 and 64 years of age 11.20% were 65 years of age or over. The median age was 33 years. For every 100 females there were 101.20 males, and for every 100 females aged 18 and over there were 99.70 males.

The median income for a household in the 47,067 USD , and the median income for a family was 53,438 USD. Males had a median income of $ 36,952 versus $ 30,356 for females. The per capita income was $ 22,926. 12.40% percent of the population and 8.90% of families are below the poverty line. 16.50% of them were under 18 years of age and 6.80% were 65 years of age or older.