The population of San Diego county is estimated at 3,317,200 where 1,835,381 speak English exclusively and 46,752 speak primarily in another language. In 2017 there were 43,652 births and 22,715 deaths in San Diego county. San Diego county has 463,917 housing units that are owned with a mortgage or a loan, 127,108 that are owned free and clear and 495,840 that are renter occupied.

  The upstanding residents of San Diego County filed 1,561,790 federal tax returns in 2017. This amount represents 8.8% of all California filings and 1.048% of the entire nation. San Diego had an astronomical combined total federal tax liability of $19,293,842,000 on earned income of $117,854,340,000. Other notable statistics from San Diego County were 78,560 unemployment claims which collected a total of $371,732,000 and 446,080 charitable contributions valued at $2,247,987,000. 440,450 filings from San Diego County paid a combined total of $2,603,091,000 in property taxes and 393,790 filings paid $5,000,531,000 on mortgage interest costs.

  In 2010 San Diego county had 1,720 religious congregations with an estimated 1,359,377 members.
37.4% of the San Diego population has a college level Bachelors degree or higher. 13.3% have less than a highschool diploma level education.

About 23% of San Diego County voted in the presidential election of 2016. This is a decrease from the 2012 election by 159,873 votes.
At $76,048 the median income is 105.9% of the California average. An estimated 63,465 people claimed to be unemployed last year in San Diego, the equivalant of around 4.0% of the county population. This represents a decrease in the level of unemployment from the previous year's value of 4.7%.

Top 15 Industries in San Diego County.
Total # Employed	Industry Job Type
151,783	Health care and social assistance
147,457	Accommodation and food services
138,929	Retail trade
134,334	Professional, scientific, and technical services
111,812	Food services and drinking places
108,144	Administrative and support and waste management and remediation services
105,159	Administrative and support services
99,766	Restaurants and other eating places
97,346	Manufacturing
60,288	Ambulatory health care services
59,227	Wholesale trade
56,918	Employment services
54,103	Full-service restaurants
52,194	Finance and insurance
45,323	Hospitals

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