The population of Sonoma county is estimated at 503,833 where 342,615 speak English exclusively and 2,660 speak primarily in another language. In 2017 there were 4,963 births and 4,369 deaths in Sonoma county. Sonoma county has 83,732 housing units that are owned with a mortgage or a loan, 28,548 that are owned free and clear and 73,545 that are renter occupied.

  The upstanding residents of Sonoma County filed 242,950 federal tax returns in 2017. This amount represents 1.4% of all California filings and 0.163% of the entire nation. Sonoma had an impressive combined total federal tax liability of $2,913,861,000 on earned income of $18,371,779,000. Other notable statistics from Sonoma County were 12,380 unemployment claims which collected a total of $53,262,000 and 72,610 charitable contributions valued at $286,823,000. 77,320 filings from Sonoma County paid a combined total of $430,536,000 in property taxes and 66,620 filings paid $792,588,000 on mortgage interest costs.

  In 2010 Sonoma county had 315 religious congregations with an estimated 169,992 members.
33.8% of the Sonoma population has a college level Bachelors degree or higher. 12.3% have less than a highschool diploma level education.

About 33% of Sonoma County voted in the presidential election of 2016. This is a decrease from the 2012 election by 11,678 votes.
At $79,511 the median income is 110.8% of the California average. An estimated 8,835 people claimed to be unemployed last year in Sonoma, the equivalant of around 3.4% of the county population. This represents a decrease in the level of unemployment from the previous year's value of 4.0%.

Top 15 Industries in Sonoma County.
Total # Employed	Industry Job Type
23,222	Health care and social assistance
23,032	Retail trade
19,324	Manufacturing
17,606	Accommodation and food services
15,387	Administrative and support and waste management and remediation services
14,905	Administrative and support services
14,194	Food services and drinking places
13,348	Restaurants and other eating places
10,878	Ambulatory health care services
9,140	Professional, scientific, and technical services
8,262	Employment services
8,047	Wholesale trade
7,807	Full-service restaurants
6,735	Food and beverage stores
6,220	Beverage and tobacco product manufacturing

In 2018 the average price reduction was 3.55% in Sonoma County (averaging across 4 zip codes; 95476, 95404, 95409 and 95448).

In 2018 20.93% of listings in Sonoma County (averaging across 12 zip codes a sample of which are; 95492, 95448, 95476, 94952 and 95472) dropped their price.

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