The population of Arapahoe county is estimated at 636,949 where 424,635 speak English exclusively and 12,207 speak primarily in another language. In 2017 there were 8,108 births and 4,093 deaths in Arapahoe county. Arapahoe county has 117,978 housing units that are owned with a mortgage or a loan, 25,542 that are owned free and clear and 80,491 that are renter occupied.

  The good residents of Arapahoe County filed 311,570 federal tax returns in 2017. This amount represents 11.8% of all Colorado filings and 0.209% of the entire nation. Arapahoe had an impressive combined total federal tax liability of $4,363,733,000 on earned income of $24,821,133,000. Other notable statistics from Arapahoe County were 8,650 unemployment claims which collected a total of $46,106,000 and 89,340 charitable contributions valued at $508,379,000. 95,730 filings from Arapahoe County paid a combined total of $314,461,000 in property taxes and 88,700 filings paid $829,754,000 on mortgage interest costs.

  In 2010 Arapahoe county had 302 religious congregations with an estimated 190,837 members.
41.6% of the Arapahoe population has a college level Bachelors degree or higher. 7.7% have less than a highschool diploma level education.

About 44% of Arapahoe County voted in the presidential election of 2016. This is an increase from the 2012 election by 26,912 votes.
At $75,196 the median income is 108.8% of the Colorado average. An estimated 9,770 people claimed to be unemployed last year in Arapahoe, the equivalant of around 2.8% of the county population. This represents a decrease in the level of unemployment from the previous year's value of 3.1%.

Top 15 Industries in Arapahoe County.
Total # Employed	Industry Job Type
34,800	Administrative and support and waste management and remediation services
33,876	Administrative and support services
30,885	Retail trade
27,029	Health care and social assistance
23,414	Information
22,577	Accommodation and food services
21,566	Finance and insurance
21,416	Professional, scientific, and technical services
20,869	Food services and drinking places
19,313	Restaurants and other eating places
17,657	Employment services
15,291	Ambulatory health care services
14,933	Telecommunications
13,254	Wired telecommunications carriers
10,727	Full-service restaurants

In 2018 the average price reduction was 2.09% in Arapahoe County (averaging across 9 zip codes a sample of which are; 80111, 80016, 80014, 80122 and 80120).

In 2018 19.60% of listings in Arapahoe County (averaging across 16 zip codes a sample of which are; 80012, 80122, 80014, 80013 and 80110) dropped their price.

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