The population of Dekalb county is estimated at 19,442. In 2017 there were 224 births and 231 deaths in Dekalb county. Dekalb county has 2,942 housing units that are owned with a mortgage or a loan, 2,369 that are owned free and clear and 2,109 that are renter occupied.

  The good residents of Dekalb County filed 7,990 federal tax returns in 2017. This amount represents 0.3% of all Tennessee filings and 0.005% of the entire nation. Dekalb had a combined total federal tax liability of $53,758,000 on earned income of $348,246,000. Other notable statistics from Dekalb County were 150 unemployment claims which collected a total of $459,000 and 690 charitable contributions valued at $4,715,000. 730 filings from Dekalb County paid a combined total of $1,188,000 in property taxes and 600 filings paid $4,259,000 on mortgage interest costs.

  In 2010 Dekalb county had 66 religious congregations with an estimated 9,755 members.
13.6% of the Dekalb population has a college level Bachelors degree or higher. 20.9% have less than a highschool diploma level education.

About 36% of DeKalb County voted in the presidential election of 2016. This represents an increase from the 2012 election by 534 votes.
At $42,080 the median income is 82.0% of the Tennessee average. An estimated 362 people claimed to be unemployed last year in Dekalb, the equivalant of around 4.7% of the county population. This represents a decrease in the level of unemployment from the previous year's value of 5.6%.

Top 15 Industries in Dekalb County.
Total # Employed	Industry Job Type
2,359	Manufacturing
1,720	Transportation equipment manufacturing
1,720	Motor vehicle parts manufacturing
533	Health care and social assistance
493	Retail trade
338	Administrative and support and waste management and remediation services
284	Accommodation and food services
236	Restaurants and other eating places
191	Other services (except public administration)
177	Repair and maintenance
154	Limited-service restaurants
146	Ambulatory health care services
105	Professional, scientific, and technical services
88	Gasoline stations
88	Gasoline stations with convenience stores

In 2018 11.57% of listings in Dekalb County.

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