The population of Marshall county is estimated at 31,973. In 2017 there were 377 births and 324 deaths in Marshall county. Marshall county has 5,498 housing units that are owned with a mortgage or a loan, 3,063 that are owned free and clear and 3,289 that are renter occupied.

  The residents of Marshall County filed 14,820 federal tax returns in 2017. This amount represents 0.5% of all Tennessee filings and 0.010% of the entire nation. Marshall had a combined total federal tax liability of $99,723,000 on earned income of $700,896,000. Other notable statistics from Marshall County were 390 unemployment claims which collected a total of $952,000 and 1,300 charitable contributions valued at $7,801,000. 1,510 filings from Marshall County paid a combined total of $2,883,000 in property taxes and 1,320 filings paid $8,829,000 on mortgage interest costs.

  In 2010 Marshall county had 86 religious congregations with an estimated 17,395 members.
13.4% of the Marshall population has a college level Bachelors degree or higher. 14.7% have less than a highschool diploma level education.

About 36% of Marshall County voted in the presidential election of 2016. This represents an increase from the 2012 election by 673 votes.
At $52,415 the median income is 102.1% of the Tennessee average. An estimated 517 people claimed to be unemployed last year in Marshall, the equivalant of around 3.3% of the county population. This represents a decrease in the level of unemployment from the previous year's value of 4.6%.

Top 15 Industries in Marshall County.
Total # Employed	Industry Job Type
2,656	Manufacturing
1,033	Retail trade
724	Health care and social assistance
529	Temporary help services
512	Accommodation and food services
485	Food services and drinking places
473	Restaurants and other eating places
340	Limited-service restaurants
176	Finance and insurance
165	Gasoline stations
161	Ambulatory health care services
151	Fabricated metal product manufacturing
142	Grocery stores
141	Credit intermediation and related activities
133	Supermarkets and other grocery (except convenience) stores

In 2018 the average price reduction was 2.81% in Marshall County.

In 2018 20.51% of listings in Marshall County.

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