The population of Hillsborough county is estimated at 407,718 where 330,019 speak English exclusively and 3,085 speak primarily in another language. In 2017 there were 4,261 births and 3,262 deaths in Hillsborough county. Hillsborough county has 80,188 housing units that are owned with a mortgage or a loan, 23,763 that are owned free and clear and 51,515 that are renter occupied.

  The gracious residents of Hillsborough County filed 214,430 federal tax returns in 2017. This amount represents 30.7% of all New Hampshire filings and 0.144% of the entire nation. Hillsborough had an impressive combined total federal tax liability of $2,642,624,000 on earned income of $16,041,485,000. Other notable statistics from Hillsborough County were 7,080 unemployment claims which collected a total of $38,729,000 and 54,860 charitable contributions valued at $175,869,000. 66,330 filings from Hillsborough County paid a combined total of $480,862,000 in property taxes and 57,620 filings paid $460,803,000 on mortgage interest costs.

  In 2010 Hillsborough county had 246 religious congregations with an estimated 173,730 members.
36.5% of the Hillsborough population has a college level Bachelors degree or higher. 8.2% have less than a highschool diploma level education.

Approximately 52% of Hillsborough County voted in the presidential election of 2016. This is an increase from the 2012 election by 7,444 votes.
At $78,171 the median income is 106.2% of the New Hampshire average. An estimated 6,555 people claimed to be unemployed last year in Hillsborough, 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 3.0%.

Top 15 Industries in Hillsborough County.
Total # Employed	Industry Job Type
28,561	Health care and social assistance
26,984	Retail trade
26,644	Administrative and support and waste management and remediation services
26,481	Administrative and support services
25,287	Manufacturing
20,861	Employment services
14,781	Accommodation and food services
13,725	Food services and drinking places
12,766	Restaurants and other eating places
10,986	Professional, scientific, and technical services
10,326	Computer and electronic product manufacturing
10,111	Ambulatory health care services
7,549	General medical and surgical hospitals
7,549	General medical and surgical hospitals, except government
7,274	Full-service restaurants

In 2018 the average price reduction was 2.76% in Hillsborough County (averaging across 11 zip codes a sample of which are; 3051, 3102, 3076, 3055 and 3045).

In 2018 15.44% of listings in Hillsborough County (averaging across 20 zip codes a sample of which are; 3054, 3109, 3244, 3063 and 3070) dropped their price.

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