As of 2014–2018 estimates from theAmerican Community Survey, Rockingham County was the fourth- wealthiest county in New England, with a median household income of $90,429.[4]
The area that today is Rockingham County was first settled by Europeans moving north from thePlymouth Colony inMassachusetts as early as 1623. The government was linked tightly with Massachusetts until New Hampshire became a separate colony in 1679, but counties were not introduced until 1769.
Rockingham was identified in 1769 as one of five original counties for the colony. It is named forCharles Watson-Wentworth, 2nd Marquess of Rockingham, who had beenPrime Minister of the UK from 1765 to 1766. The county was organized in 1771, with its county seat atExeter. In 1823, certain townships from northwestern Rockingham (and some northern townships from Hillsborough County) became part of the formation ofMerrimack County. In 1844, its area was further reduced by the formation ofBelknap County to the northwest. In 1997, the county court facilities were moved toBrentwood, a rural town adjacent to Exeter.[5]
The county occupies the southeastern corner of the state of New Hampshire, and it contains the state's easternmost point. The county contains all of New Hampshire'sAtlantic coast, which, at approximately 18 miles (29 km), is theshortest ocean coastline of any state in the U.S.[6] According to theU.S. Census Bureau, the county has an area of 795 square miles (2,060 km2), of which 695 square miles (1,800 km2) are land and 100 square miles (260 km2) (13%) are water.[7] Its highest point is Nottingham Mountain, at 1,340 feet (410 m), inDeerfield.
As of thecensus of 2010, there were 295,223 people, 115,033 households, and 79,832 families living in the county.[13] The population density was 425.0 inhabitants per square mile (164.1/km2). There were 126,709 housing units at an average density of 182.4 per square mile (70.4/km2).[14] The racial makeup of the county was 95.5% white, 1.7% Asian, 0.7% black or African American, 0.2% American Indian, 0.6% from other races, and 1.4% from two or more races. Those of Hispanic or Latino origin made up 2.1% of the population.[13] In terms of ancestry, 26.9% wereIrish, 19.0% wereEnglish, 14.8% wereItalian, 9.7% wereGerman, 7.3% wereFrench Canadian, 5.6% werePolish, and 3.8% wereAmerican.[15]
Of the 115,033 households, 32.9% had children under the age of 18 living with them, 56.4% were married couples living together, 8.9% had a female householder with no husband present, 30.6% were non-families, and 23.5% of all households were made up of individuals. The average household size was 2.54 and the average family size was 3.03. The median age was 42.2 years.[13]
The median income for a household in the county was $75,825 and the median income for a family was $90,463. Males had a median income of $61,443 versus $42,478 for females. The per capita income for the county was $35,889. About 3.0% of families and 4.7% of the population were below thepoverty line, including 4.9% of those under age 18 and 6.0% of those age 65 or over.[16]
Population density of Rockingham County by census block (2020)[17]
As of thecensus of 2000, there were 277,359 people, 104,529 households, and 74,320 families living in the county. The population density was 399 inhabitants per square mile (154/km2). There were 113,023 housing units at an average density of 163 per square mile (63/km2). The racial makeup of the county was 96.80%White, 0.58%Black orAfrican American, 0.18%Native American, 1.11%Asian, 0.04%Pacific Islander, 0.38% fromother races, and 0.92% from two or more races. 1.19% of the population wereHispanic orLatino of any race. 18.1% were ofIrish, 14.6%English, 11.8%Italian, 10.5%French, 8.0%French Canadian, 6.0%German and 5.6%American ancestry. 94.3% spokeEnglish, 1.8%French and 1.3%Spanish as their first language.
There were 104,529 households, out of which 35.90% had children under the age of 18 living with them, 59.50% weremarried couples living together, 8.20% had a female householder with no husband present, and 28.90% were non-families. 22.00% of all households were made up of individuals, and 7.00% had someone living alone who was 65 years of age or older. The average household size was 2.63 and the average family size was 3.11.
In the county, the population was spread out, with 26.40% under the age of 18, 6.20% from 18 to 24, 32.80% from 25 to 44, 24.40% from 45 to 64, and 10.10% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 97.40 males. For every 100 females age 18 and over, there were 95.40 males.
The median income for a household in the county was $58,150, and the median income for a family was $66,345. (These figures had risen to $72,600 and $85,361 respectively, as of a 2007 estimate.) Males had a median income of $45,598 versus $30,741 for females. Theper capita income for the county was $26,656. About 3.10% of families and 4.50% of the population were below thepoverty line, including 5.00% of those under age 18 and 6.40% of those age 65 or over.
Rockingham County has historically been a Republican stronghold, but the county is now competitive. Three Democratic presidential nominees have won it since 1964, includingJoe Biden in 2020, who was the first to win a majority sinceLyndon B. Johnson.
The county is divided between the Democratic stronghold that is theSeacoast Region, and the conservative western portions of the county.
Rockingham County is one of only thirteen counties to have voted for Obama in 2008, Romney in 2012, Trump in 2016, and Biden in 2020.[a]
United States presidential election results for Rockingham County, New Hampshire[18]
The executive power of Rockingham County's government is held by three county commissioners, each representing one of the three commissioner districts within the county.[19]
In addition to the County Commission, there are five directly elected officials: they include County Attorney, Register of Deeds, County Sheriff, Register of Probate, and County Treasurer.[20]
The legislative branch of Rockingham County is made up of the members of theNew Hampshire House of Representatives from the county. In total, as of August 2018 there are 90 members from 37 different districts.
There is also a privately endowed, publicly funded school,Pinkerton Academy in Derry. Towns in Rockingham County that send their public high school students to Pinkerton, other than Derry, include Auburn, Candia, Chester, and Hampstead.[23] Prior to 1978 Londonderry sent its high schoolers to Pinkerton.[24] Previously Auburn and Candia sent high school students to theManchester School District.[25][26]