There were 3,456 households of which 28.7% had children under the age of 18 living with them, 42.6% were married couples living together, 16.9% had a female householder with no husband present, and 34.5% were non-families. 27.4% of all households were made up of individuals and 8.6% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.19.
In the township, 23.5% of the population were under the age of 18, 9.6% from 18 to 24, 28.7% from 25 to 44, 27.1% from 45 to 64, and 11.1% who were 65 years of age or older. The median age was 36.3 years. For every 100 females there were 102.8 males. For every 100 females age 18 and over, there were 100.1 males.
The Census Bureau's 2006-2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $53,841 (with a margin of error of +/- $4,427) and the median family income was $68,500 (+/- $4,684). Males had a median income of $51,945 (+/- $5,141) versus $37,079 (+/- $5,759) for females. The per capita income for the borough was $24,551 (+/- $1,785). About 7.1% of families and 12.2% of the population were below the poverty line, including 21.4% of those under age 18 and 8.8% of those age 65 or over.
There were 3,903 households out of which 32.0% had children under the age of 18 living with them, 44.0% were married couples living together, 17.3% had a female householder with no husband present, and 33.8% were non-families. 27.2% of all households were made up of individuals and 10.0% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.20.
In the township the age distribution of the population shows 26.3% under the age of 18, 9.4% from 18 to 24, 32.2% from 25 to 44, 19.6% from 45 to 64, and 12.4% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 99.7 males. For every 100 females age 18 and over, there were 96.6 males.
The median income for a household in the township was $43,284, and the median income for a family was $52,000. Males had a median income of $38,186 versus $27,425 for females. The per capita income for the township was $19,672. About 6.8% of families and 9.9% of the population were below the poverty line, including 11.4% of those under age 18 and 10.4% of those age 65 or over.
Mount Holly Township operates under the Faulkner Act (Council-Manager) form of municipal government. Members of the township council are elected to four-year terms of office on a staggered basis. At a reorganization meeting after each election, the council selects a mayor and a deputy mayor from among its members.
As of 2013[update], members of the Mount Holly Township Council are Mayor Richard Dow, Deputy Mayor Richard DiFolco, Dwynne Belton, Jason Jones and Lew Brown.
On July 12, 2011, Kimberly Kersey, a member of the Township Council, resigned opening a vacancy which would be filled during the November 8, 2011, General Election. In the November 2011 general election, Richard DiFolco was selected to fill the vacancy left following the resignation of Kimberley Kerrsey and was sworn into office later that month.
On May 11, 2010, voters of the Township elected Richard Dow, III and Dywnne Belton to Township Council, replacing incumbents Jules Thiessen and Brooke Tidswell, III, who served on the Council for 16 and 12 years, respectively. Dow received 557 votes, Belton 475, Christopher Sorhaindo, Dow's running mate, 470, Theissen, 377, and Tidswell, 353 votes.
On November 8, 2011, voters of the Township elected Rich DiFolco to Township Council, who will serve the remainder of Kimberly Kersey's seat. Voters also approved the public question moving the May municipal election to November moving forward.
On November 6, 2012, voters of the Township elected Lew Brown, Rich DiFolco and Jason Jones to 4-year terms on Town Council by a large margin, their terms will begin January 1, 2013.
The first European settlement in what is now Mount Holly began in 1677, when Walter Reeves acquired land from the Lenape (Delaware) Native Americans living in the area. He constructed a dam on Rancocas Creek to channel water through a raceway to power a grist mill and saw mill. Edward Gaskill and his sons hand dug the mill race on their property between 1720 and 1723. After the mills were established, more settlers were attracted to the area and built houses and commercial buildings on High, Church, White, Mill, and Pine streets, including the Shinn Curtis Log House (1712). By 1800, over 250 dwellings had been built.
Today no mills remain on the raceway, which still flows in its original course from the Rancocas just above the dam. The former mill land has been preserved as the Mill Dam Park. It marks the importance of mills to the early settlements.
Revolutionary War era
On December 17, 1776, Colonel Samuel Griffin of the Continental Army crossed the Delaware River with 600 men — mostly untrained men and boys, and with little equipment — and marched to Mount Holly, where he set up a few "3-pounder" artillery pieces on Iron Works Hill. Hessian commanders von Block and Carl von Donop, were told that there were 3,000 American troops at Mount Holly.
By December 23, 1776, 2,000 Hessians were moved from Bordentown and positioned at The Mount in Mount Holly, where they engaged in a three day-long artillery exchange, known as the Battle of Iron Works Hill or Battle of Mount Holly,with the Americans on Iron Works Hill. The Americans slipped away that night.
The 1793 state legislature approved the relocation of the Burlington County seat from Burlington City to Mount Holly.[page needed] Several important municipal buildings were constructed, including the courthouse in 1796 and the county prison built circa 1819. The Burlington County Prison was designed by Robert Mills, a nationally known architect who designed the Washington Monument. The town has numerous 18th and 19th-century buildings, most of which are included in the Mount Holly Historic District; it is listed in the New Jersey and National Register of Historic Places. Commercial buildings were constructed primarily along High Street.
In 1849, the Burlington and Mount Holly Railroad was established, connecting communities along the Delaware River to Philadelphia, Pennsylvania, the major city of the area. The railroad supported industrialization along its route. Twenty years later, the Camden and Mount Holly Railroad constructed a station near the intersection of Washington and King streets.
A trolley station was built in 1904 for the passengers making connections to Burlington City and Moorestown, New Jersey. New municipal buildings were constructed during the 20th century, including the Town Hall on Washington Street (1930) and the U.S. Post Office (1935) located across the street (1935), both federally funded and constructed as Works Progress Administration projects under President Franklin D. Roosevelt during the Great Depression.
In the late 1950s, Mount Holly began to have economic difficulties due to industrial restructuring and the loss of working-class jobs. In the post-World War II period, numerous blue collar, family wage jobs disappeared as the community's traditional employers, the mills and dye factories, were shut down. Initially the effect of the job losses was lessened by increased employment at the nearby military bases, Fort Dix and McGuire Air Force Base, especially during the period of the Vietnam War. In 1970, the residential vacancy rate in Mount Holly was 4.3%.
By 1980, however, the vacancy rate had climbed to 8.7% as a result of the nearby military installations' downsizing after the end of the Vietnam War. During this same period, 1970–1980, shopping malls proliferated in the suburban Philadelphia area, and retail business in Mount Holly suffered. Mount Holly received Urban Enterprise Zone (UEZ) status in 1995; it has provided tax incentives and other assistance programs to local businesses, including lowering the sales tax rate to 3½, half of the prevailing rate charges statewide. This has helped to revive the local small business base.
Shinn Curtis Log House, constructed out of hand-hewn logs, the house was built in 1712; the original log house was uncovered in 1967. A larger house that had been built around it was demolished, revealing the early house beneath, which has been restored.
^Mayor and Deputy Mayor named for 2013, Township of Mount Holly. Accessed February 7, 2013. "Richard Dow was named Mayor and Richard DiFolco was named Deputy Mayor on Jan 1. 2013 during the township's annual reorganization meeting."
^Leah Arter, Burlington County. Accessed January 5, 2013.
^ abHefler, Jan; and Vargas, Claudia. "Democrats win two seats on Burlco freeholder board", The Philadelphia Inquirer, November 8, 2012. Accessed January 5, 2013. "On Tuesday, Democrats Aimee Belgard and Joanne Schwartz bested GOP incumbents Bruce Garganio and Mary Ann O'Brien in a hotly contested race that included a series of negative ads.... Belgard, an Edgewater Park committeewoman and lawyer, ran unsuccessfully for freeholder in 2010, while Schwartz, a retired nursing home administrator from Southampton, was a newcomer to politics."
^History of the Schools, Rancocas Valley Regional High School. Accessed June 21, 2012. "Rancocas Valley Regional High School District, located in historic Mount Holly, serves approximately 40 square miles of the suburban, single-family home townships of Eastampton (6,528), Hainesport (5,951), Lumberton (11,957), Mount Holly (10,230) and Westampton (8,661)."
^History, Mount Holly Township. Accessed June 21, 2012.
^Winchester, James H. "America's Oldest Volunteer Fire Group", Christian Science Monitor, December 29, 1961. Accessed June 21, 2012. Quote: "Some 210 years ago--nearly a quarter of a century before the adoption of the Declaration of Independence -- 13 men gathered in the Town Hall at Bridgetown, N.J., which is now Mount Holly, to draw up the by-laws and create the Relief Volunteer Fire Company, now the oldest in the United States."
^Who Was Who in America, Historical Volume, 1607-1896. Chicago: Marquis Who's Who. 1963.
^Staff. "PAUL R. DOGUEREAU, PIANIST AND MENTOR", The Philadelphia Inquirer, March 11, 2000. Accessed March 1, 2011. "Paul Rene Doguereau, 91, a pianist and interpreter of French music as well as a teacher and mentor to many younger pianists, died March 3 in the Virtua-Mount Holly Center, Mount Holly. A resident of Boston for more than 60 years, he and his adopted son, Harrison James Wignall, also maintained a home in Mount Holly for the last 2 1/2 years. He had stayed in Mount Holly since last March and in the nursing home for the last several months."
^Staff. "PUNK, PERSPIRATION & PAVEMENT", The Detroit News, July 26, 2007. Accessed March 1, 2011. ""Mount Holly, NJ, group the High Court hopes to receive some of the Warped Tour magic that's propelled bands such as Fall Out Boy and My Chemical Romance ..."
^Friedman, Sally. "Poet gave words a stage", The Philadelphia Inquirer, November 6, 2001. Accessed March 1, 2011. "How fitting, then, that 10 days ago that college theater in Pemberton Township was renamed the Geraldine Clinton Little Theatre in memory of the gentle woman, who lived quietly in Mount Holly but whose words touched so many souls and ignited so many spirits."
^Boatman, Gail T. "Mount Holly native makes a little 'NightMusic'", Burlington County Times, April 29, 2003. Accessed March 1, 2011. "A musicologist turned mystery writer, Mount Holly native Harrison Slater feels right at home in the world of Wolfgang Amadeus Mozart. I am an 18th-century person, he said during a recent telephone interview from Boston, where he lives part of the year."
^Staff. "A wealth of compassion: Philanthropist throwing lavish party for poor & disadvantaged", Philadelphia Daily News, December 20, 2008. Accessed February 28, 2011. "ON SUNDAY afternoons, strangers could find a hot meal, smiling faces and good conversation inside the Stafford home on Willow Street in Mount Holly, N.J. No one called it charity, and those strangers often left as friends, said Earl W. Stafford, one of 12 children raised in the home.... During a recent evening in Gene Stafford's cozy living room in Mount Holly just a block from where the family grew up..."
^Staff. "DEATH LIST OF A DAY.; Barclay White.", The New York Times, November 24, 1906. Accessed June 21, 2012. "MOUNT HOLLY, N. J., Nov. 23- Barclay White, 85 years old, of this city, a descendant of one of the oldest families in this part of New Jersey and one of the oldest settlers in Mount Holly, a prominent citizen of this country, a literary man of some prominence, and a genealogist of recognized reputation, died here to-day after a long illness. Mr. White attained prominence in National public life when in 1871 to 1878 he was United States Superintendent of Indian Affairs, having charge of seven tribes and six agencies."