2010 census

The 2010 United States census counted 2,667 people, 1,017 households, and 760 families in the township. The population density was 112.5 inhabitants per square mile (43.4/km²). There were 1,109 housing units at an average density of 46.8 per square mile (18.1/km²). The racial makeup was 98.28% (2,621) White, 0.67% (18) Black or African American, 0.26% (7) Native American, 0.19% (5) Asian, 0.00% (0) Pacific Islander, 0.07% (2) from other races, and 0.52% (14) from two or more races. Hispanic or Latino of any race were 1.31% (35) of the population.^[15]

Of the 1,017 households, 28.0% had children under the age of 18; 63.1% were married couples living together; 8.4% had a female householder with no husband present and 25.3% were non-families. Of all households, 20.6% were made up of individuals and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.02.^[15]

21.0% of the population were under the age of 18, 6.9% from 18 to 24, 20.4% from 25 to 44, 35.7% from 45 to 64, and 16.0% who were 65 years of age or older. The median age was 46.1 years. For every 100 females, the population had 97.0 males. For every 100 females ages 18 and older there were 97.4 males.^[15] The Census Bureau's 2006–2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $82,339 (with a margin of error of +/− $7,992) and the median family income was $86,964 (+/− $11,141). Males had a median income of $60,489 (+/− $4,798) versus $53,100 (+/− $11,618) for females. The per capita income for the borough was $34,985 (+/− $4,062). About 0.7% of families and 1.2% of the population were below the poverty line, including 0.5% of those under age 18 and 1.7% of those age 65 or over.^[40]

2000 census

As of the 2000 United States census^[12] there were 2,729 people, 1,010 households, and 786 families residing in the township. The population density was 114.6 inhabitants per square mile (44.2/km²). There were 1,076 housing units at an average density of 45.2 per square mile (17.5/km²). The racial makeup of the township was 97.91% White, 0.70% African American, 0.07% Native American, 0.40% Asian, 0.18% from other races, and 0.73% from two or more races. Hispanic or Latino of any race were 1.28% of the population.^[38][39]

There were 1,010 households, out of which 34.2% had children under the age of 18 living with them, 66.3% were married couples living together, 7.7% had a female householder with no husband present, and 22.1% were non-families. 17.8% of all households were made up of individuals, and 8.5% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.05.^[38][39]

In the township, the population was spread out, with 24.1% under the age of 18, 5.2% from 18 to 24, 30.6% from 25 to 44, 26.2% from 45 to 64, and 13.9% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 97.8 males. For every 100 females age 18 and over, there were 97.2 males.^[38][39]

The median income for a household in the township was $60,977, and the median income for a family was $64,196. Males had a median income of $49,375 versus $28,750 for females. The per capita income for the township was $25,776. About 2.8% of families and 4.5% of the population were below the poverty line, including 3.9% of those under age 18 and 5.3% of those age 65 or over.^[38][39]

Local government

Harmony Township is governed under the Township form of New Jersey municipal government, one of 141 municipalities (of the 564) statewide that use this form, the second-most commonly used form of government in the state.^[41] The governing body is composed of a three-member Township Committee, whose members are elected directly by the voters at-large in partisan elections to serve three-year terms of office on a staggered basis, with one seat coming up for election each year as part of the November general election in a three-year cycle.^[3][42] At an annual reorganization meeting, the Township Committee selects one of its members to serve as Mayor.

As of 2022^[update], members of the Harmony Township Committee are Mayor Brian R. Tipton (R, term on committee ends December 31, 2024; term as mayor ends 2022), Deputy Mayor Diane Yamrock (R, term on committee ends 2023; term as deputy mayor ends 2022) and Richard T. Cornely (R, 2022).^{[4][43][44][45][46]}

Federal, state, and county representation

Harmony Township is located in the 7th Congressional District^[47] and is part of New Jersey's 23rd state legislative district.^[48][49][50] Prior to the 2010 Census, Harmony Township had been part of the 5th Congressional District, a change made by the New Jersey Redistricting Commission that took effect in January 2013, based on the results of the November 2012 general elections.^[51]

For the 118th United States Congress, New Jersey's 7th congressional district is represented by Thomas Kean Jr. (R, Westfield).^[52] New Jersey is represented in the United States Senate by Democrats Cory Booker (Newark, term ends 2027)^[53] and Bob Menendez (Englewood Cliffs, term ends 2025).^[54][55]

For the 2024-2025 session, the 23rd legislative district of the New Jersey Legislature is represented in the State Senate by Doug Steinhardt (R, Lopatcong Township) and in the General Assembly by John DiMaio (R, Hackettstown) and Erik Peterson (R, Franklin Township).^[56]

Warren County is governed by a three-member Board of County Commissioners, who are chosen at-large on a staggered basis in partisan elections with one seat coming up for election each year as part of the November general election. At an annual reorganization meeting held in the beginning of January, the board selects one of its members to serve as Commissioner Director and other as Deputy Director.^[57] As of 2024^[update], Warren County's Commissioners are:

Deputy Director Jason J. Sarnoski (R, Lopatcong Township; 2025),^[58] Lori Ciesla (R, Lopatcong Township; 2026),^[59] and Director James R. Kern III (R, Pohatcong Township; 2025).^[60][61]

Constitutional officers of Warren County are: Clerk Holly Mackey (R, Alpha; 2027),^[62][63] Sheriff James McDonald Sr. (R, Phillipsburg; 2025)^[64][65] and Surrogate Michael J. Doherty (R, Washington; 2025).^[66][67][68]

Politics

As of March 2011, there were a total of 1,802 registered voters in Harmony Township, of which 333 (18.5% vs. 21.5% countywide) were registered as Democrats, 786 (43.6% vs. 35.3%) were registered as Republicans and 683 (37.9% vs. 43.1%) were registered as Unaffiliated. There were no voters registered to other parties.^[69] Among the township's 2010 Census population, 67.6% (vs. 62.3% in Warren County) were registered to vote, including 85.5% of those ages 18 and over (vs. 81.5% countywide).^[69][70]

In the 2012 presidential election, Republican Mitt Romney received 702 votes (58.9% vs. 56.0% countywide), ahead of Democrat Barack Obama with 442 votes (37.1% vs. 40.8%) and other candidates with 24 votes (2.0% vs. 1.7%), among the 1,192 ballots cast by the township's 1,826 registered voters, for a turnout of 65.3% (vs. 66.7% in Warren County).^[71][72] In the 2008 presidential election, Republican John McCain received 805 votes (59.9% vs. 55.2% countywide), ahead of Democrat Barack Obama with 486 votes (36.1% vs. 41.4%) and other candidates with 33 votes (2.5% vs. 1.6%), among the 1,345 ballots cast by the township's 1,824 registered voters, for a turnout of 73.7% (vs. 73.4% in Warren County).^[73] In the 2004 presidential election, Republican George W. Bush received 798 votes (61.6% vs. 61.0% countywide), ahead of Democrat John Kerry with 479 votes (37.0% vs. 37.2%) and other candidates with 14 votes (1.1% vs. 1.3%), among the 1,296 ballots cast by the township's 1,713 registered voters, for a turnout of 75.7% (vs. 76.3% in the whole county).^[74]

In the 2013 gubernatorial election, Republican Chris Christie received 75.9% of the vote (536 cast), ahead of Democrat Barbara Buono with 21.4% (151 votes), and other candidates with 2.7% (19 votes), among the 717 ballots cast by the township's 1,844 registered voters (11 ballots were spoiled), for a turnout of 38.9%.^[75][76] In the 2009 gubernatorial election, Republican Chris Christie received 543 votes (63.7% vs. 61.3% countywide), ahead of Democrat Jon Corzine with 197 votes (23.1% vs. 25.7%), Independent Chris Daggett with 84 votes (9.9% vs. 9.8%) and other candidates with 11 votes (1.3% vs. 1.5%), among the 852 ballots cast by the township's 1,800 registered voters, yielding a 47.3% turnout (vs. 49.6% in the county).^[77]