Union Township, Hunterdon County, New Jersey

Township in Hunterdon County, New Jersey

Population, 2000 to 2020+5.6%

Population of Union Township at each census
Census	Population
2000	6,160
2010	5,908
2020	6,507

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, county subdivision level, state 34, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county subdivision level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county subdivision level, state 34, retrieved November 14, 2026.

Union Township compared with its county and state

Union Township compared with its county and state, American Community Survey 2019-2023
Measure	Union Township	Hunterdon County	New Jersey
Population	6,402	129,448	9,267,014
Median household income	$124,922	$139,453	$101,050
Median age	45.6	46.2	40.1
Median home value	$427,900	$498,800	$427,600
Bachelor’s degree or higher	46.0%	56.5%	42.9%
Foreign-born residents	9.8%	11.2%	23.5%
Owner-occupied homes	89.5%	84.8%	63.7%
Mean commute to work	35.6 minutes	33.6 minutes	30.9 minutes

Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.

Household income in Union Township

Under $50k12.7%

$50k to $100k24.9%

$100k to $150k23.4%

$150k to $200k13.4%

$200k and over25.6%

Median household income $124,922 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.

Housing tenure in Union Township

89.5%owner occupied

Owner occupied: 1,936 units
Renter occupied: 228 units
Vacancy rate: 5.9%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 34, retrieved November 14, 2026.

Public schools in Union Township3

Public schools in Union Township, NCES directory 2023–2024
School	Type	Grades	District
Union Township Elementary School	Public	Pre-K–3	Union Township School District
Union Township Middle School	Public	4–8	Union Township School District
EDNA MAHAN CORRECTIONAL FACILITY FOR WOMEN	Alternative	11	OFFICE OF EDUCATIONAL SERVICES DEPARTMENT OF CORRECTIONS

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.