The Town Files

Union, New Jersey

Township in Hunterdon County · population 6,507 (2020 Census)

Map: where Union is in New JerseyUnion
Median home
$416,600
Household income
$137,568
Jan low / Jul high
21° / 86°
Snow a year
27 in
Tornadoes ≤10 mi since 1950
5
Median age
44.8

Union is a township of 6,507 people in Hunterdon County, New Jersey. The median home is worth $416,600, close to the typical New Jersey town ($435,600). It ranks better for retirees than 95% of New Jersey towns, better for young professionals than 84% of New Jersey towns, quieter than 82% of New Jersey towns.

Union in our rankings:

How Union ranks

Percentile among New Jersey towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of New Jersey towns.

Union lifestyle rankings vs other New Jersey townsRetirement95th pctFamilies62nd pctQuiet82nd pctWalkability27th pctFirst-time buyers42nd pctYoung professionals84th pctVibrancy19th pctHip & trendy62nd pctCollege town58th pctUpscale68th pctVacation homesbottomSeaside characterbottomCyclingbottomTransit48th pctDriving26th pcttypical
The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025).

Homes and cost of living

The median home in Union is worth $416,600, close to the typical New Jersey town ($435,600). Homes cost about 3.0 times the median household income of $137,568, which is more affordable than 81% of New Jersey towns. Median rent is $1,625 a month. 91.2% of households own their home.

Union vs Hunterdon County vs typical New Jersey townUnionHunterdon CountyTypical New Jersey townHome value$416,600$517,200$435,600Household income$137,568$141,715$111,891Monthly rent$1,625$1,687$1,774
Census ACS 5-year estimates, 2020–2024. "Typical town" = median of New Jersey towns with 500+ people.
HousingUnionTypical New Jersey town
Median home value$416,600$435,600
Median rent$1,625$1,774
Median household income$137,568$111,891
Home value ÷ income3.0×3.8×
Homeownership91.2%80.8%
Median year built19781969
Seasonal / vacation homes1.5%—

Who lives in Union

PeopleUnionTypical New Jersey town
Median age44.842.7
Age 65 and over17.7%18.3%
Under 1819.2%—
Bachelor's degree or higher47.3%44.1%
Below the poverty line4.0%5.7%
Veterans4.4%—
Born outside the U.S.10.1%—
Work from home22.9%16.3%
Average commute38.4 min30.4 min
Homes with broadband95.1%94.6%

Weather in Union

July highs average 85.9°F and January lows 20.6°F. About 50.9 inches of rain and melted snow fall a year, with 27.1 inches of snow (typical New Jersey town: 24.5 in). Expect about 21 days a year at 90°F or hotter and 124 nights at or below freezing.

Union monthly temperatures and precipitation20°30°40°50°60°70°80°90°32° freezing38°21°Jan41°22°Feb50°29°Mar63°39°Apr72°49°May81°58°Jun86°63°Jul84°61°Aug77°54°Sep65°42°Oct53°33°Nov43°26°DecPrecipitation (in) · snow (in) in blue3.96.23.19.44.55.74.10.94.34.84.94.24.44.53.50.44.74.5
NOAA 1991–2020 climate normals: average daily high and low by month; precipitation and snowfall in inches. Temperatures from the Flemington 5 Nnw station (6.0 mi away).

Tornadoes, storms and disasters

5 tornadoes have passed within 10 miles of Union since 1950, compared with 9 for the typical New Jersey town. 1 rated (E)F2 or stronger. The strongest, an F2, struck on February 2, 1973 about 5.5 miles from the town center. The most recent was on February 2, 1973.

Tornadoes within 10 miles of Union by decade11950s11960s31970s01980s01990s02000s02010s02020s
NOAA Storm Events Database, tornado tracks (start to end point) passing within 10 miles of the town center, 1950–2026.

Hail of 1 inch or larger has been reported within 10 miles 13 times; the largest was 1.75 inches on August 17, 2007.

Severe weather in Hunterdon County since 1996

Storm events in Hunterdon County since 1996 by typeHail37Heat58Flood50Drought43Dense Fog43Heavy Rain70Heavy Snow31Flash Flood74
NOAA Storm Events Database, Hunterdon County, 1996–2026 (all event types recorded since 1996). 15 deaths recorded.

Hunterdon County has been included in 26 federal disaster or emergency declarations since 1953, most often for fire, flood, other.

DeclaredIncidentDeclaration
September 5, 2021HurricaneDR-4614: Remnants Of Hurricane Ida
September 2, 2021HurricaneEM-3573: Remnants Of Hurricane Ida
March 25, 2020BiologicalDR-4488: Covid-19 Pandemic
March 13, 2020BiologicalEM-3451: Covid-19
March 14, 2016Severe StormDR-4264: Severe Winter Storm And Snowstorm

Jobs and pay in Hunterdon County

Hunterdon County had 46,663 jobs in 2024, paying an average of $75,099 a year. Unemployment was 3.5% in 2023; in Union itself the ACS puts it at 7.9%.

Largest industries in Hunterdon CountyHealth care & social assistan…6,375 jobs · $70,944Retail5,954 jobs · $47,672Professional & technical serv…3,728 jobs · $114,538Construction3,529 jobs · $95,302Hotels & restaurants3,494 jobs · $27,260Manufacturing2,930 jobs · $77,904
BLS Quarterly Census of Employment and Wages, 2024, private-sector jobs and average annual pay.
Unemployment rate in Hunterdon County, 2000–20230%2%4%6%8%2000200420082012201620202023Hunterdon 3.5%
Annual average unemployment rate (BLS Local Area Unemployment Statistics via USDA ERS).

Towns near Union

Union questions

Is Union, New Jersey a good place to retire?

On The Town Files lifestyle rankings, Union scores better for retirees than 95% of New Jersey towns and quieter than 82%. 17.7% of residents are 65 or older (median age 44.8).

How much does a house cost in Union?

The median owner-occupied home in Union is valued at $416,600 (Census ACS 2020–2024), against a median household income of $137,568, so homes cost about 3.0 times income. Median rent is $1,625 a month.

What is the weather like in Union?

July highs average 85.9°F and January lows 20.6°F (NOAA 1991–2020 normals). It gets about 50.9 inches of precipitation a year and 27.1 inches of snow.

Does Union get tornadoes?

5 tornadoes have passed within 10 miles of Union since 1950 (NOAA Storm Events); the strongest was a F2 on February 2, 1973. The typical New Jersey town has had 9.

How this page is made. Every number comes from public data, matched to Union's Census boundary (GEOID 3401974420). Comparisons use the median of New Jersey towns with at least 500 people. Weather comes from the nearest NOAA normals station; storm counts use NOAA tornado tracks within 10 miles of the town center. Data snapshot 2026-11-13.