The Town FilesJefferson, New Jersey
Township in Morris County · population 20,538 (2020 Census)
- Median home
- $428,200
- Household income
- $119,836
- Jan low / Jul high
- 19° / 83°
- Snow a year
- 28 in
- Tornadoes ≤10 mi since 1950
- 5
- Median age
- 46.4
Jefferson is a township of 20,538 people in Morris County, New Jersey. The median home is worth $428,200, close to the typical New Jersey town ($435,600). It ranks better for first-time buyers than 84% of New Jersey towns, better for families than 82% of New Jersey towns, quieter than 78% of New Jersey towns.
How Jefferson 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.
Homes and cost of living
The median home in Jefferson is worth $428,200, close to the typical New Jersey town ($435,600). Homes cost about 3.6 times the median household income of $119,836, which is more affordable than 58% of New Jersey towns. Median rent is $1,480 a month. 89.1% of households own their home.
| Housing | Jefferson | Typical New Jersey town |
|---|---|---|
| Median home value | $428,200 | $435,600 |
| Median rent | $1,480 | $1,774 |
| Median household income | $119,836 | $111,891 |
| Home value ÷ income | 3.6× | 3.8× |
| Homeownership | 89.1% | 80.8% |
| Median year built | 1970 | 1969 |
| Seasonal / vacation homes | 2.3% | — |
Who lives in Jefferson
| People | Jefferson | Typical New Jersey town |
|---|---|---|
| Median age | 46.4 | 42.7 |
| Age 65 and over | 20.0% | 18.3% |
| Under 18 | 18.9% | — |
| Bachelor's degree or higher | 44.5% | 44.1% |
| Below the poverty line | 4.5% | 5.7% |
| Veterans | 6.1% | — |
| Born outside the U.S. | 9.2% | — |
| Work from home | 14.9% | 16.3% |
| Average commute | 37.3 min | 30.4 min |
| Homes with broadband | 96.2% | 94.6% |
Weather in Jefferson
July highs average 82.9°F and January lows 18.7°F. About 52.2 inches of rain and melted snow fall a year, with 28.1 inches of snow (typical New Jersey town: 24.5 in). Expect about 10 days a year at 90°F or hotter and 138 nights at or below freezing.
Tornadoes, storms and disasters
5 tornadoes have passed within 10 miles of Jefferson since 1950, compared with 9 for the typical New Jersey town. The strongest, an EF1, struck on July 21, 2026 about 6.8 miles from the town center. The most recent was on July 21, 2026.
Hail of 1 inch or larger has been reported within 10 miles 18 times; the largest was 2.50 inches on July 3, 2014.
Severe weather in Morris County since 1996
Morris County has been included in 33 federal disaster or emergency declarations since 1953, most often for fire, flood, other.
| Declared | Incident | Declaration |
|---|---|---|
| September 5, 2021 | Hurricane | DR-4614: Remnants Of Hurricane Ida |
| September 2, 2021 | Hurricane | EM-3573: Remnants Of Hurricane Ida |
| April 28, 2021 | Snowstorm | DR-4597: Severe Winter Storm And Snowstorm |
| December 11, 2020 | Hurricane | DR-4574: Tropical Storm Isaias |
| March 25, 2020 | Biological | DR-4488: Covid-19 Pandemic |
Jobs and pay in Morris County
Morris County had 298,824 jobs in 2024, paying an average of $101,208 a year. Unemployment was 3.7% in 2023; in Jefferson itself the ACS puts it at 3.8%.
Towns near Jefferson
- Oak Ridge, NJ3.4 mi · 10,996 people · home $436,100
- Rockaway, NJ4.0 mi · 25,341 people · home $466,500
- Lake Hopatcong, NJ4.2 mi · 10,232 people · home $424,200
- Sparta, NJ5.3 mi · 19,600 people · home $484,200
- Mount Hope, NJ5.7 mi · 2,930 people · home $398,000
- White Meadow Lake, NJ5.8 mi · 8,710 people · home $470,800
- Lake Mohawk, NJ6.3 mi · 9,759 people · home $441,700
- Hopatcong, NJ6.7 mi · 14,362 people · home $340,700
Jefferson questions
Is Jefferson, New Jersey a good place to retire?
On The Town Files lifestyle rankings, Jefferson scores better for retirees than 65% of New Jersey towns and quieter than 78%. 20.0% of residents are 65 or older (median age 46.4).
How much does a house cost in Jefferson?
The median owner-occupied home in Jefferson is valued at $428,200 (Census ACS 2020–2024), against a median household income of $119,836, so homes cost about 3.6 times income. Median rent is $1,480 a month.
What is the weather like in Jefferson?
July highs average 82.9°F and January lows 18.7°F (NOAA 1991–2020 normals). It gets about 52.2 inches of precipitation a year and 28.1 inches of snow.
Does Jefferson get tornadoes?
5 tornadoes have passed within 10 miles of Jefferson since 1950 (NOAA Storm Events); the strongest was an EF1 on July 21, 2026. The typical New Jersey town has had 9.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)