Jefferson is a township in Morris County, New Jersey, home to about 20,587 people across 39 square miles. Its ZIP codes are 07438 and 07849, and parts of 07435 and 07885 are in Jefferson too.
Homes sold for a median of $305 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly Jefferson; also West Milford
All in Jefferson
Mostly Rockaway Township; part is in Jefferson
Mostly Wharton; part is in Jefferson
Each card is that ZIP code’s whole market, including any part outside Jefferson. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Jefferson’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Newark Liberty International Airport (EWR)29 miles away |
|---|---|
| Nearest city of 250,000+ | Newark, NJ27 miles away |
| Nearest city of 1 million+ | New York, NY39 miles away |
Straight-line distances from the center of Jefferson; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Jefferson had 20,538 residents in the 2020 census, up 4% since 2000.
It’s the 134th largest of 565 towns in New Jersey by population.
Morris County grew from 65,156 residents in 1900 to 509,285 in 2020.
Morris County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 19°F. About 52.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Charlotteburg Rsvr, NJ weather station (7 miles away).
301,249 jobs at 16,518 businesses in Morris County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
94 doctors and other health care providers list an office in Jefferson’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 9 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 8 |
| Nurse practitioners and physician assistants | 23 |
| Mental health providers | 13 |
| Physical and occupational therapists | 24 |
| Optometrists | 7 |
| Chiropractors | 8 |
| Pharmacies | 10 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (5 nearby)
Grocery stores (1 nearby)
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 4 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1804.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Jefferson Township Public School District, West Milford Township Public School District, Morris County Vocational School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Cozy Lake Elementary SchoolOak Ridge | Pre-K–K | 236 | Public | 3.3 mi |
| Ellen T. Briggs Elementary SchoolLake Hopatcong | Pre-K–K | 226 | Public | 4.7 mi |
| Paradise Knoll Elementary SchoolOak Ridge | K–5 | 196 | Public | 6.0 mi |
| White Rock Elementary SchoolOak Ridge | 1–5 | 481 | Public | 3.0 mi |
| Jefferson Township Middle SchoolOak Ridge | 6–8 | 550 | Public | 1.3 mi |
| Academy for Environmental ScienceOak Ridge | 9–12 | 36 | Career and Technical | 1.4 mi |
| Jefferson Township High SchoolOak Ridge | 9–12 | 761 | Public | 1.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Wharton, Rockaway Township, West Milford and Roxbury.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.