Hopatcong is a borough in Sussex County, New Jersey, home to about 14,565 people across 11 square miles. Its ZIP codes are 07821 and 07843, and parts of 07874 are in Hopatcong too.
Homes sold for a median of $329 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly Hopatcong; also Byram and Green
All in Hopatcong
Mostly Stanhope; part is in Hopatcong
Each card is that ZIP code’s whole market, including any part outside Hopatcong. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Hopatcong’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)34 miles away |
|---|---|
| Nearest city of 250,000+ | Newark, NJ32 miles away |
| Nearest city of 1 million+ | New York, NY45 miles away |
Straight-line distances from the center of Hopatcong; 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.
Hopatcong had 14,362 residents in the 2020 census, down 10% since 2000.
It’s the 184th largest of 565 towns in New Jersey by population.
Sussex County grew from 24,134 residents in 1900 to 144,221 in 2020.
Sussex County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 19°F. About 48.8 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Andover Aeroflex Ap, NJ weather station (4 miles away).
32,211 jobs at 3,184 businesses in Sussex County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
55 doctors and other health care providers list an office in Hopatcong’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 5 |
|---|---|
| Specialist doctors | 1 |
| Dentists | 6 |
| Nurse practitioners and physician assistants | 2 |
| Mental health providers | 28 |
| Physical and occupational therapists | 12 |
| Chiropractors | 1 |
| Pharmacies | 3 |
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 (3 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Theaters and performance venues
Counts are within about 2.5 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 1898.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Hopatcong Borough School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Durban Avenue Elementary SchoolHopatcong | Pre-K–1 | 286 | Public | 2.4 mi |
| Tulsa Trail Elementary SchoolHopatcong | 2–3 | 215 | Public | 2.9 mi |
| Hopatcong Middle SchoolHopatcong | 4–7 | 435 | Public | 2.8 mi |
| Hopatcong High SchoolHopatcong | 8–12 | 506 | Public | 2.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Tranquility Adventist SchoolAndover | Pre-K–8 | 30 | Seventh-day Adventist | 4.0 mi |
| Elite Prepartory AcademyHopatcong | 8–12 | 41 | Nonsectarian | 3.0 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Byram, Stanhope, Green, Andover, Allamuchy, Andover Borough and Frelinghuysen.
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.