Andover is a township in Sussex County, New Jersey, home to about 5,801 people across 20 square miles. It has no ZIP code of its own: it’s part of 07821, 07848 and 07860.
Homes sold for a median of $288 per square foot across 3 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly Hopatcong; part is in Andover
Mostly Lafayette; part is in Andover
Mostly Newton; part is in Andover
Each card is that ZIP code’s whole market, including any part outside Andover. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Andover’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)40 miles away |
|---|---|
| Nearest city of 250,000+ | Newark, NJ38 miles away |
| Nearest city of 1 million+ | New York, NY51 miles away |
Straight-line distances from the center of Andover; 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.
Andover had 5,996 residents in the 2020 census, down 1% since 2000.
It’s the 356th 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 (3 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).
461 doctors and other health care providers list an office in Andover’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 43 |
|---|---|
| Specialist doctors | 81 |
| Dentists | 27 |
| Nurse practitioners and physician assistants | 71 |
| Mental health providers | 143 |
| Physical and occupational therapists | 79 |
| Optometrists | 3 |
| Chiropractors | 14 |
| Pharmacies | 12 |
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 (9 nearby)
Grocery stores (2 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues (2 nearby)
Counts are within about 3 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 1864.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Andover Regional School District, Fredon Township School District, Frelinghuysen Township School District and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Florence M. BurdNewton | Pre-K–4 | 288 | Public | 3.5 mi |
| Fredon Township SchoolNewton | Pre-K–6 | 203 | Public | 2.5 mi |
| Frelinghuysen Township Elementary SchoolNewton | Pre-K–6 | 121 | Public | 6.5 mi |
| Lafayette Township SchoolLafayette | Pre-K–8 | 232 | Public | 8.4 mi |
| Marian E. McKeown Elementary SchoolNewton | Pre-K–6 | 322 | Public | 4.5 mi |
| Merriam Avenue SchoolNewton | Pre-K–4 | 483 | Public | 0.9 mi |
| Halsted Middle SchoolNewton | 5–8 | 280 | Public | 1.2 mi |
| Long Pond SchoolNewton | 5–8 | 189 | Public | 3.5 mi |
| Kittatinny Regional High SchoolNewton | 7–12 | 733 | Public | 4.3 mi |
| Newton High SchoolNewton | 9–12 | 680 | Public | 0.6 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Northwest Christian SchoolNewton | Pre-K–8 | 149 | Christian (no specific denomination) | 3.5 mi |
| Tranquility Adventist SchoolAndover | Pre-K–8 | 30 | Seventh-day Adventist | 6.7 mi |
| Lakeland Andover SchoolNewton | 7–12 | 26 | Nonsectarian | 1.1 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 Newton, Hopatcong, Byram, Hampton Township, Stillwater, Fredon, Lafayette, Green, Allamuchy, Frankford, 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.