# List of schools and school districts in Sussex County, New Jersey

The following is a list of schools and school districts in Sussex County, New Jersey and includes both public and private schools that are currently in operation, and an enumeration of defunct institutions.
Before 1942, Sussex County had over 100 school districts. Most of these districts were in rural townships that each had several districts—and each operated a one-room schoolhouse that served their small neighborhoods. During the forty-year tenure (1903–1942) of County School Superintendent Ralph Decker (1873-?), these individual school districts were dissolved and consolidated into municipal or regional districts.

## Universities and colleges

* Sussex County Community College

## Secondary schools
### Public high schools

| Institution | Founded | Grades | Students (2009–2010) | Address/location | Municipalities served |
| High Point Regional High School | 1966 | 9–12 | 1,208 | 299 Pigeon Hill Road Sussex, NJ 07461 (Wantage Township) (Montague Township) | Branchville borough Frankford Township Lafayette Township Montague Township Sussex Borough Wantage Township |
| Hopatcong High School | 1975 | 9–12 | 730 | 2 Windsor Road Hopatcong, NJ 07843 Hopatcong borough | Hopatcong borough |
| Kittatinny Regional High School | 1975 | 7–12 | 1,174 | 77 Halsey Road Newton, NJ 07860 (Hampton Township) | Fredon Township Hampton Township Sandyston Township Stillwater Township Walpack Township |
| Lenape Valley Regional High School | 1974 | 9–12 | 850 | 28 Sparta Road Stanhope, NJ 07874 (Stanhope Borough) | Byram Township Stanhope Township Netcong Borough (in Morris County) |
| Newton High School | ? | 9–12 | 826 | 44 Ryerson Avenue Newton, NJ 07860 (Newton) | Andover Borough Andover Township Green Township Newton (town) |
| Sparta High School | 1959 | 9–12 | 1,218 | 70 West Mountain Road Sparta, NJ 07871 (Sparta Township) | Sparta Township |
| Sussex County Technical School (Previously Sussex County Vocational-Technical School) | 1969 | 9–12 | 528 | 105 North Church Road Sparta, NJ 07871 (Sparta Township) | County-wide |
| Vernon Township High School | 1975 | 9–12 | 1,541 | 1832 County Route 565 Vernon, NJ 07462-0800 (Vernon Township) | Vernon Township |
| Wallkill Valley Regional High School | 1982 | 9–12 | 806 | 10 Grumm Road Hardyston, NJ 07419 (Hardyston Township) | Franklin Borough Hardyston Township Hamburg Borough Ogdensburg Borough |
Prior to September 2014, Montague Township district sent students across state lines to attend middle school and high school at Port Jervis Middle School and Port Jervis High School, of the Port Jervis City School District, in nearby Port Jervis, New York. That month Montague Township's high school students began attending High Point Regional High, in a shift from Port Jervis that was to take four years to complete.

### Private high schools

| Institution | Affiliation | Founded | Grades | Students (2009–2010) | Address/location |
| Pope John XXIII Regional High School (previously Our Lady of the Lake School) | Roman Catholic Diocese of Paterson | 1956 | 9–12 | 916 | 28 Andover Road Sparta, NJ 07871 (Sparta Township) |

## Elementary or grammar schools (K-8)
### Public schools

| District | Municipalities served | Students (2008–2009) | Institutions (students, grades) | Receiving high school |
| Andover Regional School District | Andover Borough Andover Township | 675 | Florence M. Burd Elementary School (355, Grades K-4) Long Pond Middle School (320, Grades 5–8) | Newton High School |
| Byram Township School District | Byram Township | 1,119 | Byram Lakes Elementary School (606, Grades K-4) Byram Township Intermediate School (513, Grades 5–8) | Lenape Valley Regional High School |
| Frankford Township School District | Frankford Township | 658 | Frankford Township School (658, Grades K-8) | High Point Regional High School |
| Franklin Borough School District | Franklin Borough | 516 | Franklin Borough School (516, Grades K-8) | Wallkill Valley Regional High School |
| Fredon Township School District | Fredon Township | 338 | Fredon Township School (338, Grades K-6) | Kittatinny Regional High School (Grades 7–12) |
| Green Township School District | Green Township | 493 | Green Hills School (410, Grades K-8) | Newton High School |
| Hamburg School District | Hamburg Borough | 281 | Hamburg School (281, Grades K-8) | Wallkill Valley Regional High School |
| Hampton Township School District | Hampton Township | 407 | Marian Emmons McKeown Elementary School (407, Grades K-6) | Kittatinny Regional High School (Grades 7–12) |
| Hardyston Township School District | Hardyston Township | 740 | Hardyston Township School (465, Grades K-5) Hardyston Middle School (275, Grades 6–8) | Wallkill Valley Regional High School |
| Hopatcong Public Schools | Hopatcong Borough | 2,299 | Hudson Maxim School (296, Grade K) Hopatcong Elementary School (323, Grades 1–3) Durban Avenue School (342, Grades 4–5) Hopatcong Middle School (569, Grades 6–8) Hopatcong High School (769, Grades 9–12) | Hopatcong High School (769, Grades 9–12) |
| Lafayette Township School District | Lafayette Township | 290 | Lafayette Township Elementary School (290, Grades K-8) | High Point Regional High School |
| Montague Township School District | Montague Township | 292 | Montague Elementary School (283, Grades K-8) | High Point Regional High School Formerly: Port Jervis Middle School and Port Jervis High School (in New York) |
| Newton Public School District | Newton (town) | 1,577 | Merriam Avenue School (463, Grades K-5) Halsted Street Middle School (270, Grades 6–8) Newton High School (844, Grades 9–12) | Newton High School |
| Ogdensburg Borough School District | Ogdensburg Borough | 324 | Ogdensburg Public School (324, Grades K-8) | Wallkill Valley Regional High School |
| Sandyston-Walpack Consolidated School District | Sandyston Township Walpack Township | 160 | Sandyston-Walpack Consolidated School (160, Grades K-6) | Kittatinny Regional High School (Grades 7–12) |
| Sparta Township Public School District | Sparta Township | 3,996 | Helen Morgan School (623, K-4) Alpine School (798, preschool, Grades K-4) Mohawk Avenue School (defunct) Sparta Middle School (1,008, Grades 5–8) Sparta High School (1,235, Grades 9–12) | Sparta High School |
| Stanhope Public Schools | Stanhope Borough | 396 | Linden Avenue School (18, preschool) Valley Road Elementary School (378, Grades K-8) | Lenape Valley Regional High School |
| Stillwater Township School District | Stillwater Township | 401 | Stillwater Township School (401, Grades K-6) | Kittatinny Regional High School (Grades 7–12) |
| Sussex-Wantage Regional School District | Sussex Borough Wantage Township | 1,534 | Clifton E. Lawrence School (506, Grades K-2) Wantage Elementary School (543, Grades 3–5) Sussex Middle School (485, Grades 6–8) | High Point Regional High School |
| Vernon Township School District | Vernon Township | 4,273 | Walnut Ridge Primary School (588, Grades K-1) Cedar Mountain Primary School (401, Grades 2–4) Rolling Hills Primary School (460, Grades 2–4) Lounsberry Hollow Middle School (622, Grades 5–6) Glen Meadow Middle School (661, Grades 7–8) Vernon Township High School (1,541, Grades 9–12) | Vernon Township High School |

### Private schools

* Hilltop Country Day School (preschool, K-8) in Sparta Township, New Jersey
* Immaculate Conception School (K-8) in Franklin, New Jersey (affiliated Roman Catholic Diocese of Paterson)
* Northwest Christian School (K-8) in Hampton Township, New Jersey
* Reverend George A. Brown School (K-8) in Sparta, New Jersey (affiliated with Roman Catholic Diocese of Paterson)
* Saint Joseph's School (K-8) in Newton, New Jersey (affiliated with Roman Catholic Diocese of Paterson)
* Sussex Christian School (K-8) in Sussex, New Jersey

## Defunct institutions

The following schools or academic institutions are no longer in operation:
* Don Bosco College - a Roman Catholic seminary in Newton, New Jersey.
* Newton Collegiate Institute (also called "Newton Academy) - a private all-male school in Newton, New Jersey operated from 1851 to 1930.
* Upsala College (Wirths Campus) - a satellite campus of the private, Lutheran-affiliated Upsala College in East Orange, New Jersey.