Best Public Schools in Demarest, NJ

Demarest, New Jersey, has five listed schools spanning elementary, middle and high school, including two high schools; four have reported test scores, while County Road has none in the supplied data. The clearest overall finding is that every reported 2025–26 school score with a numerical result was above its matching state figure, although strengths differ by subject and grade.

The high-school leaders change by subject: Bergen County Institute for Science and Technology led ninth-grade Algebra I with 87%, 23 points above Northern Valley Regional High School at Demarest; Northern Valley led Geometry with 92%, compared with Bergen County Institute’s 74%, an 18-point difference. Both high schools also exceeded the state in grade 11 science, with 75% at Bergen County Institute and 70% at Northern Valley. Demarest Middle School scored 100% in Algebra I End of Course, but its grade 6 ELA result was 63%, below its grade 5 result of 84%. Luther Lee Emerson School exceeded state results in its reported grades and subjects. SchoolDigger ranked Bergen County Institute 17th of 434 high schools, Northern Valley 23rd of 434, Demarest Middle 65th of 743, and Luther Lee Emerson 150th of 1,331 in 2025–26.

Recent changes are mixed, with most matched scores trending downward. Northern Valley’s comparable high-school scores fell by an average of 4 points; Bergen County Institute’s fell by 1 point on average, despite a 17-point rise in each reported Algebra I result, while its Geometry and science scores declined. Demarest Middle’s matched scores fell by an average of 2 points, including a 29-point drop in grade 6 ELA; Luther Lee Emerson’s fell by 11 points on average. As context, all five schools reported free/reduced lunch eligible for 2024–25, from 1% at Demarest Middle to 8% at Bergen County Institute; these figures do not explain achievement. Reported student–teacher ratios ranged from 10.0 at Demarest Middle and Luther Lee Emerson to 96.6 at Bergen County Institute, another notable difference for families weighing school-specific information.