2026 lists

Fastest-Growing Private Schools in Hillsborough County, NH

Private schools in Hillsborough County, NH whose enrollment has grown the most over the past decade. Top 6 of 6 schools.

#1 Fastest-Growing Private Schools in Hillsborough County, NH

Independent school · Grades Pre-K–12

Enrollment up 243% in about a decade

Wilton, NH

B+Overall grade333 students11 students per teacher

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#2 Fastest-Growing Private Schools in Hillsborough County, NH

Independent school · Grades K–8

Enrollment up 112% in about a decade

Nashua, NH

B-Overall grade309 students11 students per teacher

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#3 Fastest-Growing Private Schools in Hillsborough County, NH

Independent school · Grades Pre-K–11

Enrollment up 111% in about a decade

Nashua, NH

AOverall grade80 students7 students per teacher

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#4 Fastest-Growing Private Schools in Hillsborough County, NH

Independent Catholic school · Grades 7–12

Enrollment up 57% in about a decade

Manchester, NH

A+Overall grade108 students10 students per teacher

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#5 Fastest-Growing Private Schools in Hillsborough County, NH

Montessori school · Grades Pre-K–8

Enrollment up 49% in about a decade

Hollis, NH

BOverall grade88 students10 students per teacher

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#6 Fastest-Growing Private Schools in Hillsborough County, NH

Independent Catholic school · Grades 7–8

Enrollment up 16% in about a decade

Manchester, NH

AOverall grade106 students11 students per teacher

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From official public records, updated October 2026.