Quick Facts (2026)
- Top Ranked NH School
- School Type: Montessori School
- Grades: Prekindergarten-8
- Enrollment: 163 students
- Application Deadline: None / Rolling
- Source: ✓Verified school update
The Cornerstone School
About the School
- The Cornerstone School is deeply committed to laying the foundation upon which each child can build in order to become the architect of his or her own future.
- The foundation consists of an open, inquiring mind, a loving heart, and a solid inner confidence that permits respect for our earth and its inhabitants.
- The groundwork is laid in an environment of intellectual challenge, and close, supportive relationships among students, teachers, and parents.
Quick Facts (2026)
- Top Ranked NH School
- School Type: Montessori School
- Grades: Prekindergarten-8
- Enrollment: 163 students
- Application Deadline: None / Rolling
- Source: ✓Verified school update
School Rankings
The Cornerstone School ranks among the top 20% of private schools in New Hampshire for:
Category
Attribute
Student Body
School Facts
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
Students By Grade
Year Founded
1985
Campus Size
11 acres
Student Body
Total Students
163 students
Student Body Type
Co-ed
% Students of Color
8%
State avg.: 18%
Academics & Faculty
Total Classroom Teachers
28 teachers
Student-Teacher Ratio
6:1
National avg.: 11:1
Tuition & Acceptance Rate
Admission Deadline
None / Rolling
Application URL
School Notes
- School Motto: The goal of early childhood education should be to activate the child's own natural desire to learn.
- The Cornerstone School is deeply committed to laying the foundation upon which each child can build in order to become the architect of his or her own future. The foundation consists of an open, inquiring mind, a loving heart, and a solid inner confidence that permits respect for our earth and its inhabitants. The groundwork is laid in an environment of intellectual challenge, and close, supportive relationships among students, teachers, and parents.
Source: Verified school update
Frequently Asked Questions
What is The Cornerstone School's ranking?
The Cornerstone School ranks among the top 20% of private schools in New Hampshire for: Largest student body.
When is the application deadline for The Cornerstone School?
The application deadline for The Cornerstone School is rolling (applications are reviewed as they are received year-round).
Related Schools
Show me:
People that viewed The Cornerstone School also viewed these schools: Seacoast Waldorf School, Hampstead Academy, Williams Bridge Academy, St. Patrick Academy and Heronfield Academy.
The nearest high school and elementary school to The Cornerstone School is Williams Bridge Academy (3.4 miles away)
The nearest preschool is Acorn School (2.4 miles away)
Show me:
Show me:
Distance: 9.0 mi
Gr: PK-8 | 144 students
Avg. class size: 12 students
Sports: 11 | Extracurriculars: 2
Specialized Curriculum
403 ME-236
Eliot, ME 03903
(207) 686-3140
Distance: 18.0 mi
Gr: PK-8 | 63 students
Avg. class size: 6 students
Extracurriculars: 7
320 East Road
Hampstead, NH 03841
(603) 329-4406
Distance: 3.4 mi
Gr: 4-12 | 60 students
Avg. class size: 5 students
Extracurriculars: 3
Special Education School
1247 Washington Rd.
Rye, NH 03870
(603) 964-4903
Distance: 4.3 mi
Gr: PK-8 | 237 students
Avg. class size: 20 students
Sports: 9
Catholic
315 Banfield Road
Portsmouth, NH 03801
(512) 944-5765
Distance: 4.7 mi
Gr: 6-8 | 90 students
Avg. class size: 15 students
Sports: 3 | Extracurriculars: 5
Specialized Curriculum (Episcopal)
356 Exeter Rd
Hampton Falls, NH 03844
(603) 772-9093
Distance: 3.4 mi
Gr: 4-12 | 60 students
Avg. class size: 5 students
Extracurriculars: 3
Special Education School
1247 Washington Rd.
Rye, NH 03870
(603) 964-4903
Distance: 7.7 mi
Gr: PK-12 | 45 students
Avg. class size: 14 students
Sports: 4
Specialized Curriculum
125 Kingston Rd
Exeter, NH 03833
(603) 778-1383
Distance: 9.4 mi
Gr: PK-12 | 673 students
Avg. class size: 15 students
Sports: 10 | Extracurriculars: 16
Christian
20 Seaborne Dr
Dover, NH 03820
(603) 742-3617
Distance: 21.9 mi
Gr: 9-12 | 717 students
907 First Nh Tpke
Northwood, NH 03261
(603) 942-5531
Distance: 40.8 mi
Gr: NS-9 | 125 students
Avg. class size: 20 students
Montessori School
9 South Merrimack Road
Hollis, NH 03049
(603) 400-1515
Distance: 9.0 mi
Gr: PK-8 | 144 students
Avg. class size: 12 students
Sports: 11 | Extracurriculars: 2
Specialized Curriculum
403 ME-236
Eliot, ME 03903
(207) 686-3140
Distance: 18.0 mi
Gr: PK-8 | 63 students
Avg. class size: 6 students
Extracurriculars: 7
320 East Road
Hampstead, NH 03841
(603) 329-4406
Distance: 3.4 mi
Gr: 4-12 | 60 students
Avg. class size: 5 students
Extracurriculars: 3
Special Education School
1247 Washington Rd.
Rye, NH 03870
(603) 964-4903
Distance: 4.3 mi
Gr: PK-8 | 237 students
Avg. class size: 20 students
Sports: 9
Catholic
315 Banfield Road
Portsmouth, NH 03801
(512) 944-5765
Distance: 4.7 mi
Gr: 6-8 | 90 students
Avg. class size: 15 students
Sports: 3 | Extracurriculars: 5
Specialized Curriculum (Episcopal)
356 Exeter Rd
Hampton Falls, NH 03844
(603) 772-9093
Distance: 9.0 mi
Gr: PK-8 | 144 students
Avg. class size: 12 students
Sports: 11 | Extracurriculars: 2
Specialized Curriculum
403 ME-236
Eliot, ME 03903
(207) 686-3140
Distance: 18.0 mi
Gr: PK-8 | 63 students
Avg. class size: 6 students
Extracurriculars: 7
320 East Road
Hampstead, NH 03841
(603) 329-4406
Distance: 4.3 mi
Gr: PK-8 | 237 students
Avg. class size: 20 students
Sports: 9
Catholic
315 Banfield Road
Portsmouth, NH 03801
(512) 944-5765
Distance: 6.2 mi
Gr: PK-8 | 240 students
Avg. class size: 20 students
Sports: 4
Catholic
289 Lafayette Rd
Hampton, NH 03842
(603) 926-3254
Distance: 7.7 mi
Gr: PK-12 | 45 students
Avg. class size: 14 students
Sports: 4
Specialized Curriculum
125 Kingston Rd
Exeter, NH 03833
(603) 778-1383
Distance: 2.4 mi
Gr: PK-K | 100 students
Daycare / Preschool
136 Winnicut Rd.
Stratham, NH 03885
(603) 686-1256
Distance: 3.4 mi
Gr: 4-12 | 60 students
Avg. class size: 5 students
Extracurriculars: 3
Special Education School
1247 Washington Rd.
Rye, NH 03870
(603) 964-4903
Distance: 3.9 mi
Gr: PK-K | 52 students
Daycare / Preschool
171 Exeter Rd
Newfields, NH 03856
(603) 772-3811
Distance: 4.1 mi
Gr: PK-K | 66 students
Daycare / Preschool
15 Hampton Rd
Exeter, NH 03833
(603) 742-9995
Distance: 4.3 mi
Gr: PK-8 | 237 students
Avg. class size: 20 students
Sports: 9
Catholic
315 Banfield Road
Portsmouth, NH 03801
(512) 944-5765
Distance: 3.4 mi
Gr: 4-12 | 60 students
Avg. class size: 5 students
Extracurriculars: 3
Special Education School
1247 Washington Rd.
Rye, NH 03870
(603) 964-4903
Distance: 4.7 mi
Gr: 8-11 | 17 students
All-girls | Special Education School
14 Lafayette Rd, Unit #4
North Hampton, NH 03862
(603) 932-7809
Distance: 5.3 mi
Gr: 9-12 | 1,106 students
Avg. class size: 12 students
Sports: 22
Alternative School
20 Main St
Exeter, NH 03833
(603) 777-3437
Distance: 5.5 mi
Gr: 6-12 | 75 students
Specialized Curriculum
40 Industrial Dr
Exeter, NH 03833
(603) 775-7423
Distance: 6.2 mi
Gr: PK-12
Special Education School
215 Commerce Way, Suite 300
Portsmouth, NH 03801
(603) 433-4192
Distance: 3.4 mi
Gr: 4-12 | 60 students
Avg. class size: 5 students
Extracurriculars: 3
Special Education School
1247 Washington Rd.
Rye, NH 03870
(603) 964-4903
Distance: 4.3 mi
Gr: PK-8 | 237 students
Avg. class size: 20 students
Sports: 9
Catholic
315 Banfield Road
Portsmouth, NH 03801
(512) 944-5765
Distance: 4.7 mi
Gr: 6-8 | 90 students
Avg. class size: 15 students
Sports: 3 | Extracurriculars: 5
Specialized Curriculum (Episcopal)
356 Exeter Rd
Hampton Falls, NH 03844
(603) 772-9093
Distance: 4.7 mi
Gr: 8-11 | 17 students
All-girls | Special Education School
14 Lafayette Rd, Unit #4
North Hampton, NH 03862
(603) 932-7809
Distance: 5.5 mi
Gr: 6-12 | 75 students
Specialized Curriculum
40 Industrial Dr
Exeter, NH 03833
(603) 775-7423
Distance: 2.4 mi
Gr: PK-K | 100 students
Daycare / Preschool
136 Winnicut Rd.
Stratham, NH 03885
(603) 686-1256
Distance: 3.9 mi
Gr: PK-K | 52 students
Daycare / Preschool
171 Exeter Rd
Newfields, NH 03856
(603) 772-3811
Distance: 4.1 mi
Gr: PK-K | 66 students
Daycare / Preschool
15 Hampton Rd
Exeter, NH 03833
(603) 742-9995
Distance: 4.3 mi
Gr: PK-8 | 237 students
Avg. class size: 20 students
Sports: 9
Catholic
315 Banfield Road
Portsmouth, NH 03801
(512) 944-5765
Distance: 4.9 mi
Gr: NS | 282 students
Avg. class size: 8 students
Daycare / Preschool
11 Marlboro Street
Exeter, NH 03833
(603) 772-3342
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Miles
Quick Facts
Dr. Janice Adie Day School
Special Education School
(Math: ≤10% | Reading: ≤10%)
Rank:
Rank:
1/
Bottom 50%10
60 Carlisle Street
Lowell, MA 01851
(978) 674-2405
Lowell, MA 01851
(978) 674-2405
9517.8 miles
Gr: PK-12 | 70 students Student-Teacher Ratio: 5:1 Minority enrollment: 70%
Comprehensive Grammar School
(Math: 31% | Reading: 38%)
Rank:
Rank:
4/
Bottom 50%10
100 Howe Street
Methuen, MA 01844
(978) 722-9051
Methuen, MA 01844
(978) 722-9051
9518.1 miles
Gr: K-8 | 1,046 students Student-Teacher Ratio: 12:1 Minority enrollment: 67%
Dr. L. F. Soule School
(Math: 55-59% | Reading: 35-39%)
Rank:
Rank:
6/
Top 50%10
173 South Policy St.
Salem, NH 03079
(603) 893-7053
Salem, NH 03079
(603) 893-7053
9518.2 miles
Gr: K-5 | 270 students Student-Teacher Ratio: 12:1 Minority enrollment: 28%
William T. Barron Elementary School
(Math: 55-59% | Reading: 50-54%)
Rank:
Rank:
7/
Top 50%10
55 Butler St.
Salem, NH 03079
(603) 893-7067
Salem, NH 03079
(603) 893-7067
9518.4 miles
Gr: K-5 | 377 students Student-Teacher Ratio: 14:1 Minority enrollment: 18%
Mary A. Fisk Elementary School
(Math: 55-59% | Reading: 40-44%)
Rank:
Rank:
6/
Top 50%10
14 Main St.
Salem, NH 03079
(603) 893-7051
Salem, NH 03079
(603) 893-7051
9518.5 miles
Gr: K-5 | 272 students Student-Teacher Ratio: 12:1 Minority enrollment: 30%
School Reviews
5 8/8/2019
I have three children at this school. Each one of my kids has unique strengths and challenges with respect to their educational needs. I have loved the way this school has catered to these needs. The kids are with the same pair of caring teachers for 3 years, allowing them to develop a strong relationship and to be understood. We have had a wonderful experience at every classroom level.
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Did You Know?
The average private school tuition in Rockingham County, NH is $19,359 for elementary schools and $31,113 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Rockingham County, NH is 67% (read more about average acceptance rates across the country).
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