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Excellent

#2 of 378 private schools in MD

Top 1% of private schools

The Katherine Thomas School

School

9975 MEDICAL CENTER DR, Rockville, MD 20850

Private

Enrollment

162

Student-Teacher

4.6:1

Score

9.1

Grades

Pre-K – 12th

Data vintage2021-22

How this school compares

Maryland private schools

#2 of 378

In Rockville

#1 of 14

public schools

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The Katherine Thomas School

9.1/10

School in Rockville · grades Pre-K – 12th. Start here, then compare fit against nearby and district options.

John L Gildner Regional Inst for Children & Adol

5.8/10

0.3 mi away. Use as a geographic alternative in the same move search.

Children's Manor Montessori School & Daycare

6.6/10

0.3 mi away. Use as a geographic alternative in the same move search.

About The Katherine Thomas School

The Katherine Thomas School is a private school in Rockville, MD. The Katherine Thomas School serves approximately 162 students, and covers grades Pre-K-12th, and has a 4.6:1 student-teacher ratio. The Katherine Thomas School has a current MySchoolScout rating of 9.1 out of 10 and ranks #2 of 378 private schools in MD.

How it compares2.8 pts above MD schools
  • This school 9.1 · Excellent
  • MD avg 6.3

What Parents Should Know

At 162 students, The Katherine Thomas School is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.

At 4.6:1 students to teachers, The Katherine Thomas School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.

The Katherine Thomas School is private, so it runs independently of the local district and sets its own curriculum. That freedom cuts both ways depending on what you want for your child. If you're considering it, start with the practical questions: tuition, financial aid, and how admissions work.

Compare to Public Schools

Beta

How The Katherine Thomas School compares to 33 public schools serving similar grades in Rockville, MD

Student-Teacher Ratio
4.6:1
This School
vs
13.2:1
Public Avg
Avg School Size
162
This School
vs
718
Public Avg
Avg School Scout Rating
9.1
This School
vs
7.6
Public Avg

Student Demographics

White 58.6% vs 0%
Black 16.7% vs 0%
Asian 10.5% vs 0%
Hispanic 8% vs 0%
The Katherine Thomas School Rockville Public Avg

Nearby Other Schools

School Rating
The Katherine Thomas School (this school) 9.1
John L Gildner Regional Inst for Children & Adol 5.8
Lakewood Elementary 9.3
Robert Frost Middle School 8.9
Thomas S. Wootton High 7.7
Fallsmead Elementary 9.2
College Gardens Elementary 8.1
Beall Elementary 8.8
PEP - Itinerant
Julius West Middle 8.2
Ritchie Park Elementary 9.1
Richard Montgomery High 7.1
Carl Sandburg Center 2.2
Maryvale Elementary 8.8
Candlewood Elementary 8.5
Bayard Rustin Elementary 9.1
Mill Creek Towne Elementary 8.8
Rockville High 8.2
Farmland Elementary 8.4
Redland Middle 6.9
Meadow Hall Elementary 6.5

Showing 20 of 33 schools. View all schools in Rockville

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

Preliminary

What This Rating Measures

This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in MD.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A+ 9.6 / 10
View breakdown
Student-Teacher Ratio 4.6:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
A+ 9.6 / 10
View breakdown
School Day Length 7.5 hours
Annual Instructional Hours 1,402.5
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A 8.7 / 10
View breakdown
Diversity Index 61%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A- 8.2 / 10
View breakdown
Enrollment 162
View data sources

Score basis: Private school model

Data coverage: 80% of scoring components had data

Components scored: 4 of 5

Ranking pool: Private schools in MD

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 58.6%
Black 16.7%
Asian 10.5%
Hispanic 8.0%
Two or More 6.2%

Source: NCES Private School Survey (PSS)

Location

9975 MEDICAL CENTER DR, Rockville, MD 20850

Nearby Alternatives

Families considering The Katherine Thomas School may also want to explore other schools in the area. Stone Mill Elementary (rated 9.4/10, 0.8 miles away, in nearby North Potomac), which scores slightly higher. Another option is Lakewood Elementary (rated 9.3/10, 1.0 miles away), with a very similar rating. Additionally, Fallsmead Elementary (rated 9.2/10, 2.1 miles away), with a very similar rating. For more schools in Rockville, see our Rockville schools guide .

Nearby Schools

20 within 2.6 mi
School Distance Rating
John L Gildner Regional Inst for Children & Adol Rockville 0.3 mi 5.8
CHILDREN'S MANOR MONTESSORI SCHOOL & DAYCARE Rockville 0.3 mi 6.6
LITTLE GENIUS MONTESSORI SCHOOL Rockville 0.7 mi
Stone Mill Elementary North Potomac 0.8 mi 9.4
FRANKLIN MONTESSORI SCHOOLS Rockville 0.8 mi
Lakewood Elementary Rockville 1.0 mi 9.3
PRIMARY MONTESSORI DAY SCHOOL Rockville 1.2 mi 5.0
Fields Road Elementary Gaithersburg 1.5 mi 7.5
MARCIA D SMITH SCHOOL Gaithersburg 1.7 mi
Robert Frost Middle School Rockville 1.8 mi 8.9
Summit Hall Elementary Gaithersburg 2.0 mi 3.8
Thomas S. Wootton High Rockville 1.9 mi 7.7
Rosemont Elementary Gaithersburg 2.0 mi 6.8
EPWORTH PRESCHOOL & KINDERGARTEN Gaithersburg 2.1 mi 6.4
Lakelands Park Middle Gaithersburg 1.9 mi 7.6
Fallsmead Elementary Rockville 2.1 mi 9.2
DuFief Elementary Gaithersburg 1.9 mi 8.8
Gaithersburg High Gaithersburg 2.6 mi 4.4
College Gardens Elementary Rockville 2.2 mi 8.1
GODDARD SCHOOL IN GAITHERSBURG Gaithersburg 2.6 mi 4.0

Neighborhood Census ACS (2019-2023)

Census data for ZIP 20850 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$122,691

Median Home Value

$687,200

Median Rent

$2,277/mo

Population

50,365

College Educated

67.1%

Homeownership

51.5%

Avg Commute

31 min

Poverty Rate

7.1%

Median Age

40.8

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
BALTIMORE LAB SCHOOL Baltimore, MD 8.8
ST ELIZABETH SCHOOL Baltimore, MD 8.6
THE HARBOUR SCHOOL AT ANNAPOLIS Annapolis, MD 8.6
THE SIENA SCHOOL Silver Spring, MD 8.4
THE MARYLAND SCHOOL FOR THE BLIND Baltimore, MD 8.2
FRIENDS MEETING SCHOOL Mount Airy, MD 8.1

Frequently Asked Questions

Common questions about The Katherine Thomas School

What grades does The Katherine Thomas School serve?

The Katherine Thomas School serves students in grades Pre-K through 12th.

How many students attend The Katherine Thomas School?

The Katherine Thomas School has an enrollment of approximately 162 students.

What is the student-teacher ratio at The Katherine Thomas School?

The student-teacher ratio at The Katherine Thomas School is 4.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does The Katherine Thomas School rank in MD?

The Katherine Thomas School ranks #2 of 378 private schools in MD.

What is The Katherine Thomas School's MySchoolScout rating?

The Katherine Thomas School has a current MySchoolScout rating of 9.1 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

Is The Katherine Thomas School a private school?

Yes, The Katherine Thomas School is a private coeducational school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is The Katherine Thomas School a religious school?

No, The Katherine Thomas School is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

Walk Score
51 Somewhat Walkable
Bike Score
63 Bikeable

Powered by Walk Score

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 12th
Enrollment
162
Gender Split
64% M / 36% F
Student-Teacher Ratio
4.6:1
Teachers (FTE)
35
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
7.5 hours
Days Per Year
187 days
Setting
Large Suburb
County
Montgomery County

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