For the 2026 school year, there are 6 public preschools serving 3,419 students in 20878, MD.
The top-ranked public preschools in 20878, MD are Stone Mill Elementary School, Diamond Elementary School and Rachel Carson Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public preschools in zipcode 20878 have an average math proficiency score of 54% (versus the Maryland public pre school average of 28%), and reading proficiency score of 61% (versus the 39% statewide average). Pre schools in 20878, MD have an average ranking of 9/10, which is in the top 20% of Maryland public pre schools.
Minority enrollment is 74% of the student body (majority Hispanic and Asian), which is more than the Maryland public preschool average of 71% (majority Black).
Best 20878, MD Public Preschools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Stone Mill Elementary School
(Math: 72% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
14323 Stonebridge View Dr
Gaithersburg, MD 20878
(240) 740-5450
Gaithersburg, MD 20878
(240) 740-5450
Gr: PK-5 | 516 students Student-teacher ratio: 15:1 Minority enrollment: 77%
Rank: #22.
Diamond Elementary School
(Math: 64% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
4 Marquis Dr
Gaithersburg, MD 20878
(240) 740-2120
Gaithersburg, MD 20878
(240) 740-2120
Gr: PK-5 | 654 students Student-teacher ratio: 15:1 Minority enrollment: 75%
Rank: #33.
Rachel Carson Elementary School
(Math: 71% | Reading: 74%)
Rank:
Rank:
10/
Top 5%10
100 Tschiffely Square Rd
Gaithersburg, MD 20878
(240) 740-1840
Gaithersburg, MD 20878
(240) 740-1840
Gr: PK-5 | 671 students Student-teacher ratio: 17:1 Minority enrollment: 55%
Rank: #44.
Thurgood Marshall Elementary School
(Math: 44% | Reading: 51%)
Rank:
Rank:
7/
Top 50%10
12260 Mcdonald Chapel Dr
Gaithersburg, MD 20878
(240) 740-5990
Gaithersburg, MD 20878
(240) 740-5990
Gr: PK-5 | 553 students Student-teacher ratio: 13:1 Minority enrollment: 69%
Rank: #55.
Fields Road Elementary School
(Math: 32% | Reading: 41%)
Rank:
Rank:
6/
Top 50%10
1 School Dr
Gaithersburg, MD 20878
(240) 740-7000
Gaithersburg, MD 20878
(240) 740-7000
Gr: PK-5 | 453 students Student-teacher ratio: 12:1 Minority enrollment: 77%
Rank: #66.
Brown Station Elementary School
(Math: 23% | Reading: 23%)
Rank:
Rank:
4/
Bottom 50%10
851 Quince Orchard Blvd
Gaithersburg, MD 20878
(240) 740-0260
Gaithersburg, MD 20878
(240) 740-0260
Gr: PK-5 | 572 students Student-teacher ratio: 10:1 Minority enrollment: 93%
Frequently Asked Questions
What are the top-ranked public preschools in 20878, MD?
The top-ranked public preschools in 20878, MD include Stone Mill Elementary School, Diamond Elementary School and Rachel Carson Elementary School.
How many public preschools are located in 20878?
6 public preschools are located in 20878.
What is the racial composition of students in 20878?
20878 public preschools minority enrollment is 74% of the student body (majority Hispanic and Asian), which is more than the Maryland public preschools average of 71% (majority Black).
Recent Articles
When “Free Public School” Still Isn’t Free
Discover the hidden costs of public school in 2026, from supplies and fees to transportation, technology, and extracurricular expenses.
What a District Budget Cut Means for Your Child's School Experience
Learn how district budget cuts can affect class sizes, programs, staffing, transportation, and your child's daily school experience in 2026.
School Closure Risk: What Parents Should Check Before Moving
Learn how parents can assess school closure risk before buying or renting in a district, using enrollment, funding, and boundary data.