Washington International School Photo - Some classes are held in the Mansion, one of the historic buildings on the Grades 6-12 Tregaron Campus.

Top 5 Best District Of Columbia Private Preschools Belonging to National Association of Independent Schools (NAIS) (2025)

For the 2025 school year, there are 10 private preschools belonging to National Association of Independent Schools (NAIS) serving 3,792 students in District Of Columbia. You can also find more schools membership associations in District Of Columbia.
The top ranked private preschools belonging to National Association of Independent Schools (NAIS) in District Of Columbia include Sidwell Friends School, Washington International School, and The River School.
The average acceptance rate is 29%, which is lower than the District Of Columbia private preschool average acceptance rate of 40%.
40% of private preschools belonging to National Association of Independent Schools (NAIS) in District Of Columbia are religiously affiliated (most commonly Episcopal and Friends).

Top Ranked Private Preschools Belonging to National Association of Independent Schools (NAIS) in District Of Columbia (2025)

School
Location
Grades
Students
The River School
The River School Photo - The River School offers an inviting, inclusive space for learning where children (18 months - Grade 5) are inspired to observe, wonder and experiment in a nurturing environment. We provide a strong academic foundation through creative, evidence-based teaching. Children are inspired to love learning, become critical thinkers, solve problems, and engage in meaningful inquiry. We are a caring, connected community.
Alternative School
4880 Macarthur Blvd NW
Washington, DC 20007
(202) 337-3554
Grades: NS-5
| 223 students
National Presbyterian School
National Presbyterian School Photo - National Presbyterian School is located in Northwest, DC, near the Tenleytown Metro stop and shares a 12 acre campus with National Presbyterian Church.
(Presbyterian)
4121 Nebraska Ave Nw
Washington, DC 20016
(202) 537-7569
Grades: NS-6
| 306 students
3500 Woodley Road NW
Washington, DC 20016
(202) 537-6485
Grades: PK-3
| 374 students
Lowell School
Lowell School Photo - Students at every grade-level enjoy hands-on STEAM education.
(10)
1640 Kalmia Road NW
Washington, DC 20012
(202) 577-2000
Grades: PK-8
| 313 students
Sidwell Friends School
(Friends)
3825 Wisconsin Ave NW
Washington, DC 20016
(202) 537-8100
Grades: PK-12
| 1,142 students
Washington International School
Washington International School Photo - The Primary School outdoor play area includes a field used for a variety of activities.
Special Program Emphasis
3100 Macomb Street NW
Washington, DC 20008
(202) 243-1800
Grades: NS-12
| 890 students
Aidan Montessori School
Aidan Montessori School Photo - Our outdoor learning environment.
Montessori School
2700 27th Street, Nw
Washington, DC 20008
(202) 387-2700
Grades: NS-6
| 154 students
210 South Carolina Avenue SE
Washington, DC 20003
(202) 355-4498
Grades: PK-8
| 227 students
St. Patrick's Episcopal Day School
St. Patrick's Episcopal Day School Photo
(Episcopal)
4700 Whitehaven Pkwy NW
Washington, DC 20007
(202) 342-2805
Grades: NS-8
| n/a students
Smithsonian Early Enrichment Center
Daycare / Preschool
Nmnh 10th & Constitution Ave Nw Rm. Ce-g50
Washington, DC 20560
(202) 633-1399
Grades: PK-K
| 163 students

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