For the 2026 school year, there are 11 private schools belonging to AIMSMDDC (Assoc. of independent Maryland and DC Schools) serving 5,727 students in District Of Columbia. You can also find more schools membership associations in District Of Columbia.
The top-ranked private schools belonging to AIMSMDDC (Assoc. of independent Maryland and DC Schools) in District Of Columbia include St. Anselm's Abbey School, Gonzaga College High School, and Sidwell Friends School.
The average acceptance rate is 39%, which is lower than the District Of Columbia private school average acceptance rate of 49%.
Top-Ranked Private Schools Belonging to AIMSMDDC (Assoc. of independent Maryland and DC Schools) in District Of Columbia (2026)
School
Location
Quick Facts
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.]( "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
Washington, DC 20007
(202) 337-3554
Gr: NS-5 | 185 students Avg. class size: 12 students Sports: 3 | Extracurrculars: 8 Tuition & acceptance rate listed
St. Anselm's Abbey School![St. Anselm's Abbey School Photo - Our rigorous curriculum is second to none. You will take 7APs to graduate from our school. Students receive over $5 million dollars in merit scholarships to college each year.]( "St. Anselm's Abbey School Photo - Our rigorous curriculum is second to none. You will take 7APs to graduate from our school. Students receive over $5 million dollars in merit scholarships to college each year.")
All-boys | Alternative School (Catholic)
4501 South Dakota Ave Ne
Washington, DC 20017
(202) 269-2350
Washington, DC 20017
(202) 269-2350
Gr: 6-12 | 247 students Sports: 13 Tuition listed
3500 Woodley Road NW
Washington, DC 20016
(202) 537-6485
Washington, DC 20016
(202) 537-6485
Gr: PK-3 | 374 students Avg. class size: 20 students Extracurrculars: 2 Tuition listed
4200 Davenport Street, NW
Washington, DC 20016
(202) 274-3200
Washington, DC 20016
(202) 274-3200
Gr: PK-12 | 1,050 student Avg. class size: 8 students Sports: 19 | Extracurrculars: 26 Tuition & acceptance rate listed
19 I Street NW
Washington, DC 20001
(202) 336-7100
Washington, DC 20001
(202) 336-7100
Gr: 9-12 | 962 students Avg. class size: 20 students Sports: 19 Tuition & acceptance rate listed
3000 Cathedral Avenue NW
Washington, DC 20008
(202) 939-8814
Washington, DC 20008
(202) 939-8814
Gr: K-12 | 659 students Avg. class size: 16 students Sports: 13 | Extracurrculars: 26 Tuition & acceptance rate listed
National Cathedral School
All-girls (Episcopal)
3612 Woodley Road NW
Washington, DC 20016
(202) 537-6300
Washington, DC 20016
(202) 537-6300
Gr: 4-12 | 599 students Avg. class size: 12 students Sports: 16 Tuition listed
Sidwell Friends School
(Friends)
3825 Wisconsin Ave NW
Washington, DC 20016
(202) 537-8100
Washington, DC 20016
(202) 537-8100
Gr: PK-12 | 1,142 student Avg. class size: 12 students Sports: 16 | Extracurrculars: 33 Tuition & acceptance rate listed
Aidan Montessori School![Aidan Montessori School Photo - Our outdoor learning environment.]( "Aidan Montessori School Photo - Our outdoor learning environment.")
Montessori School
2700 27th Street, Nw
Washington, DC 20008
(202) 387-2700
Washington, DC 20008
(202) 387-2700
Gr: NS-6 | 154 students Avg. class size: 20 students Extracurrculars: 8 Tuition & acceptance rate listed
210 South Carolina Avenue SE
Washington, DC 20003
(202) 355-4498
Washington, DC 20003
(202) 355-4498
Gr: PK-8 | 227 students Avg. class size: 22 students Sports: 3 | Extracurrculars: 8 Tuition & acceptance rate listed
Washington School For Girls![Washington School For Girls Photo - The Washington School for Girls develops confidence, competence, and compassion in young leaders.]( "Washington School For Girls Photo - The Washington School for Girls develops confidence, competence, and compassion in young leaders.")
All-girls (Catholic)
1865 Mississippi Ave SE
Washington, DC 20020
(202) 678-1113
Washington, DC 20020
(202) 678-1113
Gr: 3-8 | 128 students Avg. class size: 13 students Sports: 2 | Extracurrculars: 7 Tuition & acceptance rate listed
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