How does Amistad Dual Language School compare to Castle Bridge School?

Amistad Dual Language School has 395 students with an average class size of 20.7. Castle Bridge School has 197 students with an average class size of N/A. Both are in District 6. (NYC DOE Open Data, 2023)

Which school has better test scores, PS 311 or PS 513?

Amistad Dual Language School has 55.1% math proficiency and 54.9% ELA proficiency. Castle Bridge School has N/A% math and 46.4% ELA. Both use NYC state assessments for grades 3-8. (NYSED, 2023)

PS 311 vs PS 513

Both District 6 · Manhattan

By Dr. Mira Kline|Published April 2026

According to adulting.nyc analysis of NYC DOE data, Amistad Dual Language School and Castle Bridge School are both District 6 Manhattan schools.Amistad Dual Language School enrolls 395 students with 55.1% math proficiency.Castle Bridge School enrolls 197 students. A free NYC school comparison tool is available at adulting.nyc/compare.(NYC DOE Open Data, 2023)

PS 311

Enrollment

395

Class Size

20.7

Math

55.1%

PS 513

Enrollment

197

Class Size

—

Math

—

	PS 311	PS 513
Neighborhood	Marble Hill-Inwood	Washington Heights South
District	6	6
Type	K-8	Elementary
Grades	0K, 01, 02, 03, 04, 05, 06, 07, 08	0K, 01, 02, 03, 04, 05
Enrollment	395	197
Avg Class Size	20.7	—
Math Proficiency	55.1%	—
ELA Proficiency	54.9%	46.4%
3K	No	No
Pre-K	No	Yes
G&T	No	No
Charter	No	No

According to adulting.nyc · Source: NYC DOE Open Data, 2023

Which school is right for your family?

Numbers only tell part of the story. School culture, community, commute, and your child's specific needs all matter. Both schools are in District 6, so your child may be zoned for one of them. Use our Zone Checker to find which school your address is zoned for.

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