P.S. 121 Nelson A. Rockefeller

5301 20 Avenue, Brooklyn, NY 11204 · Brooklyn · K-8

DBN: 21K121

K-8

Zoned: Elementary

Zoned: Middle

SchoolDigger Elementary: 594 (of 2445)

SchoolDigger Middle: 407 (of 1500)

Niche Elementary: 614 (of 2817)

Niche Middle: 287 (of 1516)

Zones into these middle schools

P.S. 121 Nelson A. Rockefeller J.H.S. 227 Edward B. Shallow J.H.S. 223 The Montauk I.S. 096 Seth Low P.S. 099 Isaac Asimov P.S. 226 Alfred De B. Mason

Fed by these elementary schools

P.S. K134 P.S. 121 Nelson A. Rockefeller The SEEALL Academy P.S. 192 - The Magnet School for Math and Science Inquiry P.S. 048 Mapleton P.S. 226 Alfred De B. Mason P.S. 099 Isaac Asimov

Academic quality

ELA = English Language Arts (reading and writing). Math and Science are self-explanatory.
NY State tests ELA and Math every year in grades 3-8, and Science once, in grade 8 -- a school's numbers below only reflect whichever of those grades it actually serves (no social studies/history state test exists at this level).
"Avg. rating" is DOE's average student score on a 1.0-4.5 scale (higher is better) -- shown here as "value / 4.5" alongside the citywide average for the same metric as a benchmark for what's typical.

Attendance: 92.2%

71.5% attend 90%+ of days

Subject

Student group

Overall proficiency

ELA % proficient

68.3%(citywide avg: 60.3%)

ELA avg. rating

3.27 / 4.5(citywide avg: 3.15 / 4.5)

Math % proficient

70.8%(citywide avg: 64.4%)

Math avg. rating

3.37 / 4.5(citywide avg: 3.23 / 4.5)

Science % proficient (Grade 8 only)

59.1%

Science avg. rating (Grade 8 only)

3.20 / 4.5

By grade

Grade 3 ELA

87%

Grade 3 Math

82.6%

Grade 4 ELA

70%

Grade 4 Math

72.7%

Grade 5 ELA

63.2%

Small sample (19 students) -- treat as directional.

Grade 5 Math

66.7%

Grade 6 Math

73.3%

Small sample (15 students) -- treat as directional.

Grade 7 ELA

57.5%

Grade 7 Math

52.6%

Grade 8 ELA

69.2%

Grade 8 Math

81.6%

By student group

English Language Learners -- ELA

46.6%(citywide avg: 40.3%)

English Language Learners -- Math

65.1%(citywide avg: 57.3%)

Students with disabilities -- ELA

53.6%

Students with disabilities -- Math

66.7%

Asian students -- ELA

67.5%(citywide avg: 61.9%)

Asian students -- Math

88.6%(citywide avg: 83.3%)

Hispanic/Latino students -- ELA

54.4%(citywide avg: 47.7%)

Hispanic/Latino students -- Math

49.1%(citywide avg: 44.5%)

White students -- ELA

77.4%(citywide avg: 71.5%)

White students -- Math

74.5%(citywide avg: 70.5%)

"% proficient" is the share of students scoring Level 3 or 4 on the state test. Citywide comparisons are the average across schools of the same type. Grades and groups with very few tested students are flagged since a handful of kids can swing the percentage a lot; groups too small to report are omitted by DOE for student privacy -- that's also why Science, tested only once, shows up far less often than ELA/Math.Source: NYC Open Data: School Quality Reports Data (2023-24 school year)

See full grade-by-grade test results (ELA, Math, Science) →

Demographics

316 students enrolled

Economic Need Index: 75.8%

Race & ethnicity

Asian

16.8%

Black

Hispanic or Latino

40.2%

White

33.5%

Multiracial

1.6%

Native American

0.6%

Other groups

Students with disabilities

26.6%

English Language Learners

20.9%

Living in poverty

72.5%

Female

43.7%

Male

56.3%

Economic Need Index is DOE's estimate of the share of students facing economic hardship, based on eligibility for public assistance, temporary housing status, and household income relative to the poverty line. Some very high values are reported by DOE only as "Above 95%" for student privacy and are shown here as 95%.Source: NYC Open Data: Demographic Snapshot (2021-22 school year)

Kindergarten admissions priority breakdown

Admissions cycle

Zoned

33 seats

Not all seats filled last year

Priority groups, in the order NYC DOE offers seats. Tap a group for NYC DOE's exact wording.

1. Students who live in the zone and have a sibling at the school.

~100% admitted

There were fewer than 5 applicants in this group and all received offers last year.This group's offers alone accounted for ~12% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

2. Other students who live in the zone.

~100% admitted

3. Students who live in the district and have a sibling at the school.

~100% admitted

4. Students who live outside the district and have a sibling at the school.

No applicants

There were no applicants in this group.This group's offers alone accounted for ~0% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

5. Other students who live in the district.

~100% admitted

There were about 5 applicants in this group and all received offers last year.This group's offers alone accounted for ~15% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

6. Other students who live outside the district.

~100% admitted

Estimates derived from NYC DOE's own wording, which rounds and fuzzes small numbers for privacy. Each group's applicant count is independent of the others -- schools are usually oversubscribed, so applicant counts across groups often add up to more than the total seats. That's expected, not an error.Source: NYC DOE MySchools Admissions Data (2025-26 admissions cycle)

Middle School admissions priority breakdown

Admissions cycle

Zone Priority

49 seats

1 applicants per seat

Not all seats filled last year

Priority groups, in the order NYC DOE offers seats. Tap a group for NYC DOE's exact wording.

1. Priority to continuing students

~100% admitted

There were about 20 applicants in this group and all received offers last year.This group's offers alone accounted for ~41% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

2. Then to applicants whose sibling(s) will be enrolled in this school next year

No applicants

3. Then to residents of the middle school zone

No applicants

4. Then to District 21 students and residents

~100% admitted

There were less than 10 applicants in this group and all received offers last year.This group's offers alone accounted for ~18% of the program's seats -- not the same as this group's own admit rate above, since offers can exceed seats (not everyone who gets one enrolls).

5. Then to New York City residents

~100% admitted