2008-09 Class Size - School-level Detail
This file shows average class sizes and size of smallest and largest class for each school, broken out by grade and program type (General Education, Self-Contained Special Education, Collaborative Team Teaching (CTT)) for grades K-9 (where grade 9 is not reported by subject area), and for grades 5-9 (where available) and 9-12, aggregated by program type (General Education, CTT, and Self-Contained Special Education) and core course (e.g. English 9, Math A, US History, etc.). Official class size data for grades K-9* is based on October 31, 2008 Audited Registers; Core course class size data for MS CORE and grades 9-12 is based on January 23, 2009 active registers. *Where ninth grade data is not reported by core course - For middle schools using MSPA (ATS) or HSST to program, average class size is reported by core course, as well as by official class. - For high schools, sections with matching day, period, room and core subject, and combined enrollment less than 34 are assumed to be co-teaching situations. In the report, duplicated sections are subtracted as "MATCHED SECTIONS" and paired sections are added back as "ASSUMED TEAM TEACHING".
Open in the graph · Relate this dataset · What these columns mean
Freshness
The publisher's promise
How the agency that publishes this data says it keeps the data current.
Dormant
- Says it updates
- Historical data
- Actually updates about every
- —
- Publisher last updated the data
- Oct 13, 2011
Our mirror
Whether our copy of this data is current with the source.
In sync
- We last synced
- May 16, 2018, 9:33 AM
- Rows in our copy
- 18,944
- Rows at the source
- 18,944
- Our copy trails the source by
- under a minute
Columns
Each source column, with the name and type we use to store it.
The publisher has not provided a data dictionary.
1 of 15 columns carry a concept; 0 carry a description from the publisher. Read the concept column before you join. A column with no concept carries no claim from us, and a name that looks like a key is not one.
| Source field | Display name | What the publisher says it is | Concept | Source type | Stored as | Stored type | Row identifier | Unit |
|---|---|---|---|---|---|---|---|---|
program_type | PROGRAM TYPE | The publisher describes this column nowhere. | Not bound | Text | program_type | text | — | |
school_code | SCHOOL CODE | The publisher describes this column nowhere. | Not bound | Text | school_code | text | — | |
csd | CSD | The publisher describes this column nowhere. | Not bound | Number | csd | numeric | — | |
size_of_largest_class | SIZE OF LARGEST CLASS | The publisher describes this column nowhere. | Not bound | Number | size_of_largest_class | numeric | — | |
core_subject_ms_core_and_9_12_only_ | CORE SUBJECT (MS CORE and 9-12 ONLY) | The publisher describes this column nowhere. | Not bound | Text | core_subject_ms_core_and_9_12_only_ |
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This file was produced on Aug 20, 2026, 9:19 AM.
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Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/6wcu-cfa3
- Version
- Content hash:
b3079244ee70b521fc29d82e01fa060a1b8d1b4fb08c827b5a3a269241779e42 - What we changed
- We did not change the data. We stored it as published.
- Publisher
- codenownyc
- We retrieved it
- May 16, 2018, 9:33 AM
Update history
| Started | Kind | Result | Rows written | Produced by |
|---|---|---|---|---|
| Aug 6, 2026, 4:12 AM | full_replace | success | 18,944 | codenow-nycmesh-container-oci.jfrog.io/codenow/citytap-pull:0.1.47 |