2009 - 2010 Class Size - School-level Detail
This file shows average class sizes, pupil-teacher ratio, and size of largest and smallest classes 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.) Based on January 27, 2010 data. * Grade 9 Official Class data is included for 0K-09 schools. Core Course information for these sections is not reported.
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
- Dec 19, 2017, 11:39 AM
- Rows in our copy
- 25,476
- Rows at the source
- 25,476
- 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.
2 of 16 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 |
|---|---|---|---|---|---|---|---|---|
number_of_classes | NUMBER OF CLASSES | The publisher describes this column nowhere. | Not bound | Number | number_of_classes | numeric | — | |
csd | CSD | The publisher describes this column nowhere. | school_districtdeclared | Number | csd | numeric | — | |
size_of_smallest_class | SIZE OF SMALLEST CLASS | The publisher describes this column nowhere. | Not bound | Number | size_of_smallest_class | numeric | — | |
total_register | TOTAL REGISTER | The publisher describes this column nowhere. | Not bound | Number | total_register | numeric | — | |
average_class_size | AVERAGE CLASS SIZE | The publisher describes this column nowhere. | Not bound | Number | average_class_size | numeric | — | |
boro | BORO | The publisher describes this column nowhere. | boroughdeclared | Text | boro | text | — | |
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This file was produced on Aug 26, 2026, 10:57 PM.
Refresh this dataset
Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/d3ge-anaz
- Version
- Content hash:
129d41323595e005e30d2b776abb581a014e43223cc646f95adc08c37b90ba5e - What we changed
- We did not change the data. We stored it as published.
- Publisher
- codenownyc
- We retrieved it
- Dec 19, 2017, 11:39 AM
Update history
| Started | Kind | Result | Rows written | Produced by |
|---|---|---|---|---|
| Aug 26, 2026, 3:31 PM | full_replace | success | 25,476 | codenow-nycmesh-container-oci.jfrog.io/codenow/citytap-pull:0.1.72 |