NYC made about 274 new datasets public each year from 2018 to 2021, and 78 a year since
Datasets made public on NYC Open Data each year, 2011–2025 (bars), and the cumulative total (line), from the city's Local Law 251 asset inventory.
- Datasets made public each year (left axis)
- Cumulative total (right axis)
The Socrata catalog's own creation dates show the same peak and drop (287 to 306 a year in 2018–2021, 65 to 176 a year in 2022–2025). NYC Open Data lists 2,405 datasets as of October 12, 2026. Both sources count only datasets still on the portal; the made-public dates show the steeper drop (72%, against 60% on creation dates).
Sources: NYC OTI, Local Law 251 of 2017: Published Data Asset Inventory; NYC Open Data, What is Open Data.