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Youth programs in Canton are run by several separate organizations — the municipality, the school district, independent volunteer clubs and private studios. Here is what is actually here, who runs it, and where you register.
Canton is in Norfolk County, with a 2020 census population of 24,370.
The high school teams are the Bulldogs, in Green and white, competing in the Hockomock League (MIAA, Division 2).
This guide lists 133 programs from 33 organizations. 68 of them publish either an exact fee or a free claim; 4 are free.
Names, grade spans and enrollments are the National Center for Education Statistics' Common Core of Data for 2024–25. A school run by another district is marked, because that is the one a family has to apply to separately.

These are the four organizations running the most programs in this guide, with the site each one registers on. Across all 133 listings there are 25 different registration sites, which is the thing worth knowing before you start: there is no single front door.
133 listings come from 33 separate organizations, and no one of them runs more than a fraction of it. The four biggest are Canton Parks and Recreation (48), Canton Public Schools (33), Canton Public Library (9), Canton Youth Basketball Association (4).
How the listings split: 66 sport, 28 camps or clinics, and 39 arts, STEM, after-school and life-skills classes.

8 schemes a Canton family can actually apply to, each one listed with what it covers, who qualifies and the page that states its own rules. Where a listing itself offers aid, its card carries an Aid available badge and the provider's own words.
Where the research found nothing, this guide leaves the gap visible rather than filling it.
No listing here claims an open place. Where a provider publishes a term but no dates, the card says the dates are not published rather than assuming last year's repeat.