Winchester Vaccination Data as of 5/10/2022 directly from mass.gov:

Notes on age: On 11/2/21, Pfizer vaccine was recommended for individuals aged 5-11. As of 5/20/21, the 0-19 years population category was split into 12-15 and 16-19 years to more closely reflect the population currently eligible for vaccines (12+). The total population for a given town includes all residents, including those ages 0-11. Total doses may include a small number of doses with ages incorrectly marked as 0-11 and thus sum of age group doses may not match total town doses.
Source: “Population Estimates 2011-2020, version 2019, Massachusetts Department of Public Health, Bureau of Environmental Health. Version 2019 years 2017-2019 apply updates from U.S. Census Bureau’s County Population by Characteristics, vintage 2019; all previous years apply updates from U.S. Census Bureau’s County Population by Characteristics, vintage 2018 or earlier. These estimates were developed by the University of Massachusetts Donahue Institute (UMDI) in partnership with the Massachusetts Department of Public Health, Bureau of Environmental Health.