City levels are determined by the county in which they are located. If the city is not named below, it may be located within a county listed below. Visit the National Association of Counties website and type the city name into the "City/Zip Search" tab to determine the city's county. If the city is not listed below or is not located in a county below, that city is a Level 1.
| Level | City | County |
|---|---|---|
| 3 | Andover | Essex |
| 4 | Boston / Cambridge | Suffolk, City of Cambridge |
| 4 | Burlington / Woburn | Middlesex, less the City of Cambridge |
| 4 | Falmouth | City Limits of Falmouth |
| 4 | Hyannis | Barnstable, less the City of Falmouth |
| 4 | Martha's Vineyard | Dukes |
| 4 | Nantucket | Nantucket |
| 4 | Northampton | Hampshire |
| 4 | Pittsfield | Berkshire |
| 3 | Plymouth / Taunton / New Bedford | Plymouth / Bristol |
| 3 | Quincy | Norfolk |
| 3 | Springfield | Hampden |
| 3 | Worcester | Worcester |