Massachusetts cities which start with the letter O.
| Place | Place Type | 2010 Population |
|---|---|---|
| Oak Bluffs | town | 4527 |
| Oakdale | ||
| Oakham | town | 1902 |
| Ocean Bluff | ||
| Ocean Spray | ||
| Old Furnace | ||
| Onset | ||
| Orange | town | 7839 |
| Orleans | town | 5890 |
| Osterville | ||
| Otis | town | 1612 |
| Otis A F B | ||
| Otis Air National Guard | ||
| Otis Ang | ||
| Otis Angb | ||
| Otter River | ||
| Oxford | town | 13709 |
Browse MA Cities by Letter
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