Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Center for Advanced Engineering Study | Building | 15 | Middlesex | 42 21 37 N | 071 05 38 W |
| Center for Coastal Studies | Building | 4 | Barnstable | 42 02 32 N | 070 11 37 W |
| Center for Religious Life | Building | 100 | Hampshire | 42 22 19 N | 072 31 12 W |
| Central Fire Station | Building | 8 | Essex | 42 29 43 N | 070 51 46 W |
| Central Fire Station | Building | 15 | Norfolk | 42 14 39 N | 070 59 56 W |
| Central Fire Station | Building | 45 | Plymouth | 42 05 08 N | 071 01 16 W |
| Central Square Branch Cambridge Public Library | Building | 12 | Middlesex | 42 21 52 N | 071 06 12 W |
| Central Wharf Warehouse Visitor Center | Building | 283 | Essex | 42 31 15 N | 071 53 15 W |
| Chabad House | Building | 70 | Hampshire | 42 23 01 N | 072 31 41 W |
| Chandler Gray House | Building | 6 | Barnstable | 41 43 03 N | 070 13 51 W |
| Chandler House | Building | 20 | Middlesex | 42 24 08 N | 071 07 21 W |
| Chapin Auditorium | Building | 65 | Hampshire | 42 15 14 N | 072 34 35 W |
| Chapin Hall | Building | 89 | Hampshire | 42 22 19 N | 072 30 54 W |
| Chapman Hall | Building | 83 | Hampshire | 42 22 07 N | 072 31 14 W |
| Charles Drew House | Building | 76 | Hampshire | 42 22 24 N | 072 30 49 W |
| Charles Hayden Memorial Library | Building | 10 | Suffolk | 42 22 33 N | 071 03 52 W |
| Charles Playhouse | Building | 6 | Suffolk | 42 20 56 N | 071 03 57 W |
| Charles River Information Center | Building | 3 | Suffolk | 42 22 12 N | 071 03 45 W |
| Charles River Museum of Industry | Building | 13 | Middlesex | 42 22 23 N | 071 14 05 W |
| Charles River Museum of Industry Library | Building | 12 | Middlesex | 42 22 23 N | 071 14 05 W |
| Charles Street Jail | Building | 4 | Middlesex | 42 21 44 N | 071 04 11 W |
| Charles Street Meeting House | Building | 14 | Suffolk | 42 21 27 N | 071 04 14 W |
| Charles W Galloupe Memorial Library | Building | 18 | Essex | 42 32 50 N | 070 52 45 W |
| Chase Building | Building | 3 | Middlesex | 42 22 02 N | 071 07 25 W |
| Chatham Railroad Museum | Building | 18 | Barnstable | 41 41 21 N | 069 57 25 W |
| Chatham Station (historical) | Building | 15 | Barnstable | 41 41 08 N | 069 57 38 W |
| Chelmsford Center Town Hall | Building | 36 | Middlesex | 42 35 58 N | 071 20 40 W |
| Chelmsford Glass Works Long House | Building | 33 | Middlesex | 42 38 03 N | 071 21 56 W |
| Chelmsford Public Library | Building | 49 | Middlesex | 42 35 33 N | 071 21 00 W |
| Chelsea City Hall | Building | 8 | Suffolk | 42 23 38 N | 071 02 00 W |
| Chelsea Public Library | Building | 12 | Suffolk | 42 23 37 N | 071 01 59 W |
| Cheney Hall | Building | 57 | Hampden | 42 06 08 N | 072 33 25 W |
| Chenoweth Laboratory | Building | 67 | Hampshire | 42 23 30 N | 072 31 49 W |
| Cheshire Public Library | Building | 301 | Berkshire | 42 33 42 N | 073 09 42 W |
| Cheshire Town Hall | Building | 303 | Berkshire | 42 33 43 N | 073 09 44 W |
| Chester C Corbin Public Library | Building | 143 | Worcester | 42 02 59 N | 071 52 48 W |
| Chester Town Hall | Building | 188 | Hampden | 42 16 49 N | 072 58 57 W |
| Chesterfield Town Hall | Building | 438 | Hampshire | 42 23 29 N | 072 50 25 W |
| Chesterwood Museum | Building | 319 | Berkshire | 42 16 08 N | 073 21 12 W |
| Chestnut Hill Benevolent Association | Building | 99 | Norfolk | 42 19 31 N | 071 09 06 W |
| Chestnut Hill Community Center | Building | 105 | Worcester | 42 02 49 N | 071 34 36 W |
| Chestnut Hill Meeting House | Building | 119 | Worcester | 42 02 42 N | 071 34 42 W |
| Cheverus Hall | Building | 79 | Middlesex | 42 20 04 N | 071 10 31 W |
| Chicopee City Hall | Building | 32 | Hampden | 42 08 54 N | 072 36 20 W |
| Chicopee Falls Branch Chicopee Public Library | Building | 47 | Hampden | 42 09 08 N | 072 34 49 W |
| Child Building | Building | 9 | Middlesex | 42 22 44 N | 071 07 05 W |
| Childrens Home | Building | 44 | Hampden | 42 09 43 N | 072 38 13 W |
| Childrens Museum | Building | 83 | Hampden | 42 06 36 N | 072 26 08 W |
| Childrens Museum | Building | 12 | Suffolk | 42 21 05 N | 071 02 48 W |
| Chilmark Community Center | Building | 22 | Dukes | 41 20 34 N | 070 44 39 W |
| Chilmark Public Library | Building | 23 | Dukes | 41 20 36 N | 070 44 40 W |
| Chilmark Town Hall | Building | 25 | Dukes | 41 20 37 N | 070 44 37 W |
| Chilton Club | Building | 3 | Suffolk | 42 21 07 N | 071 04 37 W |
| Chinese Cultural Institute | Building | 14 | Suffolk | 42 21 05 N | 071 04 06 W |
| Christa Corrigan McAulife Branch Framingham Public Library | Building | 53 | Middlesex | 42 19 35 N | 071 24 13 W |
| Christian Science Complex | Building | 5 | Suffolk | 42 20 37 N | 071 05 05 W |
| Chrysler Art Museum | Building | 6 | Barnstable | 42 02 54 N | 070 11 27 W |
| Church-Tory House | Building | 38 | Bristol | 41 42 42 N | 071 09 08 W |
| Churchill Hall | Building | 4 | Suffolk | 42 20 18 N | 071 05 21 W |
| Churchill Library | Building | 63 | Hampden | 42 06 55 N | 072 31 08 W |
| Ciruti Center for Foreign Languages | Building | 55 | Hampshire | 42 15 18 N | 072 34 23 W |
| Citizens Library Association of West Acton | Building | 71 | Middlesex | 42 28 34 N | 071 28 27 W |
| City Place Atrium | Building | 25 | Suffolk | 42 21 04 N | 071 03 59 W |
| Clapp Labs | Building | 73 | Hampshire | 42 15 24 N | 072 34 30 W |
| Clark Art Museum | Building | 212 | Berkshire | 42 42 27 N | 073 12 21 W |
| Clark Building | Building | 9 | Middlesex | 42 21 43 N | 071 06 02 W |
| Clark Hall | Building | 81 | Hampshire | 42 23 21 N | 072 31 25 W |
| Clark House | Building | 75 | Hampshire | 42 22 24 N | 072 30 48 W |
| Claver Hall | Building | 78 | Middlesex | 42 20 00 N | 071 10 34 W |
| Clement C Maxwell Library | Building | 35 | Plymouth | 41 59 16 N | 070 58 28 W |
| Cleveland Hall | Building | 69 | Hampshire | 42 15 28 N | 072 34 24 W |
| Clinton Area Chamber of Commerce | Building | 83 | Worcester | 42 24 35 N | 071 40 54 W |
| Clinton District Courthouse | Building | 144 | Worcester | 42 23 53 N | 071 41 10 W |
| Clinton Historical Society Building | Building | 113 | Worcester | 42 25 02 N | 071 41 00 W |
| Clinton Town Hall | Building | 112 | Worcester | 42 25 02 N | 071 40 57 W |
| Clough House | Building | 16 | Suffolk | 42 21 57 N | 071 03 17 W |
| Coast Guard Station | Building | 5 | Nantucket | 41 14 58 N | 070 58 24 W |
| Cobbs Tavern | Building | 50 | Norfolk | 42 08 18 N | 071 08 56 W |
| Coburns Gaming House | Building | 16 | Suffolk | 42 21 37 N | 071 03 59 W |
| Codman House | Building | 66 | Middlesex | 42 24 52 N | 071 19 45 W |
| Codman House Museum | Building | 65 | Middlesex | 42 25 03 N | 071 19 40 W |
| Coffin House | Building | 14 | Essex | 42 47 59 N | 070 51 46 W |
| Coffin House Museum | Building | 12 | Essex | 42 46 01 N | 070 50 47 W |
| Cohan Dormitory | Building | 77 | Hampshire | 42 22 25 N | 072 30 50 W |
| Cohasset Historical Society Building | Building | 6 | Norfolk | 42 14 13 N | 070 47 47 W |
| Cohen Arts Center | Building | 10 | Middlesex | 42 24 14 N | 071 07 04 W |
| Cole Science Center | Building | 81 | Hampshire | 42 19 31 N | 072 31 57 W |
| College Hall | Building | 56 | Hampshire | 42 19 04 N | 072 38 09 W |
| Collins Alumni Building | Building | 15 | Suffolk | 42 20 13 N | 071 06 01 W |
| Collins Building | Building | 5 | Suffolk | 42 20 13 N | 071 05 53 W |
| Colonel Ashley House | Building | 204 | Berkshire | 42 03 33 N | 073 21 21 W |
| Colonel John Thacher House | Building | 4 | Barnstable | 41 42 48 N | 070 14 07 W |
| Colonial Theatre | Building | 37 | Suffolk | 42 21 07 N | 071 03 52 W |
| Colpoys Library | Building | 14 | Suffolk | 42 16 39 N | 071 03 55 W |
| Columbus Place | Building | 5 | Suffolk | 42 20 14 N | 071 05 05 W |
| Community Art Center | Building | 7 | Middlesex | 42 22 08 N | 071 05 26 W |
| Compass Building | Building | 6 | Middlesex | 42 22 53 N | 071 07 06 W |
| Compton Gallery | Building | 3 | Middlesex | 42 21 34 N | 071 05 31 W |
| Compton Laboratories | Building | 12 | Middlesex | 42 21 37 N | 071 05 28 W |
| Computer Museum | Building | 10 | Suffolk | 42 21 10 N | 071 02 57 W |
| Conant Library | Building | 196 | Worcester | 42 02 40 N | 071 55 53 W |
| Concord Antiquarian Society | Building | 45 | Middlesex | 42 27 27 N | 071 21 30 W |
| Concord Free Public Library | Building | 44 | Middlesex | 42 27 32 N | 071 21 12 W |
| Concord Museum | Building | 42 | Middlesex | 42 27 28 N | 071 20 35 W |
| Concord Museum Library | Building | 42 | Middlesex | 42 27 28 N | 071 20 34 W |
| Concord Visitor Center | Building | 51 | Middlesex | 42 27 31 N | 071 20 43 W |
| Connecticut River Watershed Council Library | Building | 44 | Hampshire | 42 16 34 N | 072 39 24 W |
| Connecticut Valley Historical Museum | Building | 37 | Hampden | 42 06 16 N | 072 35 04 W |
| Connecticut Valley Historical Museum Library | Building | 34 | Hampden | 42 06 16 N | 072 35 11 W |
| Connolly Carriage House | Building | 50 | Middlesex | 42 19 25 N | 071 10 11 W |