Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| First Church of Christ Scientist | Church | 251 | Grafton | 44 18 31 N | 071 46 53 W |
| First Church of Christ Scientist | Church | 218 | Hillsborough | 42 52 43 N | 071 56 52 W |
| First Church of Christ Scientist | Church | 73 | Hillsborough | 42 59 57 N | 071 27 46 W |
| First Church of Christ Scientist | Church | 55 | Hillsborough | 42 46 04 N | 071 28 02 W |
| First Church of Christ Scientist | Church | 53 | Hillsborough | 42 46 50 N | 071 27 58 W |
| First Church of Christ Scientist | Church | 86 | Merrimack | 43 12 20 N | 071 32 19 W |
| First Church of Christ Scientist | Church | 6 | Rockingham | 43 04 08 N | 070 45 28 W |
| First Church of Christ Scientist | Church | 80 | Rockingham | 42 53 02 N | 071 19 18 W |
| First Church of Nashua | Church | 50 | Hillsborough | 42 45 56 N | 071 28 02 W |
| First Church of the Nazarene | Church | 86 | Merrimack | 43 10 57 N | 071 32 06 W |
| First Congregational Church | Church | 171 | Belknap | 43 27 17 N | 071 13 18 W |
| First Congregational Church | Church | 177 | Carroll | 43 34 49 N | 071 12 01 W |
| First Congregational Church | Church | 151 | Cheshire | 42 52 06 N | 072 16 58 W |
| First Congregational Church | Church | 91 | Cheshire | 42 47 09 N | 072 29 24 W |
| First Congregational Church | Church | 347 | Cheshire | 42 49 46 N | 072 03 18 W |
| First Congregational Church | Church | 239 | Coos | 44 23 22 N | 071 10 47 W |
| First Congregational Church | Church | 177 | Grafton | 43 38 28 N | 072 15 06 W |
| First Congregational Church | Church | 196 | Grafton | 44 02 06 N | 072 03 42 W |
| First Congregational Church | Church | 63 | Hillsborough | 42 52 03 N | 071 29 41 W |
| First Congregational Church | Church | 50 | Hillsborough | 42 45 56 N | 071 28 02 W |
| First Congregational Church | Church | 46 | Hillsborough | 42 44 04 N | 071 19 20 W |
| First Congregational Church | Church | 82 | Hillsborough | 42 50 02 N | 071 39 04 W |
| First Congregational Church | Church | 153 | Merrimack | 43 11 29 N | 071 40 26 W |
| First Congregational Church | Church | 84 | Merrimack | 43 12 26 N | 071 32 11 W |
| First Congregational Church | Church | 240 | Merrimack | 43 06 11 N | 071 37 03 W |
| First Congregational Church | Church | 12 | Rockingham | 42 58 49 N | 070 56 48 W |
| First Congregational Church | Church | 12 | Rockingham | 42 56 14 N | 070 50 02 W |
| First Congregational Church | Church | 62 | Strafford | 43 12 57 N | 071 00 27 W |
| First Congregational Church | Church | 69 | Strafford | 43 18 08 N | 070 58 30 W |
| First Congregational Church of Salem | Church | 37 | Rockingham | 42 47 09 N | 071 12 10 W |
| First Connecticut Lake | Reservoir | 499 | Coos | 45 05 18 N | 071 17 16 W |
| First Connecticut Lake Dam | Dam | 499 | Coos | 45 05 18 N | 071 17 16 W |
| First Connecticut River Bridge | Bridge | 87 | Cheshire | 43 08 03 N | 072 26 27 W |
| First Free Will Baptist Church | Church | 148 | Belknap | 43 31 28 N | 071 28 14 W |
| First Free Will Baptist Church | Church | 160 | Grafton | 43 41 35 N | 071 37 58 W |
| First Freewill Baptist Church | Church | 260 | Belknap | 43 31 08 N | 071 12 00 W |
| First Meeting House | Church | 328 | Hillsborough | 43 08 57 N | 071 56 04 W |
| First Mountain | Summit | 512 | Coos | 44 25 24 N | 071 05 21 W |
| First Parish Church | Church | 128 | Rockingham | 42 53 38 N | 071 17 41 W |
| First Parish Congregational Church | Church | 18 | Strafford | 43 11 34 N | 070 52 31 W |
| First Parish United Church | Church | 72 | Strafford | 43 15 44 N | 070 53 46 W |
| First Presbyterian Church | Church | 45 | Hillsborough | 42 58 58 N | 071 28 17 W |
| First Unitarian Church | Church | 252 | Hillsborough | 42 59 14 N | 071 48 44 W |
| First Unitarian Congregational Society | Church | 218 | Hillsborough | 42 49 49 N | 071 46 33 W |
| First United Methodist Church | Church | 93 | Hillsborough | 42 58 52 N | 071 26 20 W |
| First United Methodist Church | Church | 70 | Strafford | 43 18 14 N | 070 58 28 W |
| First Universalist Church | Church | 42 | Rockingham | 42 56 14 N | 071 03 19 W |
| Fish Cove | Bay | 153 | Belknap | 43 38 30 N | 071 26 06 W |
| Fish Island | Island | 154 | Belknap | 43 36 39 N | 071 22 00 W |
| Fish Ladder Park | Park | 13 | Strafford | 43 11 45 N | 070 52 25 W |
| Fish Market | Locale | 316 | Grafton | 43 34 52 N | 072 06 16 W |
| Fish Pond | Lake | 424 | Coos | 44 51 27 N | 071 28 50 W |
| Fisher Brook | Stream | | Cheshire | 43 04 08 N | 072 06 06 W |
| Fisher Mountain | Summit | 718 | Grafton | 43 56 13 N | 071 35 20 W |
| Fishermans Cove | Bay | 154 | Carroll | 43 33 55 N | 071 11 50 W |
| Fishers Bay | Bay | 333 | Sullivan | 43 22 03 N | 072 04 08 W |
| Fishin Jimmy Trail | Trail | 832 | Grafton | 44 08 19 N | 071 42 53 W |
| Fisk Hill | Summit | 374 | Hillsborough | 42 48 38 N | 071 49 01 W |
| Fisk School | School | 170 | Belknap | 43 35 21 N | 071 41 32 W |
| Fiske Free Library | Building | 170 | Sullivan | 43 22 18 N | 072 20 16 W |
| Fitch Mountain | Summit | 1038 | Coos | 44 45 46 N | 071 27 19 W |
| Fitch Reservoir | Reservoir | 317 | Sullivan | 43 24 00 N | 072 18 46 W |
| Fitch Reservoir | Reservoir | 306 | Sullivan | 43 23 57 N | 072 18 47 W |
| Fitch Reservoir Dam | Dam | 317 | Sullivan | 43 24 00 N | 072 18 46 W |
| Fitchburg Boy Scout Camp (historical) | Locale | 336 | Cheshire | 42 46 57 N | 072 03 33 W |
| Fitzwilliam | Populated Place | 349 | Cheshire | 42 46 50 N | 072 08 30 W |
| Fitzwilliam Depot | Populated Place | 322 | Cheshire | 42 45 53 N | 072 09 03 W |
| Five Corners | Populated Place | 411 | Grafton | 44 14 39 N | 071 38 01 W |
| Five Corners | Populated Place | 20 | Rockingham | 42 56 19 N | 070 55 29 W |
| Five Finger Point | Cape | 182 | Carroll | 43 46 15 N | 071 31 28 W |
| Fivemile Island | Island | 158 | Carroll | 43 39 31 N | 071 23 16 W |
| Flag Pond | Lake | 255 | Grafton | 44 17 58 N | 071 54 02 W |
| Flaghole Pond | Reservoir | 155 | Merrimack | 43 17 00 N | 071 38 04 W |
| Flaghole Pond Dam | Dam | 155 | Merrimack | 43 17 00 N | 071 38 04 W |
| Flanders Brook | Stream | | Carroll | 43 47 19 N | 071 01 22 W |
| Flat Meadow Brook | Stream | | Merrimack | 43 13 19 N | 071 15 22 W |
| Flat Mountain | Ridge | 978 | Grafton | 43 55 36 N | 071 28 02 W |
| Flat Mountain | Summit | 888 | Carroll | 43 54 16 N | 071 26 39 W |
| Flat Mountain Pond Trail | Trail | 553 | Carroll | 43 53 56 N | 071 27 51 W |
| Flat Mountain Ponds | Lake | 713 | Grafton | 43 55 01 N | 071 26 58 W |
| Flat Pond Shelter | Locale | 713 | Grafton | 43 54 38 N | 071 27 22 W |
| Flat Top Mountain | Summit | 983 | Grafton | 44 12 10 N | 071 36 20 W |
| Flatrock Bridge | Bridge | 66 | Strafford | 43 20 35 N | 070 58 00 W |
| Flatrock Brook | Stream | | Rockingham | 42 48 53 N | 071 14 26 W |
| Flatrock Hill | Summit | 284 | Sullivan | 43 21 33 N | 072 19 51 W |
| Fletcher Cascades | Falls | 632 | Grafton | 43 55 50 N | 071 29 16 W |
| Fletcher Hill | Summit | 596 | Cheshire | 43 00 45 N | 072 06 29 W |
| Fletcher Hill | Summit | 56 | Strafford | 43 13 20 N | 070 52 01 W |
| Fletcher Island | Island | 77 | Hillsborough | 42 58 45 N | 071 23 15 W |
| Fletcher Mountain | Ridge | 627 | Grafton | 43 45 18 N | 071 49 42 W |
| Fletcher Pond | Lake | 503 | Sullivan | 43 12 31 N | 072 06 49 W |
| Fletcher Reservoir | Reservoir | 211 | Grafton | 43 43 10 N | 072 14 56 W |
| Flint Hill | Summit | 439 | Grafton | 43 48 40 N | 072 06 11 W |
| Flint Hill | Summit | 120 | Rockingham | 43 03 04 N | 071 09 40 W |
| Flints Brook | Stream | | Hillsborough | 42 43 17 N | 071 33 09 W |
| Flints Hill | Summit | 114 | Hillsborough | 42 44 11 N | 071 33 43 W |
| Flints Pond | Lake | 59 | Hillsborough | 42 44 57 N | 071 32 58 W |
| Flo Island | Island | 163 | Carroll | 43 35 42 N | 071 10 06 W |
| Floral Park Cemetery | Cemetery | 152 | Merrimack | 43 18 23 N | 071 19 28 W |
| Floral Park Cemetery | Cemetery | 153 | Merrimack | 43 18 36 N | 071 19 19 W |
| Florence Rideout Elementary School | School | 120 | Hillsborough | 42 50 41 N | 071 44 03 W |
| Floyd Elementary School | School | 77 | Rockingham | 42 52 26 N | 071 19 38 W |
| Flume Bridge | Bridge | 399 | Grafton | 44 05 58 N | 071 40 38 W |
| Flume Brook | Stream | | Coos | 44 51 17 N | 071 16 56 W |
| Flume Brook | Stream | | Grafton | 44 06 00 N | 071 40 32 W |
| Flume Brook | Stream | | Grafton | 43 59 05 N | 071 29 52 W |
| Flume Cascade | Stream | | Carroll | 44 12 27 N | 071 24 17 W |
| Flume Peak | Summit | 895 | Grafton | 43 59 09 N | 071 28 47 W |
| Flying H Skyport | Airport | 182 | Carroll | 43 41 12 N | 071 17 19 W |
| Fogg Brook | Stream | | Coos | 44 31 58 N | 071 17 26 W |