Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Ronkonkoma Station | Locale | | Suffolk | 40 48 28 N | 073 06 36 W |
| New Village Church | Church | 32 | Suffolk | 40 51 34 N | 073 06 35 W |
| John Pearl Elementary School | School | | Suffolk | 40 46 06 N | 073 06 35 W |
| Strongs Neck | Cape | 12 | Suffolk | 40 57 38 N | 073 06 32 W |
| Bohemia Post Office | Post Office | | Suffolk | 40 46 13 N | 073 06 31 W |
| Nassakeag Elementary School | School | 34 | Suffolk | 40 54 45 N | 073 06 30 W |
| Monastery of the Holy Cross | Church | | Suffolk | 40 56 35 N | 073 06 30 W |
| Stony Brook Station | Locale | 27 | Suffolk | 40 56 10 N | 073 06 28 W |
| Holy Cross Lutheran Church | Church | | Suffolk | 40 49 14 N | 073 06 28 W |
| Old Field Beach | Beach | 0 | Suffolk | 40 58 13 N | 073 06 22 W |
| East Setauket | Populated Place | 20 | Suffolk | 40 56 29 N | 073 06 21 W |
| South Setauket | Populated Place | 40 | Suffolk | 40 54 49 N | 073 06 20 W |
| Gatelot Avenue School | School | 39 | Suffolk | 40 49 58 N | 073 06 16 W |
| Wood Road School | School | 30 | Suffolk | 40 51 36 N | 073 06 16 W |
| Green Point | Cape | 0 | Suffolk | 40 43 06 N | 073 06 14 W |
| Messiah Lutheran Church | Church | | Suffolk | 40 54 44 N | 073 06 14 W |
| Great South Bay | Bay | 6 | Suffolk | 40 41 25 N | 073 06 05 W |
| Sachem High School | School | 45 | Suffolk | 40 50 01 N | 073 06 02 W |
| Setauket Harbor | Bay | 0 | Suffolk | 40 57 06 N | 073 06 01 W |
| Hard Estate-West Sayville County Park | Park | 1 | Suffolk | 40 43 26 N | 073 06 00 W |
| WSHR-FM (Lake Ronkonkoma) | Tower | 48 | Suffolk | 40 50 00 N | 073 05 59 W |
| Long Island MacArthur Airport | Airport | 25 | Suffolk | 40 47 42 N | 073 05 58 W |
| Centereach | Populated Place | 30 | Suffolk | 40 51 30 N | 073 05 58 W |
| Island Hills Country Club | Locale | | Suffolk | 40 45 16 N | 073 05 57 W |
| West Sayville | Populated Place | 4 | Suffolk | 40 43 40 N | 073 05 51 W |
| Oxhead Road School | School | 34 | Suffolk | 40 52 08 N | 073 05 46 W |
| Suffolk County Marine Museum West | Building | | Suffolk | 40 43 42 N | 073 05 43 W |
| Indian Creek | Stream | | Suffolk | 40 43 15 N | 073 05 42 W |
| Cherry Avenue Elementary School | School | 8 | Suffolk | 40 44 20 N | 073 05 41 W |
| Sayville High School | School | 6 | Suffolk | 40 44 06 N | 073 05 38 W |
| Hiawatha School | School | 38 | Suffolk | 40 49 14 N | 073 05 37 W |
| Saint Lawrence Cemetery | Cemetery | 12 | Suffolk | 40 45 16 N | 073 05 35 W |
| Cenacle Convent | Church | 50 | Suffolk | 40 50 08 N | 073 05 27 W |
| Mooney Pond | Lake | 47 | Suffolk | 40 50 04 N | 073 05 25 W |
| Dawnwood Middle School | School | 31 | Suffolk | 40 52 27 N | 073 05 23 W |
| Green Creek | Stream | | Suffolk | 40 43 17 N | 073 05 22 W |
| Cherry Grove | Populated Place | 4 | Suffolk | 40 39 32 N | 073 05 20 W |
| Jayne Sherwood House | Building | 26 | Suffolk | 40 56 22 N | 073 05 19 W |
| Port Jefferson Harbor | Bay | -3 | Suffolk | 40 57 44 N | 073 05 16 W |
| Bridgeport Ferry | Crossing | -3 | Suffolk | 40 57 54 N | 073 05 11 W |
| Sayville Station | Locale | | Suffolk | 40 44 24 N | 073 05 11 W |
| Holbrook Road School | School | 40 | Suffolk | 40 50 43 N | 073 05 05 W |
| Mount Misery Shoal | Bar | -3 | Suffolk | 40 59 03 N | 073 05 04 W |
| Interchange 61 | Crossing | 36 | Suffolk | 40 48 56 N | 073 05 03 W |
| Our Savior Church | Church | 29 | Suffolk | 40 51 52 N | 073 05 03 W |
| Centereach Post Office | Post Office | | Suffolk | 40 51 32 N | 073 05 03 W |
| Poquott | Populated Place | 20 | Suffolk | 40 57 03 N | 073 05 02 W |
| Lincoln Avenue Elementary School | School | | Suffolk | 40 45 09 N | 073 05 02 W |
| Unity Drive School | School | 29 | Suffolk | 40 51 58 N | 073 04 57 W |
| Sayville | Populated Place | 6 | Suffolk | 40 44 09 N | 073 04 55 W |
| Union Avenue School | School | 36 | Suffolk | 40 48 45 N | 073 04 55 W |
| Saint John's Lutheran Church | Church | | Suffolk | 40 48 35 N | 073 04 53 W |
| McAllister County Park | Park | | Suffolk | 40 58 15 N | 073 04 51 W |
| Nokomis School | School | 40 | Suffolk | 40 49 22 N | 073 04 46 W |
| Mount Misery Point | Cape | 0 | Suffolk | 40 58 23 N | 073 04 46 W |
| Holbrook | Populated Place | 36 | Suffolk | 40 48 44 N | 073 04 42 W |
| Cherry Grove Ferry | Crossing | | Suffolk | 40 41 38 N | 073 04 39 W |
| Saint Ann's Cemetery | Cemetery | | Suffolk | 40 44 14 N | 073 04 39 W |
| Union Cemetery | Cemetery | 5 | Suffolk | 40 44 21 N | 073 04 37 W |
| Grundy Avenue School | School | 24 | Suffolk | 40 47 13 N | 073 04 35 W |
| Saint Ann's Episcopal Church | Church | 4 | Suffolk | 40 44 10 N | 073 04 32 W |
| Mill Pond | Reservoir | 3 | Suffolk | 40 44 34 N | 073 04 31 W |
| Centereach Church | Church | 36 | Suffolk | 40 51 04 N | 073 04 27 W |
| Sunrise Drive Elementary School | School | | Suffolk | 40 45 33 N | 073 04 25 W |
| Roosevelt Estate County Park | Park | | Suffolk | 40 44 18 N | 073 04 17 W |
| Arrowhead Elementary School | School | 49 | Suffolk | 40 54 33 N | 073 04 16 W |
| Port Jefferson Village Hall | Building | | Suffolk | 40 56 45 N | 073 04 15 W |
| Earl L Vandermeulen High School | School | | Suffolk | 40 56 24 N | 073 04 14 W |
| Brown Creek | Stream | | Suffolk | 40 43 22 N | 073 04 09 W |
| Port Jefferson | Populated Place | 1 | Suffolk | 40 56 47 N | 073 04 09 W |
| Christ Episcopal Church | Church | | Suffolk | 40 56 34 N | 073 04 09 W |
| Norwood Avenue Elementary School | School | 52 | Suffolk | 40 54 58 N | 073 04 08 W |
| Brown Point | Cape | 0 | Suffolk | 40 43 26 N | 073 04 07 W |
| Fire Island Pines | Populated Place | 1 | Suffolk | 40 39 55 N | 073 04 05 W |
| Belle Terre | Populated Place | 49 | Suffolk | 40 57 35 N | 073 04 04 W |
| Heatherwood Golf Club | Locale | | Suffolk | 40 54 09 N | 073 04 04 W |
| Centereach Bible Church | Church | | Suffolk | 40 52 38 N | 073 04 03 W |
| Hatch Rock | Bar | 0 | Suffolk | 40 58 12 N | 073 04 02 W |
| First Presbyterian Church | Church | | Suffolk | 40 56 41 N | 073 04 02 W |
| Lotus Lake | Reservoir | 2 | Suffolk | 40 44 38 N | 073 04 00 W |
| First Baptist Church | Church | | Suffolk | 40 56 45 N | 073 04 00 W |
| First United Methodist Church | Church | | Suffolk | 40 56 37 N | 073 04 00 W |
| Port Jefferson Free Library | Building | | Suffolk | 40 56 48 N | 073 04 00 W |
| Fire Island Pines Ferry | Crossing | | Suffolk | 40 41 52 N | 073 03 59 W |
| Long Island | Island | 29 | Suffolk | 40 49 00 N | 073 03 58 W |
| White Beach | Beach | 0 | Suffolk | 40 58 08 N | 073 03 58 W |
| North Coleman Road School | School | 28 | Suffolk | 40 52 39 N | 073 03 57 W |
| Terryville | Populated Place | 46 | Suffolk | 40 54 32 N | 073 03 54 W |
| Jefferson School | School | | Suffolk | 40 56 38 N | 073 03 53 W |
| Cedar Hill Cemetery | Cemetery | 71 | Suffolk | 40 56 11 N | 073 03 50 W |
| Infant Jesus Roman Catholic Church | Church | | Suffolk | 40 56 27 N | 073 03 50 W |
| Christ United Methodist Church | Church | | Suffolk | 40 54 30 N | 073 03 49 W |
| Mount Misery | Summit | 54 | Suffolk | 40 57 36 N | 073 03 46 W |
| Belle Terre Village Hall | Building | | Suffolk | 40 57 27 N | 073 03 40 W |
| Saint Charles Hospital and Rehabilitation Center | Hospital | 68 | Suffolk | 40 56 45 N | 073 03 39 W |
| Sans Souci Lakes | Lake | 3 | Suffolk | 40 45 07 N | 073 03 38 W |
| Newfield High School | School | 30 | Suffolk | 40 52 20 N | 073 03 38 W |
| Saint Charles Hospital Heliport | Airport | 66 | Suffolk | 40 56 47 N | 073 03 37 W |
| Academy Street Elementary School | School | 5 | Suffolk | 40 44 25 N | 073 03 34 W |
| Maryhaven Center of Hope | School | 68 | Suffolk | 40 56 39 N | 073 03 33 W |
| Suffolk County Community College Selden Campus | School | | Suffolk | 40 50 56 N | 073 03 33 W |
| Camp Edey | Locale | 9 | Suffolk | 40 45 23 N | 073 03 31 W |
| Bayport Commons Park | Park | | Suffolk | 40 44 19 N | 073 03 30 W |
| Sagamore Junior High School | School | 41 | Suffolk | 40 49 37 N | 073 03 25 W |
| Moneyhollow Rock | Bar | -3 | Suffolk | 40 58 01 N | 073 03 23 W |
| Bayport United Methodist Church | Church | | Suffolk | 40 44 11 N | 073 03 21 W |
| Assembly of God Church | Church | | Suffolk | 40 56 12 N | 073 03 20 W |
| Interchange 62 | Crossing | | Suffolk | 40 49 12 N | 073 03 17 W |
| Bayport - Blue Point High School | School | 6 | Suffolk | 40 44 31 N | 073 03 17 W |
| Fire Island National Seashore | Park | 2 | Suffolk | 40 40 07 N | 073 03 16 W |