Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Jeters Pond | Reservoir | 149 | Union | 34 34 07 N | 081 29 53 W |
| Jeters Pond Dam D-2157 | Dam | 149 | Union | 34 34 07 N | 081 29 53 W |
| Joens Ford | Crossing | 112 | Union | 34 34 26 N | 081 47 19 W |
| Johns Creek | Stream | | Union | 34 34 15 N | 081 46 31 W |
| Johns Creek Bridge | Bridge | 116 | Union | 34 34 43 N | 081 46 27 W |
| Johnson Cemetery | Cemetery | 184 | Union | 34 50 58 N | 081 37 27 W |
| Johnson School (historical) | School | 127 | Union | 34 46 19 N | 081 30 13 W |
| Johnsons Creek | Stream | | Union | 34 33 00 N | 081 33 33 W |
| Jones Bridge | Bridge | 112 | Union | 34 34 26 N | 081 47 19 W |
| Jones Ferry (historical) | Crossing | 102 | Union | 34 32 52 N | 081 39 32 W |
| Jonesville | Populated Place | 209 | Union | 34 50 09 N | 081 40 51 W |
| Jonesville Baptist Church | Church | 213 | Union | 34 50 13 N | 081 41 08 W |
| Jonesville Elementary School | School | 208 | Union | 34 50 15 N | 081 40 40 W |
| Jonesville High School | School | 210 | Union | 34 50 15 N | 081 40 55 W |
| Jonesville Town Pond | Reservoir | 158 | Union | 34 51 24 N | 081 40 47 W |
| Jonesville Town Pond Dam D-2161 | Dam | 158 | Union | 34 51 24 N | 081 40 47 W |
| Judas Branch | Stream | | Union | 34 33 56 N | 081 44 36 W |
| Jumping Run Creek | Stream | | Union | 34 52 59 N | 081 40 41 W |
| Kelly | Populated Place | 214 | Union | 34 48 44 N | 081 35 49 W |
| Kelly Cemetery | Cemetery | 179 | Union | 34 50 12 N | 081 36 15 W |
| Kelly Chapel (historical) | Church | 146 | Union | 34 33 56 N | 081 26 53 W |
| Kelly Lookout Tower | Tower | 225 | Union | 34 48 45 N | 081 37 20 W |
| Kelly Pinckney High School | School | 219 | Union | 34 48 46 N | 081 35 19 W |
| Kelly School (historical) | School | 192 | Union | 34 45 59 N | 081 37 26 W |
| Kellys Cemetery | Cemetery | 148 | Union | 34 33 55 N | 081 26 52 W |
| Kelton | Populated Place | 216 | Union | 34 50 00 N | 081 34 46 W |
| Kennedy Mill | Populated Place | 162 | Union | 34 51 13 N | 081 46 04 W |
| Kennedys Ford | Crossing | 95 | Union | 34 30 44 N | 081 36 26 W |
| Knott Hill School (historical) | School | 202 | Union | 34 48 21 N | 081 46 51 W |
| Knox Creek | Stream | | Union | 34 46 32 N | 081 36 33 W |
| Lake John D Long | Reservoir | 125 | Union | 34 46 24 N | 081 30 23 W |
| Lake John D Long Dam D-2162 | Dam | 125 | Union | 34 46 24 N | 081 30 23 W |
| Lawson Cemetery | Cemetery | 163 | Union | 34 41 26 N | 081 46 07 W |
| Lee Cemetery | Cemetery | 150 | Union | 34 32 06 N | 081 36 39 W |
| Linams Mills (historical) | Locale | 92 | Union | 34 31 25 N | 081 31 47 W |
| Lindsey School (historical) | School | 189 | Union | 34 53 27 N | 081 40 40 W |
| Little Browns Creek | Stream | | Union | 34 43 57 N | 081 30 40 W |
| Littlejohn Cemetery | Cemetery | 211 | Union | 34 51 25 N | 081 42 35 W |
| Lockhart | Populated Place | 138 | Union | 34 47 11 N | 081 27 43 W |
| Lockhart Chapel | Church | 138 | Union | 34 46 24 N | 081 28 26 W |
| Lockhart Dam | Dam | 119 | Union | 34 47 54 N | 081 27 35 W |
| Lockhart Elementary School | School | 161 | Union | 34 47 45 N | 081 28 05 W |
| Lockhart High School | School | 160 | Union | 34 47 45 N | 081 28 03 W |
| Lockhart Junction | Populated Place | 203 | Union | 34 49 08 N | 081 39 07 W |
| Lockhart Lower Shoals | Bar | 101 | Union | 34 45 53 N | 081 27 12 W |
| Lockhart Reservoir | Reservoir | 119 | Union | 34 47 54 N | 081 27 35 W |
| Lockharts Canala | Canal | 119 | Union | 34 47 20 N | 081 27 30 W |
| Lockharts Upper Shoals | Bar | 120 | Union | 34 47 54 N | 081 27 40 W |
| Longs Chapel | Church | 202 | Union | 34 49 07 N | 081 40 14 W |
| Lower Fairforest Cemetery | Cemetery | 176 | Union | 34 40 59 N | 081 43 35 W |
| Lower Fairforest Church | Church | 178 | Union | 34 41 01 N | 081 43 35 W |
| Macbeth Church (historical) | Church | 165 | Union | 34 39 53 N | 081 41 21 W |
| Macedonia Cemetery | Cemetery | 179 | Union | 34 36 32 N | 081 47 01 W |
| Macedonia Church | Church | 188 | Union | 34 38 12 N | 081 47 12 W |
| Macedonia Church (historical) | Church | 176 | Union | 34 36 30 N | 081 47 00 W |
| Macedonia School (historical) | School | 158 | Union | 34 34 57 N | 081 47 06 W |
| Main Street Grammar School (historical) | School | 194 | Union | 34 42 57 N | 081 37 11 W |
| Maple Pond | Lake | 146 | Union | 34 48 58 N | 081 45 28 W |
| Maple Ridge Church | Church | 188 | Union | 34 42 26 N | 081 33 33 W |
| Maple Ridge School (historical) | School | 190 | Union | 34 42 23 N | 081 33 28 W |
| Mayhew Cemetery | Cemetery | 171 | Union | 34 46 15 N | 081 45 21 W |
| McBeth Grammar School (historical) | School | 188 | Union | 34 42 25 N | 081 37 03 W |
| McBride Cemetery | Cemetery | 130 | Union | 34 43 44 N | 081 33 34 W |
| McClure Creek | Stream | | Union | 34 48 06 N | 081 44 36 W |
| McCutchen Memorial Presbyterian Church | Church | 185 | Union | 34 43 00 N | 081 35 58 W |
| McDaniel Cemetery | Cemetery | 160 | Union | 34 34 33 N | 081 37 21 W |
| McDaniels Pond | Reservoir | 122 | Union | 34 39 00 N | 081 26 53 W |
| McDaniels Pond Dam Number Two | Dam | 122 | Union | 34 39 00 N | 081 26 53 W |
| McGowan School (historical) | School | 188 | Union | 34 51 23 N | 081 33 45 W |
| McKissick Cemetery | Cemetery | 189 | Union | 34 50 57 N | 081 33 05 W |
| Meador (historical) | Populated Place | 125 | Union | 34 41 07 N | 081 30 28 W |
| Meador School (historical) | School | 160 | Union | 34 42 09 N | 081 29 57 W |
| Meadow Woods | Area | 166 | Union | 34 41 41 N | 081 46 39 W |
| Mean Crossroads | Populated Place | 172 | Union | 34 48 29 N | 081 43 55 W |
| Meansville (historical) | Populated Place | 172 | Union | 34 48 27 N | 081 45 16 W |
| Meng Creek | Stream | | Union | 34 43 55 N | 081 33 16 W |
| Mill Creek | Stream | | Union | 34 52 30 N | 081 38 41 W |
| Minter Bridge (historical) | Bridge | 111 | Union | 34 38 28 N | 081 41 32 W |
| Mitchell Cemetery | Cemetery | 205 | Union | 34 51 38 N | 081 41 44 W |
| Mitchell Chapel | Church | 200 | Union | 34 45 36 N | 081 37 10 W |
| Mitchell Creek | Stream | | Union | 34 43 34 N | 081 42 52 W |
| Mon Aetna Baptist Church | Church | 188 | Union | 34 43 01 N | 081 36 01 W |
| Monarch | Populated Place | 191 | Union | 34 43 06 N | 081 35 47 W |
| Monarch Elementary School | School | 192 | Union | 34 43 03 N | 081 35 47 W |
| Morningside Baptist Church | Church | 187 | Union | 34 43 24 N | 081 35 38 W |
| Morres Lake | Reservoir | 151 | Union | 34 41 18 N | 081 34 29 W |
| Morris Branch | Stream | | Union | 34 37 32 N | 081 37 46 W |
| Mount Calvary Church | Church | 190 | Union | 34 38 13 N | 081 47 16 W |
| Mount Calvary School (historical) | School | 186 | Union | 34 38 17 N | 081 47 15 W |
| Mount Joy Cemetery | Cemetery | 220 | Union | 34 50 03 N | 081 34 49 W |
| Mount Joy Church | Church | 216 | Union | 34 50 01 N | 081 34 50 W |
| Mount Joy School (historical) | School | 190 | Union | 34 50 20 N | 081 32 04 W |
| Mount Lebanon Cemetery | Cemetery | 205 | Union | 34 43 29 N | 081 47 52 W |
| Mount Lebanon Church | Church | 205 | Union | 34 43 28 N | 081 47 50 W |
| Mount Olive Church | Church | 137 | Union | 34 40 33 N | 081 27 50 W |
| Mount Rouell Church | Church | 190 | Union | 34 47 52 N | 081 31 03 W |
| Mount Rouell School (historical) | School | 197 | Union | 34 47 54 N | 081 31 49 W |
| Mount Tabor Cemetery | Cemetery | 171 | Union | 34 48 12 N | 081 30 06 W |
| Mount Tabor Church | Church | 172 | Union | 34 48 16 N | 081 30 06 W |
| Mount Vernon Church | Church | 159 | Union | 34 38 32 N | 081 36 59 W |
| Mud Bridge | Bridge | 127 | Union | 34 43 42 N | 081 42 47 W |
| Murphy Bridge | Bridge | 120 | Union | 34 40 54 N | 081 41 10 W |
| Murphy-Duncan Cemetery | Cemetery | 159 | Union | 34 39 32 N | 081 44 29 W |
| Murphys Mill (historical) | Locale | 114 | Union | 34 39 56 N | 081 44 23 W |
| Neal Shoals | Populated Place | 106 | Union | 34 39 53 N | 081 26 59 W |
| Neal Shoals Dam | Dam | 99 | Union | 34 39 54 N | 081 26 53 W |
| Neal Shoals Reservoir | Reservoir | 99 | Union | 34 39 54 N | 081 26 53 W |
| Neals Creek | Stream | | Union | 34 39 31 N | 081 26 44 W |
| New Chapel | Church | 189 | Union | 34 41 36 N | 081 37 22 W |
| New Chapel Church (historical) | Church | 162 | Union | 34 37 44 N | 081 39 41 W |