Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Jonesville Elementary School | School | 18 | Catahoula | 31 37 38 N | 091 49 38 W |
| Jonesville Junior High School | School | 17 | Catahoula | 31 37 29 N | 091 49 20 W |
| Jonesville Lock and Dam | Dam | 5 | Catahoula | 31 28 58 N | 091 51 33 W |
| Jonesville Lock Landing Strip | Airport | 24 | Catahoula | 31 28 37 N | 091 51 58 W |
| Jonesville Oil Field | Oilfield | 19 | Catahoula | 31 38 13 N | 091 43 17 W |
| Jordan Bayou | Gut | 21 | Tensas | 32 09 11 N | 091 25 57 W |
| Jordan Branch | Stream | | St. Helena | 30 44 29 N | 090 42 51 W |
| Jordan Cemetery | Cemetery | 21 | Tensas | 32 08 32 N | 091 24 59 W |
| Jordan Creek | Stream | | Grant | 31 29 58 N | 092 31 50 W |
| Jordan Creek | Stream | | Morehouse | 32 44 05 N | 091 58 02 W |
| Jordan Ferry | Locale | 21 | Tensas | 32 08 43 N | 091 24 56 W |
| Jordan Hill | Populated Place | 43 | Winn | 31 51 15 N | 092 31 22 W |
| Jordan Hill | Summit | 46 | Winn | 31 51 39 N | 092 31 42 W |
| Jordan Hill Cemetery | Cemetery | 42 | Winn | 31 50 51 N | 092 31 15 W |
| Jordan Lake | Lake | 26 | Richland | 32 31 22 N | 091 42 34 W |
| Jordan Mountain | Summit | 142 | Bienville | 32 23 54 N | 092 55 34 W |
| Jordan Spur (historical) | Locale | 19 | Rapides | 30 59 53 N | 092 15 57 W |
| Jordan Temple Church | Church | 63 | Bossier | 32 27 05 N | 093 34 13 W |
| Jordan Terrace (subdivision) | Populated Place | 18 | East Baton Rouge | 30 31 43 N | 091 10 41 W |
| Jordan United Methodist Church | Church | 20 | East Baton Rouge | 30 31 06 N | 091 08 43 W |
| Jordon Ferry | Locale | 50 | Natchitoches | 31 53 14 N | 093 20 06 W |
| Jordon Ferry Bridge | Bridge | 29 | Natchitoches | 31 53 44 N | 093 20 36 W |
| Jordon Hill Cemetery | Cemetery | 39 | Winn | 31 50 51 N | 092 31 18 W |
| Joseph A Craig School | School | | Orleans | 29 57 55 N | 090 04 09 W |
| Joseph A Cuillier Senior Career Center | School | | Jefferson | 29 53 21 N | 090 06 49 W |
| Joseph Bayou | Gut | -5 | Plaquemines | 29 04 41 N | 089 16 03 W |
| Joseph Branch | Stream | | St. Helena | 30 48 18 N | 090 38 10 W |
| Joseph Branch Oil Field | Oilfield | 94 | St. Helena | 30 52 14 N | 090 43 25 W |
| Joseph Cemetery | Cemetery | 5 | Iberia | 29 54 31 N | 091 41 17 W |
| Joseph Gonsoulin Elementary School | School | 5 | Iberia | 29 55 24 N | 091 40 40 W |
| Joseph Grove School (historical) | School | 92 | Caddo | 32 14 09 N | 093 54 35 W |
| Joseph Harbor Bayou | Stream | | Cameron | 29 37 39 N | 092 45 41 W |
| Joseph Hardin Elementary School | School | 0 | Orleans | 29 58 19 N | 090 00 13 W |
| Joseph S Clark Senior High School | School | 1 | Orleans | 29 58 11 N | 090 04 14 W |
| Josey Cemetery | Cemetery | 98 | Caddo | 32 57 08 N | 094 02 31 W |
| Joshua Butler Elementary School | School | 0 | Jefferson | 29 54 30 N | 090 08 37 W |
| Jourda Canal | Canal | 0 | St. Bernard | 29 51 21 N | 089 48 02 W |
| Jowers Creek | Stream | | Natchitoches | 31 27 19 N | 092 53 02 W |
| Joyce | Populated Place | 39 | Winn | 31 56 22 N | 092 35 56 W |
| Joyce Chapel (historical) | Church | 28 | East Carroll | 32 46 26 N | 091 12 35 W |
| Joyce Oil Field | Oilfield | 55 | Winn | 32 00 05 N | 092 31 46 W |
| Joyce Post Office (historical) | Post Office | 43 | Winn | 31 56 28 N | 092 35 36 W |
| Joyce Wildlife Management Area | Park | 0 | Tangipahoa | 30 22 01 N | 090 22 57 W |
| Juanita | Populated Place | 35 | Beauregard | 30 37 07 N | 093 25 31 W |
| Juben Gravel Pit | Mine | 73 | Webster | 32 28 34 N | 093 15 52 W |
| Jubert Point | Cape | 0 | Cameron | 29 59 18 N | 093 16 11 W |
| Judas Branch | Stream | 54 | West Feliciana | 30 58 55 N | 091 29 15 W |
| Judd | Populated Place | 11 | Acadia | 30 21 47 N | 092 24 14 W |
| Judd Bayou | Stream | | Madison | 32 22 17 N | 091 20 39 W |
| Judd Lake | Lake | 20 | Madison | 32 22 15 N | 091 23 43 W |
| Judge Digby Gas Field | Oilfield | 7 | Pointe Coupee | 30 37 55 N | 091 30 40 W |
| Judice | Populated Place | 9 | Lafayette | 30 10 53 N | 092 08 30 W |
| Judice Gas Field | Oilfield | 7 | Lafayette | 30 11 03 N | 092 06 30 W |
| Judice High School | School | 9 | Lafayette | 30 10 03 N | 092 08 25 W |
| Judice Park | Park | 8 | Lafayette | 30 09 40 N | 092 09 09 W |
| Judice Volunteer Fire Department | Building | 9 | Lafayette | 30 10 21 N | 092 08 20 W |
| Judson Baptist Recreation Park | Park | 16 | East Baton Rouge | 30 29 24 N | 091 04 17 W |
| Judson Cemetery | Cemetery | 18 | Livingston | 30 32 17 N | 090 51 36 W |
| Judson Church | Church | 18 | Livingston | 30 32 20 N | 090 51 36 W |
| Judson Fundamental Elementary School | School | 64 | Caddo | 32 29 18 N | 093 47 58 W |
| Judy Creek | Stream | | Union | 32 59 23 N | 092 25 54 W |
| Judy Slough | Gut | 20 | Ouachita | 32 28 39 N | 092 08 50 W |
| Jug Bayou | Stream | | St. Tammany | 30 14 30 N | 089 37 47 W |
| Jug Lake | Lake | -3 | Terrebonne | 29 22 29 N | 090 56 44 W |
| Jules Cemetery | Cemetery | 21 | Evangeline | 30 37 60 N | 092 15 35 W |
| Jules Cutoff | Gut | 0 | St. Bernard | 29 51 41 N | 089 21 20 W |
| Julia (historical) | Populated Place | 36 | Washington | 30 43 06 N | 090 02 19 W |
| Julia B Maitland Elementary School | School | 1 | St. Mary | 29 42 43 N | 091 12 52 W |
| Julian Bayou | Stream | | St. Mary | 29 33 51 N | 091 28 51 W |
| Julian School (historical) | School | 1 | Jefferson | 29 53 02 N | 090 07 06 W |
| Julien | Populated Place | 3 | St. Mary | 29 51 27 N | 091 37 56 W |
| Julius B Nachman Elementary School | School | 25 | Rapides | 31 17 22 N | 092 29 04 W |
| Julius Rosenwald Accelerated School | School | 1 | Orleans | 29 55 06 N | 089 59 08 W |
| Jump Log Bayou | Gut | 24 | East Carroll | 32 43 56 N | 091 19 38 W |
| Jumping Bayou | Gut | 13 | Avoyelles | 31 18 57 N | 092 02 46 W |
| Jumping Bayou | Stream | | La Salle | 31 20 28 N | 092 02 56 W |
| Jumping Gully | Stream | | Beauregard | 30 46 24 N | 093 01 50 W |
| Jumping Gully Creek | Stream | | La Salle | 31 43 15 N | 092 12 38 W |
| Junction | Populated Place | 30 | Beauregard | 30 50 17 N | 093 30 33 W |
| Junction City | Populated Place | 58 | Union | 33 00 50 N | 092 43 31 W |
| Junction Ridge | Ridge | 13 | Ascension | 30 12 57 N | 090 46 56 W |
| Juneau Landing Strip | Airport | 7 | St. Martin | 30 22 27 N | 091 54 00 W |
| Jungle Gardens | Park | 32 | Iberia | 29 54 31 N | 091 54 42 W |
| Junior | Locale | 1 | Plaquemines | 29 36 10 N | 089 52 25 W |
| Junior Academy | School | 17 | East Baton Rouge | 30 29 18 N | 091 09 12 W |
| Junior Branch | Stream | | Natchitoches | 31 43 35 N | 093 13 21 W |
| Junior Deputy Camp | Locale | 25 | East Baton Rouge | 30 39 29 N | 091 00 03 W |
| Junior Revetment | Levee | 2 | Plaquemines | 29 36 22 N | 089 52 47 W |
| Junius Ridge | Ridge | 1 | Cameron | 29 49 23 N | 093 40 50 W |
| Jurdon Creek | Stream | | Vernon | 31 07 46 N | 093 21 53 W |
| Jurjevich Canal | Canal | 2 | Plaquemines | 29 21 10 N | 089 23 57 W |
| Justice Chapel | Church | 56 | Caddo | 32 48 09 N | 093 50 30 W |
| Justina | Populated Place | 20 | Tensas | 31 58 39 N | 091 25 46 W |
| Justina Gas Field | Oilfield | 29 | Tensas | 32 00 36 N | 091 22 28 W |
| Juvenile Alternative School | School | | Orleans | 29 57 36 N | 090 05 41 W |
| K C Ranch Landing Strip | Airport | 24 | Madison | 32 15 36 N | 091 06 03 W |
| K R Hanchey Elementary School | School | 66 | Beauregard | 30 51 18 N | 093 18 08 W |
| KACY-AM (Lafayette) | Tower | 15 | Lafayette | 30 16 52 N | 092 00 53 W |
| Kadesh | Populated Place | 43 | Grant | 31 42 16 N | 092 54 41 W |
| Kadesh Branch | Stream | | Grant | 31 42 27 N | 092 53 37 W |
| KADN-TV (Lafayette) | Tower | 9 | Acadia | 30 21 45 N | 092 12 53 W |
| KAGY-AM (Port Sulphur) | Tower | 0 | Plaquemines | 29 29 04 N | 089 42 15 W |
| KAHJ-FM (Lake Arthur) | Tower | 6 | Jefferson Davis | 30 10 02 N | 092 40 16 W |
| Kahns | Populated Place | 7 | West Baton Rouge | 30 28 56 N | 091 15 07 W |
| Kaho France School | School | -1 | Jefferson | 29 58 58 N | 090 11 56 W |
| KAJN-FM (Crowley) | Tower | 2 | Vermilion | 30 02 20 N | 092 22 15 W |
| KALB-AM (Alexandria) | Tower | 27 | Rapides | 31 18 26 N | 092 25 00 W |
| KALB-TV (Alexandria) | Tower | 50 | Rapides | 31 02 16 N | 092 29 45 W |
| Kale Branch | Stream | | St. Helena | 30 42 44 N | 090 42 05 W |
| Kale Slough | Stream | | St. Tammany | 30 19 28 N | 089 41 14 W |