Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| First Christian Church | Church | 6 | Acadia | 30 13 13 N | 092 23 12 W |
| First Christian Church | Church | 52 | Bossier | 32 31 57 N | 093 43 09 W |
| First Christian Church | Church | 4 | Calcasieu | 30 12 26 N | 093 11 54 W |
| First Christian Church | Church | 108 | De Soto | 32 02 02 N | 093 42 46 W |
| First Christian Church | Church | 13 | East Baton Rouge | 30 25 49 N | 091 05 55 W |
| First Christian Church | Church | 0 | Jefferson | 29 58 48 N | 090 13 33 W |
| First Christian Church | Church | 24 | Ouachita | 32 29 56 N | 092 06 54 W |
| First Christian Church | Church | 81 | Vernon | 31 08 46 N | 093 15 46 W |
| First Church | Church | 90 | Tangipahoa | 30 56 05 N | 090 28 34 W |
| First Church | Church | 39 | Washington | 30 54 00 N | 089 50 02 W |
| First Church of Christ | Church | 4 | Calcasieu | 30 12 19 N | 093 12 57 W |
| First Church of Christ | Church | 5 | Jefferson Davis | 30 13 53 N | 092 38 48 W |
| First Church of Christ Scientist | Church | 63 | Caddo | 32 28 49 N | 093 44 01 W |
| First Church of Christ Scientist | Church | 4 | Calcasieu | 30 13 34 N | 093 12 43 W |
| First Church of Christ Scientist | Church | 16 | East Baton Rouge | 30 26 34 N | 091 10 07 W |
| First Church of Christ Scientist | Church | 10 | Lafayette | 30 12 23 N | 092 02 16 W |
| First Church of Christ Scientist | Church | 1 | Orleans | 29 55 40 N | 090 07 03 W |
| First Church of Christ Scientist | Church | 23 | Rapides | 31 18 11 N | 092 27 17 W |
| First Church of God | Church | 17 | Concordia | 31 38 13 N | 091 33 13 W |
| First Church of God | Church | 41 | Morehouse | 32 46 43 N | 091 54 32 W |
| First Church of God | Church | 25 | Rapides | 31 18 21 N | 092 27 55 W |
| First Church of God | Church | 90 | Vernon | 31 15 46 N | 093 01 09 W |
| First Church of God in Christ | Church | 6 | Acadia | 30 12 41 N | 092 22 41 W |
| First Church of God in Christ | Church | 4 | Iberia | 29 54 48 N | 091 40 34 W |
| First Church of God in Christ | Church | 6 | Iberia | 30 00 41 N | 091 49 46 W |
| First Church of God in Christ | Church | 15 | Livingston | 30 28 55 N | 090 56 57 W |
| First Church of God in Christ | Church | 0 | Orleans | 29 56 31 N | 090 05 08 W |
| First Church of God in Christ | Church | 18 | Tangipahoa | 30 30 40 N | 090 27 10 W |
| First Church of the Nazarene | Church | 6 | Acadia | 30 12 59 N | 092 23 32 W |
| First Church of the Nazarene | Church | 52 | Bossier | 32 31 39 N | 093 44 11 W |
| First Church of the Nazarene | Church | 15 | East Baton Rouge | 30 25 56 N | 091 04 39 W |
| First Church of the Nazarene | Church | 22 | Franklin | 32 10 26 N | 091 43 38 W |
| First Church of the Nazarene | Church | 23 | Ouachita | 32 28 16 N | 092 06 49 W |
| First Church of the Nazarene | Church | 22 | Ouachita | 32 30 16 N | 092 07 56 W |
| First Church of the Nazarene | Church | 25 | Rapides | 31 17 31 N | 092 28 18 W |
| First Corithian Baptist Church | Church | 2 | Orleans | 29 58 02 N | 090 03 05 W |
| First Cumberland Presbyterian Church | Church | 24 | Ouachita | 32 29 24 N | 092 06 37 W |
| First Emanuel Baptist Church | Church | 16 | East Baton Rouge | 30 25 59 N | 091 10 47 W |
| First Emmanuel Baptist Church | Church | 0 | Jefferson | 29 55 24 N | 090 02 38 W |
| First Emmanuel Baptist Church | Church | 2 | Orleans | 29 56 13 N | 090 04 46 W |
| First Emmanuel Church | Church | 7 | Ascension | 30 11 51 N | 091 02 32 W |
| First English Lutheran Church | Church | -2 | Jefferson | 30 00 29 N | 090 10 22 W |
| First English Lutheran School | School | 1 | Orleans | 29 58 13 N | 090 03 02 W |
| First Evangelical Lutheran Church | Church | 72 | Caddo | 32 29 29 N | 093 44 45 W |
| First Evangelical Methodist Church | Church | 56 | Caddo | 32 26 22 N | 093 46 43 W |
| First Evangelist Baptist Church | Church | 0 | Orleans | 29 56 43 N | 090 05 17 W |
| First Evening Star Church | Church | 26 | Rapides | 31 18 46 N | 092 33 25 W |
| First Evergreen Baptist Church | Church | 23 | Rapides | 31 17 48 N | 092 26 57 W |
| First Free Mission Baptist Church | Church | 1 | Orleans | 29 56 33 N | 090 03 04 W |
| First Greater Saint James Baptist Church | Church | -1 | Orleans | 29 57 21 N | 090 06 04 W |
| First Holly Grove Baptist Church | Church | 0 | Orleans | 29 58 26 N | 090 06 51 W |
| First House of Prayer | Church | 0 | Orleans | 29 56 13 N | 090 05 30 W |
| First Lake | Lake | 0 | Cameron | 29 42 14 N | 092 52 41 W |
| First Lutheran Church | Church | 5 | Acadia | 30 12 60 N | 092 22 33 W |
| First Methodist Church | Church | 35 | Natchitoches | 31 45 30 N | 093 05 19 W |
| First Methodist Church of Many | Church | 85 | Sabine | 31 34 03 N | 093 28 53 W |
| First Missionary Baptist Church | Church | 8 | St. Tammany | 30 28 54 N | 090 05 49 W |
| First Missionary Church | Church | 9 | Tangipahoa | 30 30 22 N | 090 20 51 W |
| First Morning Star Baptist Church | Church | -1 | Orleans | 29 56 54 N | 090 05 47 W |
| First Mount Olive Church | Church | 6 | Ascension | 30 07 55 N | 091 00 11 W |
| First New Saint Mark Baptist Church | Church | -1 | Orleans | 29 57 24 N | 090 06 06 W |
| First New Zion Travelers Baptist Church | Church | -1 | Orleans | 30 00 16 N | 090 03 53 W |
| First Pentecostal Church | Church | 60 | Beauregard | 30 50 51 N | 093 17 03 W |
| First Pentecostal Church | Church | 4 | Calcasieu | 30 13 19 N | 093 22 54 W |
| First Pentecostal Church | Church | 18 | Catahoula | 31 37 46 N | 091 49 02 W |
| First Pentecostal Church | Church | 30 | East Carroll | 32 46 42 N | 091 10 47 W |
| First Pentecostal Church | Church | 8 | Jefferson Davis | 30 14 18 N | 092 39 26 W |
| First Pentecostal Church | Church | 0 | Orleans | 29 57 54 N | 090 05 07 W |
| First Pentecostal Church | Church | 23 | Rapides | 31 18 43 N | 092 26 46 W |
| First Pentecostal Church | Church | 78 | Webster | 32 37 26 N | 093 17 36 W |
| First Pentecostal Church of Ragley | Church | 31 | Beauregard | 30 31 34 N | 093 14 03 W |
| First Pentecostal Church of Westlake | Church | 4 | Calcasieu | 30 14 55 N | 093 15 29 W |
| First Pilgrim Baptist Church | Church | 21 | Ouachita | 32 30 27 N | 092 05 04 W |
| First Presbyterian Church | Church | 6 | Acadia | 30 12 51 N | 092 22 12 W |
| First Presbyterian Church | Church | 53 | Bossier | 32 30 53 N | 093 43 44 W |
| First Presbyterian Church | Church | 78 | Caddo | 32 29 56 N | 093 44 56 W |
| First Presbyterian Church | Church | 4 | Calcasieu | 30 12 53 N | 093 11 54 W |
| First Presbyterian Church | Church | 13 | East Baton Rouge | 30 26 52 N | 091 11 00 W |
| First Presbyterian Church | Church | 6 | Iberia | 30 00 06 N | 091 47 56 W |
| First Presbyterian Church | Church | 10 | Lafayette | 30 13 05 N | 092 01 08 W |
| First Presbyterian Church | Church | 14 | Livingston | 30 29 23 N | 090 57 37 W |
| First Presbyterian Church | Church | 41 | Morehouse | 32 46 32 N | 091 54 54 W |
| First Presbyterian Church | Church | 41 | Natchitoches | 31 45 09 N | 093 04 59 W |
| First Presbyterian Church | Church | -1 | Orleans | 29 56 32 N | 090 06 35 W |
| First Presbyterian Church | Church | 21 | Ouachita | 32 31 01 N | 092 06 51 W |
| First Presbyterian Church | Church | 12 | Tangipahoa | 30 30 14 N | 090 27 52 W |
| First Presbyterian Church | Church | 8 | Tangipahoa | 30 26 19 N | 090 26 16 W |
| First Presbyterian Church | Church | 5 | Vermilion | 29 58 27 N | 092 08 01 W |
| First Presbyterian Church of Scotlandville | Church | 20 | East Baton Rouge | 30 31 52 N | 091 10 52 W |
| First Revelation Baptist Church | Church | 16 | East Baton Rouge | 30 27 14 N | 091 09 10 W |
| First Saint James Baptist Church | Church | -1 | Orleans | 29 57 37 N | 090 06 25 W |
| First Saint Mark Baptist Church | Church | 24 | Rapides | 31 18 52 N | 092 27 46 W |
| First Saint Paul Baptist Church | Church | 85 | Vernon | 31 09 05 N | 093 16 12 W |
| First Seventh Day Adventist Church | Church | 24 | Ouachita | 32 31 36 N | 092 02 33 W |
| First Shiloh Baptist Church | Church | -1 | Orleans | 29 57 31 N | 090 05 24 W |
| First Southern Methodist Church | Church | 66 | Caddo | 32 27 09 N | 093 45 00 W |
| First Southern Methodist Church | Church | 17 | East Baton Rouge | 30 29 23 N | 091 08 20 W |
| First Southern Methodist Church | Church | 34 | Tangipahoa | 30 43 40 N | 090 30 11 W |
| First Southern Methodist Church | Church | 76 | Webster | 32 36 14 N | 093 17 53 W |
| First Street United Methodist Church | Church | 1 | Orleans | 29 56 08 N | 090 05 04 W |
| First Street Wharf | Locale | 4 | Orleans | 29 55 19 N | 090 04 21 W |
| First Thessalonian Missionary Church | Church | 1 | Orleans | 29 57 30 N | 090 01 03 W |
| First Thessalonians Baptist Church | Church | 29 | Washington | 30 46 16 N | 089 51 08 W |
| First Union Church | Church | 20 | Avoyelles | 30 56 08 N | 092 10 01 W |
| First Union Presbyterian Church | Church | 0 | St. Charles | 29 54 36 N | 090 20 53 W |
| First Unitarian Church | Church | 1 | Orleans | 29 55 51 N | 090 06 46 W |
| First United Church | Church | 43 | Union | 32 42 07 N | 092 06 17 W |
| First United Church of Baton Rouge | Church | 7 | East Baton Rouge | 30 21 42 N | 091 01 17 W |
| First United Church of Christ | Church | -1 | Orleans | 29 56 28 N | 090 06 33 W |
| First United Methodist Church | Church | 6 | Acadia | 30 12 49 N | 092 22 09 W |