The graph below ranks each Louisiana Parish by total residents according to the 2006 census estimates.
Louisiana total population by county
| Parish | Total Population |
| Jefferson |  431,361 |
| East Baton Rouge | 429,073 |
| Caddo | 253,118 |
| St. Tammany | 230,605 |
| Orleans | 223,388 |
| Lafayette | 203,091 |
| Calcasieu | 184,524 |
| Ouachita | 149,259 |
| Rapides | 130,201 |
| Livingston | 114,805 |
| Tangipahoa | 113,137 |
| Terrebonne | 109,348 |
| Bossier | 107,270 |
| Ascension | 97,335 |
| Lafourche | 93,554 |
| St. Landry | 91,528 |
| Iberia | 75,509 |
| Acadia | 60,457 |
| Vermilion | 56,021 |
| St. Charles | 52,761 |
| St. Mary | 51,867 |
| St. Martin | 51,341 |
| St. John Baptist | 48,537 |
| Vernon | 46,748 |
| Washington | 44,750 |
| Avoyelles | 42,663 |
| Lincoln | 41,857 |
| Webster | 41,301 |
| Natchitoches | 38,719 |
| Evangeline | 35,911 |
| Beauregard | 35,130 |
| Iberville | 32,974 |
| Jefferson Davis | 31,418 |
| Morehouse | 29,761 |
| De Soto | 26,390 |
| Allen | 25,447 |
| Sabine | 23,934 |
| Assumption | 23,472 |
| Union | 22,964 |
| Pointe Coupee | 22,648 |
| Plaquemines | 22,512 |
| West Baton Rouge | 22,463 |
| St. James | 21,721 |
| East Feliciana | 20,922 |
| Richland | 20,554 |
| Franklin | 20,455 |
| Grant | 19,879 |
| Concordia | 19,460 |
| Claiborne | 16,210 |
| Winn | 15,835 |
| West Feliciana | 15,535 |
| St. Bernard | 15,514 |
| Jackson | 15,202 |
| Bienville | 15,168 |
| La Salle | 14,093 |
| Madison | 12,328 |
| West Carroll | 11,732 |
| St. Helena | 10,759 |
| Caldwell | 10,615 |
| Catahoula | 10,567 |
| Red River | 9,438 |
| East Carroll | 8,699 |
| Cameron | 7,792 |
| Tensas | 6,138 |