The graph below ranks each Louisiana Parish by total residents according to the 2012 census estimates.
Louisiana total population by county
| Parish | Total Population |
| East Baton Rouge |  444,275 |
| Jefferson | 434,123 |
| Orleans | 369,888 |
| Caddo | 257,091 |
| St. Tammany | 239,193 |
| Lafayette | 226,886 |
| Calcasieu | 194,323 |
| Ouachita | 155,313 |
| Rapides | 132,270 |
| Livingston | 131,865 |
| Tangipahoa | 123,662 |
| Bossier | 123,074 |
| Ascension | 112,126 |
| Terrebonne | 111,713 |
| Lafourche | 96,965 |
| St. Landry | 83,450 |
| Iberia | 73,766 |
| Acadia | 61,923 |
| Vermilion | 58,663 |
| Vernon | 54,050 |
| St. Mary | 53,558 |
| St. Martin | 52,728 |
| St. Charles | 52,502 |
| Lincoln | 47,082 |
| Washington | 46,690 |
| St. John Baptist | 44,787 |
| Avoyelles | 41,569 |
| St. Bernard | 41,567 |
| Webster | 40,920 |
| Natchitoches | 39,434 |
| Beauregard | 36,240 |
| Evangeline | 33,558 |
| Iberville | 33,303 |
| Jefferson Davis | 31,439 |
| Morehouse | 27,430 |
| De Soto | 27,033 |
| Allen | 25,533 |
| Sabine | 24,315 |
| West Baton Rouge | 24,092 |
| Plaquemines | 23,879 |
| Assumption | 23,099 |
| Pointe Coupee | 22,737 |
| Union | 22,442 |
| Grant | 22,062 |
| St. James | 21,717 |
| Richland | 20,911 |
| Franklin | 20,622 |
| Concordia | 20,434 |
| East Feliciana | 19,998 |
| Claiborne | 16,832 |
| Jackson | 16,214 |
| West Feliciana | 15,437 |
| Winn | 15,027 |
| La Salle | 14,863 |
| Bienville | 14,156 |
| Madison | 12,209 |
| West Carroll | 11,500 |
| St. Helena | 11,063 |
| Catahoula | 10,249 |
| Caldwell | 10,029 |
| Red River | 9,029 |
| East Carroll | 7,572 |
| Cameron | 6,682 |
| Tensas | 4,972 |