This Map Displays the Partisan Voting Index Value for each county in Louisiana. The Partisan Voting Index (PVI) is a measurement of how strongly a county leans toward the Democratic or Republican Party. The PVI is calculated by taking the average percentage for the winning party in a county for the last two elections and subtracting that value from the national average for that party in the same two elections. The data is based on results from the 2020 and 2016 presidential election. Of the 64 Parishes in Louisiana The Parish with the highest Republican PVI is Cameron Parish at +40. The Parish with the highest Democrat PVI is Orleans Parish at +35.
List of All Parishes in Louisiana With Partisan Voting Index (2020 Presidential Election Results) | ||||
|---|---|---|---|---|
| Map Key | Name | Partisan Voting Index (2020) | ||
| Acadia Parish | Republican +29 | |||
| Allen Parish | Republican +26 | |||
| Ascension Parish | Republican +16 | |||
| Assumption Parish | Republican +13 | |||
| Avoyelles Parish | Republican +19 | |||
| Beauregard Parish | Republican +32 | |||
| Bienville Parish | Republican +5 | |||
| Bossier Parish | Republican +21 | |||
| Caddo Parish | Democrat +5 | |||
| Calcasieu Parish | Republican +16 | |||
| Caldwell Parish | Republican +33 | |||
| Cameron Parish | Republican +40 | |||
| Catahoula Parish | Republican +23 | |||
| Claiborne Parish | Republican +7 | |||
| Concordia Parish | Republican +13 | |||
| DeSoto Parish | Republican +11 | |||
| East Baton Rouge Parish | Democrat +7 | |||
| East Carroll Parish | Democrat +16 | |||
| East Feliciana Parish | Republican +7 | |||
| Evangeline Parish | Republican +21 | |||
| Franklin Parish | Republican +22 | |||
| Grant Parish | Republican +35 | |||
| Iberia Parish | Republican +15 | |||
| Iberville Parish | Democrat +5 | |||
| Jackson Parish | Republican +20 | |||
| Jefferson Davis Parish | Republican +26 | |||
| Jefferson Parish | Republican +5 | |||
| La Salle Parish | Republican +40 | |||
| Lafayette Parish | Republican +14 | |||
| Lafourche Parish | Republican +28 | |||
| Lincoln Parish | Republican +8 | |||
| Livingston Parish | Republican +35 | |||
| Madison Parish | Democrat +11 | |||
| Morehouse Parish | Republican +6 | |||
| Natchitoches Parish | Republican +5 | |||
| Orleans Parish | Democrat +35 | |||
| Ouachita Parish | Republican +11 | |||
| Plaquemines Parish | Republican +17 | |||
| Pointe Coupee Parish | Republican +9 | |||
| Rapides Parish | Republican +15 | |||
| Red River Parish | Republican +6 | |||
| Richland Parish | Republican +16 | |||
| Sabine Parish | Republican +32 | |||
| Saint Bernard Parish | Republican +14 | |||
| Saint Charles Parish | Republican +14 | |||
| Saint Helena Parish | Democrat +9 | |||
| Saint James Parish | Democrat +6 | |||
| Saint John the Baptist Parish | Democrat +16 | |||
| Saint Landry Parish | Republican +6 | |||
| Saint Martin Parish | Republican +17 | |||
| Saint Mary Parish | Republican +14 | |||
| Saint Tammany Parish | Republican +22 | |||
| Tangipahoa Parish | Republican +15 | |||
| Tensas Parish | Democrat +6 | |||
| Terrebonne Parish | Republican +24 | |||
| Union Parish | Republican +24 | |||
| Vermilion Parish | Republican +30 | |||
| Vernon Parish | Republican +32 | |||
| Washington Parish | Republican +18 | |||
| Webster Parish | Republican +15 | |||
| West Baton Rouge Parish | Republican +5 | |||
| West Carroll Parish | Republican +35 | |||
| West Feliciana Parish | Republican +10 | |||
| Winn Parish | Republican +24 | |||