Louisiana

Eight regions on county lines: Northwest Louisiana, Northeast Louisiana, West Central Louisiana, Central Louisiana, Baton Rouge/Northshore, Southwest Louisiana, Acadiana and Southeast Louisiana.

In the editor each region takes a level with one click. When one region needs more detail, split it into its counties and set them one by one; merge it back when they agree.

Regions in this starter map

• Northwest Louisiana5 countiesBossier Parish · Caddo Parish · De Soto Parish · Red River Parish · Webster Parish
• Northeast Louisiana15 countiesBienville Parish · Caldwell Parish · Claiborne Parish · East Carroll Parish · Franklin Parish · Jackson Parish · Lincoln Parish · Madison Parish · Morehouse Parish · Ouachita Parish · Richland Parish · Tensas Parish · Union Parish · West Carroll Parish · Winn Parish
• West Central Louisiana3 countiesNatchitoches Parish · Sabine Parish · Vernon Parish
• Central Louisiana8 countiesAvoyelles Parish · Catahoula Parish · Concordia Parish · Evangeline Parish · Grant Parish · LaSalle Parish · Rapides Parish · St. Landry Parish
• Baton Rouge/Northshore10 countiesEast Baton Rouge Parish · East Feliciana Parish · Livingston Parish · Pointe Coupee Parish · St. Helena Parish · St. Tammany Parish · Tangipahoa Parish · Washington Parish · West Baton Rouge Parish · West Feliciana Parish
• Southwest Louisiana7 countiesAcadia Parish · Allen Parish · Beauregard Parish · Calcasieu Parish · Cameron Parish · Jefferson Davis Parish · Vermilion Parish
• Acadiana6 countiesAssumption Parish · Iberia Parish · Iberville Parish · Lafayette Parish · St. Martin Parish · St. Mary Parish
• Southeast Louisiana10 countiesAscension Parish · Jefferson Parish · Lafourche Parish · Orleans Parish · Plaquemines Parish · St. Bernard Parish · St. Charles Parish · St. James Parish · St. John the Baptist Parish · Terrebonne Parish

County lines from the Census Bureau, coastline from Natural Earth.