Environmental Atlas of the Lake Pontchartrain Basin

	Environmental Issues: Coastal Land Loss | Shoreline Change and Rates | Urbanization | Aggregate Dredge Holes | Dredge Pit Characterization | Bonnet Carré Diversion | Water Quality | Sediment Quality & Dispersal

Environmental Issues - Urbanization

• Population Character of the Lake Pontchartrain Basin
• Agricultural Character of the Lake Pontchartrain Basin

Lake Pontchartrain Basin Population 1990

Parish Population 1990 Ascension* 58,214 East Baton Rouge 380,105 East Feliciana 19,211 Iberville* 31,409 Jefferson* 448,306 Livingston 70,526 Orleans* 496,938 Plaquemines* 25,575 St. Bernard 66,631 St. Charles* 42,437 St. Helena 9,874 St. James* 20,879 St. John the Baptist* 39,996 St. Tammany 144,508 Tangipahoa 85,709 Washington 43,185 * West banks of these parishes are not included in the Lake Pontchartrain Basin.

Lake Pontchartrain Basin Population 1999

Parish Population 1999 Ascension* 7,409 East Baton Rouge 393,294 East Feliciana 21,119 Iberville* 31,357 Jefferson* 447,790 Livingston 91,182 Orleans* 460,913 Plaquemines* 26,094 St. Bernard 65,406 St. Charles* 48,640 St. Helena 9,607 St. James* 21,197 St. John the Baptist* 42,494 St. Tammany 192,945 Tangipahoa 98,285 Washington 43,162 * West banks of these parishes are not included in the Lake Pontchartrain Basin.

Figure 19: LPB parish population map for 1999.

Lake Pontchartrain Basin % Population Change 1990 - 1999

Parish Population Change Ascension* 27.2% East Baton Rouge 3.5% East Feliciana 9.9% Iberville* 1.0% Jefferson* -0.1% Livingston 29.3% Orleans* -7.2% Plaquemines* 2.0% St. Bernard -1.8% St. Charles* 14.6% St. Helena -2.7% St. James* 1.5% St. John the Baptist* 6.2% St. Tammany 33.5% Tangipahoa 14.7% Washington -0.1% * West banks of these parishes are not included in the Lake Pontchartrain Basin.

Lake Pontchartrain Basin Persons/Mile2 1999

Parish Persons/Mile2 Ascension* 253.9 East Baton Rouge 863.0 East Feliciana 46.6 Iberville* 50.7 Jefferson* 1463.8 Livingston 140.7 Orleans* 2552.1 Plaquemines* 30.9 St. Bernard 140.6 St. Charles* 171.4 St. Helena 23.5 St. James* 86.1 St. John the Baptist* 194.1 St. Tammany 225.8 Tangipahoa 124.4 Washington 64.5 * West banks of these parishes are not included in the Lake Pontchartrain Basin.