Piping Inside The House

San Salvador is the top region by piping inside the house in El Salvador. As of 2007, piping inside the house in San Salvador was 341,220 that accounts for 42.67% of El Salvador's piping inside the house. The top 5 regions (others are La Libertad, Santa Ana, San Miguel, and Sonsonate) account for 77.78% of it. El Salvador's total piping inside the house was estimated at 799,583 in 2007.