Lofa County has six districts (2008 population):Foya District (100,000), Kolahun District (59,057), Salayea District (22,968), Vahun District (16,876), Voinjama District (40,730), and Zorzor District (40,352). The Legislature of Liberia was modeled based on the Legislature of United States. It is bicameral in nature with a Senate and the House of Representatives. There are 13 counties in the country and based on the population, each county is defined to have at least two members, while the total number of members to the house including the Speaker being 64. Each member represents an electoral district and elected to a six-year term based on popular vote. There were 26 senators, two each for the 13 counties and they serve a nine-year term (30 senators, 15 counties and nine years from 2011). Senators are also elected based on plurality of votes. The Vice-President is the head of the Senate and he also acts as President in the President's absence.