 Annexation of the area would add 20,000 people and nearly to the city, creating the sixth largest city in Washington by population, at over 106,000 residents and nearly .On August 21, 2007, residents of the proposed East Federal Way annexation area rejected annexation to Federal Way by a 66% to 34% margin.Opponents of the plan, favoring remaining under direct King County government, asserted fears that increased density and higher taxes would result from annexation despite proponents showing studies that taxes and fees would be unchanged.