By Gwen Davis

As soon as next year, residents of White Center and the rest of unincorporated North Highline could vote about whether to become part of Seattle.

As previously reported, last week the Legislature agreed to redirect roughly $7 million in state sales tax to Seattle each year for six years if the city annexes the area. The money would help the city cover the annexation costs. Mayor Ed Murray has reportedly long wanted to unify the city.

The North Highline area is one of the last “urban islands” remaining in the city. Over the past several years, King County officials have sought annexation for densely populated but unincorporated communities surrounded by cities.

However, there have been recent, unsuccessful attempts to incorporate the area. In 2009, Burien annexed the southern portion of North Highline, but the Seattle City Council said no to the northern portion. In 2012, Burien voters likewise said no.

Murray hopes that the outcome will be different this time. Last summer the city council supported this intent, but since four new members were appointed since then, there’s no guarantee.

Between 17,000 and 18,000 people live in unincorporated North Highline.

This story will be updated. Check back soon for details.