So the Seattle Times has this page which mostly focuses on the central puget sound region so if you have something for your locale feel free to add it For me looking at the top 10 cities and seeing Tacoma's population increase due to annexation number is the most unintentionally funny thing I have seen in the census data.
I'm a little surprised that Tacoma did not pass Spokane in this census. They almost caught up in the 2000 census and I was expecting the trend to continue, but it looks like the population in Spokane really took off while Tacoma was basically stagnant. And I'm glad to see Tacoma went out of their way to annex those three people. Heh. Hopefully they were multi-millionaires living on high value property, otherwise I'm sure the paperwork cost the city more than they are bringing in via property taxes.