Quick blurb about reapportionment for 2010. Average house district size is 710,767.
Interactive map available at the Census 2010 site. Pdf map of apportionment results.
More discussion and charts at Swing State Project.
Big Winner - Texas +4 (to 36 seats total)
Big Losers:
Ohio -2 (16 seats total)
New York -2 (27 seats total)
Other winners
Florida +2 (27 seats total)
Arizona +1 (9 seats total)
Georgia +1 (14 seats total)
Nevada +1 (4 seats total)
South Carolina +1 (7 seats total)
Utah +1 (4 seats total)
Washington +1 (10 seats total)
Other losers:
Illinois -1 (18 seats total)
Iowa -1 (4 seats total)
Louisiana -1 (6 seats total)
Massachusetts -1 (9 seats total)
Michigan -1 (14 seats total)
Missouri -1 (8 seats total)
New Jersey -1 (12 seats total)
Pennsylvania -1 (18 seats total)
The rate of population change in the US slowed, and has moved South. The center of the population is now in Southern Missouri. The Northeast is the smallest region of the country. Michigan lost population from 2000. The West is larger than the Midwest.
Most of the losses in house seats are in the Northeast (with the exception of Louisiana). The gains are in the South and in Washington.
For the electoral college and the 2008 election, Obama would lose 6 electoral votes. McCain would have gained 6.
Over time, Democrats would have lost seats in 4 blue states (New York, Illinois, Massachusetts, and New Jersey) (gaining 1 in Washington). The net for blue states is -4.
In purple states, 5 states lost 6 seats (Ohio, Iowa, Michigan, Missouri, Pennsylvania). 2 purple states gained 3 seats (Florida and Nevada). The net in purple states is -3.
Safe Republican states gained 8 seats (while losing 1 in Louisiana). The net for Republican states is +7.