Wow

Courtesy InstaPundit, this graphic from Tax Prof:

Source: The Tax Foundation, Updated Combined State and Local Sales Tax Rates.

Note that this is ONLY Sales Tax rates; Oregon does have an income tax, but they are shown as having a "zero" rate.
UPDATED:  The TAx Foundation has a chart of state individual income tax rates here.

I seriously expected that Washington State would have had higher rates than Tennessee, where my parents live...