[the bottle let me down]

Why would Federal taxes be different from State to State?

States with higher average income will have more people in high federal tax brackets. Hence the average Federal tax paid by people in that state will be higher than in states with lower average income.

[Ken H]

Ahhh, yes. Thanks.

I think they also forgot to include FICA, which adds about about 15% to the total burden for the first ~60,000 of income.

I use the 15% figure since the employer's 7.65% FICA contribution is really your money.