Look at 'em all coming! We're gonna need bigger streetcars! And more condos, too!

And some Platinum L.E.E.D. In-N-Out Burger stands to work in -- with "bicycles only" service lanes! Plannerpalooza is coming back!

Washington County doesn't have as many lines, but they are thicker. More thick red, and even more thick black.

Seems once a Californian figures out what Beaverton has to offer, they're all over it.

Also interesting to see trends in other places - mass exodus from South Florida, except for the thick black lines coming in from New York.

People in Northern Ohio (Cleveland) going to Southern Ohio (Cincinnati), while people in Cincinnati go to New York.

People in the deep south, go nowhere. No one goes there. Basically static.

Wow, what a fascinating map! Interesting to see how many people moved to & from a particular location and to see the incomes that moved along with them. I didn't look at it long enough to see if it was a net economic gain or loss though.

Awesome map! Thanks for sharing.

People in the deep south, go nowhere.

Tax records are backwards-looking. There will be a mass exodus from the Gulf Coast once the tourism businesses collapse from the BP Oil spill and there are no assets to compensate their losses.

That does bring up an interesting question: How do you account for college graduates moving to their first job in this data, given they may not have had income and filed returns previously? It would seem that that would represent a significant undercount, along with the usual undercount factor from the underground economy.

It's only an "undercount" if you read more into the map than it claimed to provide in the first place. It is what it is.

Fascinating. Look at Wayne and Oakland Counties in Michigan. Ugh!

Does not count those who do not pay or file taxes. And the lines do not link to Mexico or Central American countries. AZ lines would be heavy, heavy red.

And the lines do not link to Mexico or Central American countries. AZ lines would be heavy, heavy red.

Actually, red indicates outmigration. If lines from AZ to south of the border were red, then they'd show people leaving the country.

I love statistical analysis.. Great graph!

Check out NJ -- sadly, just about every county was hemorrhaging people.