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The New York Times data mapping tool with new results from the American Community Survey is pure magic. One of the things it illustrates most clearly, though, is something that it didn’t take wizardry to figure out: Incomes in D.C. aren’t rising as quickly as rents or home values.

First, take a look at the map of changes in median income since 2000: Some positive, and some negative.

Next, here’s the map of changes in median rent: With a few exceptions on the outskirts of the city, the trend is up.

Finally, here’s the map for changes in median home value since 2000: An across-the-board jump, sometimes in triple-digit percentages. Just another illustration of why it’s difficult to buy a house in this town.