It’s probably little surprise to you that Sen. Barack Obama (D-Ill.) won the District of Columbia’s Democratic presidential primary. Is it a surprise that the Senator won every last of the District’s 142 voting precincts? According to preliminary results from the D.C. Board of Elections and Ethics, that’s the case.

Though the map may appear as if Sen. Hillary Clinton (D-N.Y.) did well in many Northwest neighborhoods, she only managed to keep Obama under 60 percent of the vote in ten precincts. Her strongest showing was Precinct 3, the neighborhood including the Watergate, some G.W. housing, and the Foggy Bottom Historic District; but she still lost to Obama in a 275-243 vote.

While his margin of victory was large in almost all precincts, Obama overwhelmingly won precincts east of Georgia Avenue, precincts in Northeast, and the precincts East of the Anacostia River. The voters in the dark blue areas in the above map went more than 80 percent for Obama, and some reached close to 90 percent. The darkest blue area on the map–Precinct 97, near the eastern point of the District–gave Obama 100 percent of its vote according to the BOEE, but the reported results contained only ten votes, which is less than one percent turnout. Voting officials may want to review that precinct, as that seems unlikely.

We’ll leave you readers to interpret the results, but recommend against the folly of divvying the results into class, social, or racial categories. District voters are largely in agreement about their preferred presidential candidate, and braying about the difference between one neighborhood that voted 65 percent for Obama and another that voted 72 percent would be silly.

You can access an interactive version of the image above in Google Maps (minimize the categories and unclick the “labels” box), or find a slightly more robust version in Google Earth. You can access a Google Earth KML file directly here.