Though he campaigned on the theme of “One City,” Mayor Vince Gray’s election showed a city starkly divided along racial and geographic lines. And though Gray’s branded everything that doesn’t move with the “One City” slogan since taking office, the results of the April 26 At-Large Special Election seem to show that we’re no closer to Gray’s dream of citywide unity than we were a year ago.

In last week’s contest, victor Vincent Orange won Wards 4, 5, 7 and 8, which are primarily African American. Runner-up Patrick Mara took wards 2, 3 and 6, which — while certainly not devoid of diversity — are mostly white. Bryan Weaver claimed Ward 1 — the city’s most diverse — while Sekou Biddle and Josh Lopez showed the most crossover appeal, doing well across the city but not particularly well in any one part of it.

The racial disparities become all that more apparent when you map them, which D.C. for Democracy‘s Keith Ivey recently did. Ivey not only mapped the individual performances of the different candidates — a darker shade means more votes; the maps are below — but also matched the precincts where a particular candidate got a plurality with that candidate’s campaign color. So, as you can see above, Mara, who is represented by the color blue, did very well in the city’s western half and throughout Ward 6, which allowed him to cut through the heart of the city to the eastern edges. Orange (represented by his namesake color), on the other hand, took the east end of the District and swept around the northern reaches that cut west. (His victory looks a lot like Gray’s.) Weaver has his Ward 1 enclave, while Biddle, represented by a shade of red, only picked up a few northwestern precincts.

We’re a divided city. There’s no getting around that. But there’s some silver lining to be considered. First of all, fewer than 10 percent of D.C. voters actually cast ballots on April 26. More voters may have mixed things up. Second, as we noted above, both Biddle and Lopez had relatively solid crossover appeal. Had the election season been longer and more widely-advertised, Biddle may have picked up enough votes from across the city to buck the trend and win the race. Third, there’s certainly something to be said for Orange’s change of fortunes from last year’s race for the D.C. Council chairmanship to this year’s run for the At-Large seat. In 2010, he won Ward 3 and came close in Ward 2, losing badly to Kwame Brown everywhere else. This year, he placed fourth in both. Finally, there are still politicians that attract support from across the city’s racial and geographic splits. Councilmember Phil Mendelson (D-At Large) is one, as was Mayor Adrian Fenty when he won in 2006. (Ironic, much?)

Regardless, maps like these show that we’re still a long way away from the “One City” that Gray campaigned and is governing on.