Taxpayers called Michael are the largest bloc—name-wise that is—contributing to the city coffers. Johns, Jameses, Davids, Roberts, Williams, Marys, Christophers, Elizabeths, and Joses follow, according to an analysis done by D.C.’s Office of Revenue Analysis and published on their popular District, Measured blog.

Those names correspond, albeit in a different order, to the number of registered voters (with the exception of Charles, which replaces Jose on that list). The authors also sorted the most popular names for District natives, at least those born in D.C. proper since 1910. The top ten, in order was: John, James, Robert, Michael, William, Mary, David, Charles, Thomas, and Richard.

Name nerds can play around with an interactive chart they developed, showing where names in the top 500 rank in those three categories.

Once done with that, you can see how unoriginal your original baby names are using an interactive bubble chart of name frequency (evidently, the Zoe/Zoeys, Kings, Avas, Olivers, and Elijahs born in 2014 are likely to run into classmates with their names). Scrolling back a few decades, though, and you’ll see how certain names once completely dominated the field, whereas there is much less overlap in today’s world of bespoke baby names.

Compare 1913 to 2013, for example.

District of Columbia specific data on the relative frequency of given names in the population of U.S. births where the individual has a Social Security Number in 1913. (Courtesy of DISTRICTMEASURED.COM)

District of Columbia specific data on the relative frequency of given names in the population of U.S. births where the individual has a Social Security Number in 2013. (Courtesy of DISTRICTMEASURED.COM)

And in the event you need to make assumptions about someone whom you only know by first name (and that they were born in D.C.), you can consult these charts showing the frequency of names by year (Michael, for example, peaked in 1958) as well as how names correspond to political affiliation. A Tyler, for example, would have a 15 percent chance of being a Republican—he highest in D.C.—and was most likely born in the early 1990s.