Photo by George Brett.

Maids, home health care workers, security guards, and childcare workers are among the workers that have the longest commute times in the District, according to the Office of Revenue Analysis’ District, Measured.

Nine of the top ten professions with the longest commute times—33 minutes or more—are categorized as low wage (where the median wage is in the bottom 25 percent of wages across all jobs in D.C.)

Conversely, four of the five occupations with the shortest commutes are in highly paid industries like medicine and law.

The data isn’t particularly surprising given the increasing premium on “walkable” neighborhoods in D.C. But the commute data from the 2013 American Community Survey also sheds some light on how many professionals both live and work in D.C. and how different workers are actually getting to their place of employment.

The vast majority of economists, waiters, lawyers, janitors, nurses, and PR professionals who live in the District also work here, whereas more than forty percent of D.C.-based physicians and surgeons head outside of the city for work.

Paralegals and waitresses most commonly take the Metro; cashiers and cooks are usually on the bus; and both childcare workers and CEOs go by car. The only professionals that most commonly walked to work are economists, whose 25-minute average commute time is among the lowest of those surveyed.

As for writers and authors? They’re usually sitting at home, clacking away in an empty house about other people’s commute times.

Via District, Measured.