While Denver gets kudos from practically everyone but Dan Maes for its B-Cycle bike-sharing program, Boulder and Fort Collins are the true kings of cycling, according to new Census Bureau data that finds 12.3 percent of Boulder’s workers aged 16 or older use bicycles to commute to their jobs (via the Daily Camera). That rate is the highest in the nation, according to the bureau’s American Community Survey, which points out that roughly half the workers in Boulder don’t get a workout on their way to their jobs because they rely on cars to get to work.

While Eugene, Oregon, comes in second, Fort Collins is third on the survey. There, 9.9 percent of workers hop on a bike to get to their jobs. Fort Collins bicycle coordinator Dave “DK” Kemp emphasizes one issue important to keeping cyclists on the road: safety.

“We have a number of projects in the pipeline to make our streets safer,” Kemp tells the Coloradoan. “We’re looking at innovative traffic devices that make cycling safer on the streets, everything from bike boxes to shared lane markings.”