Ethan Klapper has the scoop on the death of Blackberries in DC.

The dominance of BlackBerry devices in Washington is waning, although they still have an edge over rival smartphones, according to a National Journal survey of how workers on Capitol Hill, in the executive branch, and the private sector use technology and consume media.

In January, 77 percent of Capitol Hill staffers said they have BlackBerrys, down from 93 percent in 2009, the last time the survey was conducted. Just 1 percent of those surveyed who work on Capitol Hill said they were planning to buy one. In 2009, 76 percent of the private-sector staff surveyed said they owned BlackBerrys, but now just 50 percent do. The technology’s predominance fell among federal executives, from 76 percent to 57 percent. Fewer than 1 percent in the private sector and executive branch planned to buy a BlackBerry.

Apple’s iPhone has taken a chunk of the BlackBerry’s market share, the online survey found 41 percent of Capitol Hill staffers surveyed said they have an iPhone, as do 42 percent of private-sector workers and 27 percent of federal executives. In 2009, iPhones were rarer: Of the 1,184 Washington workers surveyed, just 13 percent on Capitol Hill, 15 percent in the private sector, and 9 percent in the executive branch reported having one.

Read Ethan’s entire story.