The top five most bipartisan freshman members of Congress, based on the number of bills they've co-sponsored having opposite-party sponsors, are all House Republicans, data collected by Quorum reveals.

By the numbers: Rep. Young Kim (R-Calif.) takes the lead with 58.57% of her co-sponsorships linked to bills written by Democrats.

• Sen. Mark Kelly (D-Ariz.) is the most bipartisan Senate Democratic freshman, at 28.3%, and Rep. Kaiali'i Kahele (D-Hawaii) leads House Democratic freshmen, at 8.1%.

Worth noting: Democrats naturally have a smaller percentage of bipartisan co-sponsorships, given they're currently in the House and Senate majorities.