pewforum.org/Christian/Evangelic … aders.aspx
The full pdf of the report can be downloaded from their organizational page here. (I think; hopefully that link works, but there are similar links at the actual website.)
On a quick read through the Executive Summary and the specific report on beliefs and practices, I didn’t see universalism explicitly addressed as a topic anywhere (but neither were the other two large soteriology groups, Calv and Arm).