(CNN) For the first time "No Religion" has topped a survey of Americans' religious identity, according to a new analysis by a political scientist. The non-religious edged out Catholics and evangelicals in the long-running General Social Survey.

Ryan Burge, a political scientist at Eastern Illinois University and a Baptist pastor, found that 23.1% of Americans now claim no religion.

Catholics came in at 23.0%, and evangelicals were at 22.5%.

The three groups remain within the margin of error of each other though, making it a statistical tie. Over 2,000 people were interviewed in person for the survey.

A growing number of Americans reject organized religion

Pope Francis leaves the Basilica of SantAnselmo on March 6, 2019 in Rome.

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