Over the past 110 years, 62 027 boys and 15 girls have been named Jonathon. The name Jonathon ranks 394th in the United States among the most common names for boys. For the first time more than ten times newborns were named Jonathon in 1943. The peak of popularity of the name Jonathon came in the 1980s and 1990s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.