"So Pure" peaking outside the top 20 on the US Billboard Adult Top 40 and Top 40 Mainstream charts, but it did peak inside the top 20 in Canada. "So Pure" failed to chart on the US Billboard Hot 100 and performed moderately in the United Kingdom, where it reached the top 40.
"So Pure" peaked outside the top 20 on the US Adult Top 40 and Mainstream charts, but achieved a higher ranking in Canada. In contrast, it did not chart on the US Billboard Hot 100 and performed reasonably well in the UK, where it reached the top 40.