"Party for Two" debuted on the "Billboard" Hot Country Singles & Tracks chart in the week of September 18, 2004, at number 39, Twain's third highest debut of all time, and highest of the week. The single spent 20 weeks on the chart and climbed to a peak position of number seven on December 25, 2004, where it remained for one week. "Party for Two" became Twain's 16th top ten single and 22nd (seventh consecutive) top 20 single. It also peaked at number 58 on the "Billboard" Hot 100 and 57 on the Hot 100 Airplay charts.