A smash hit in Chicago (chart peak: #4), Reddy's "You're My World" otherwise failed to break in any first-tier metropolitan market: the track did reach #1 in Buffalo - where WKBW-AM would rank "You're My World" as the #5 hit of 1977 - and received moderate support in a number of regional markets, reaching a "Billboard" Hot 100 peak of #18 in July 1977. "You're My World" was thus Reddy's highest charting single since "Ain't No Way to Treat a Lady" almost two years previously, besting the #29 peak of "I Can't Hear You No More" the lead single off Reddy's precedent "Music, Music" album: however "You're My World" would prove to be Reddy's last Top 40 hit. With a debut on the Hot 100 dated 30 April 1977 and final appearance 24 September 1977, "You're My World" ties with Reddy's signature #1 hit "I am Woman" as the singer's longest-running Hot 100 hit. Commenting on the lengthy chart tenure of the Top Ten shortfall "You're My World", Jeff Wald would state: "As busy as Records are with ten eleven acts with [rising chart hits they didn't lose the Helen Reddy record, they didn't give up on it...There's not many labels that would stay with the record of an established artist, not a new artist that they're trying to break, stay with a record for nineteen so weeks like that and pound it and pound it and pound it."