In the United States, Columbia released "Thank God I Found You" to radio stations as the second single from
Rainbow in November 1999. A physical single was later released on January 25, 2000, in the US and on February 28, 2000, in the United Kingdom. The issue dated December 11, 1999, debuted at number eighty-two on the
Billboard Hot 100—Carey's lowest debut at the time. On the week dated February 19, 2000, the song reached number-one on the US
Billboard Hot 100 chart, becoming Carey's fifteenth number-one single and marking her eleventh consecutive year with a number-one song. It remained Carey's last number-one hit in the US until 2005's "
We Belong Together" and, to date, remains 98 Degrees' only number-one song; Joe, meanwhile, would only receive one more number-one hit later in his career: 2001's "
Stutter". It was certified
Platinum by the
Recording Industry Association of America (RIAA) in February 2000. By February 2001 the single had sold 687,000 copies in the US alone. In Canada, the single debuted and peaked at number two on the
Canadian Singles Chart. In Australia, it entered the
Australian Singles Chart at its peak of number twenty-seven, on the week dated March 12, 2000. The next week it dropped to number forty-seven. The song went down to number thirty-five next week, before dropping to number forty-four. The single stayed on the chart for ten weeks, including one re-entry at number seventy-one on the week dated May 20, 2000. In the Wallonia region, it debuted at number thirty-five and peaked at number twenty-three three weeks after its debut. In France, the single entered the singles chart at number thirty-one, the week dated March 4, 2000. The next week it ascended to its peak of number twenty-eight. The song also peaked at number twenty-eight in Germany, forty-three in Sweden, thirty-one in Ireland, and at number seventeen in Switzerland. == Music video ==