The break-in occurred through a window on Sunday night, according to a Foxborough police report.
Gronkowski, 28, reported the burglary to police at about 6:20 p.m. Monday, telling the responding officers he had arrived home earlier that day, according to the police report.
Gronkowski said he left for the Super Bowl -- where the Patriots lost to the Philadelphia Eagles -- on Jan. 29, and his two roommates left Massachusetts for Minneapolis on Feb. 1, police said. The roommates told the police all doors and windows were secure before leaving.
Some items were stolen from the star tight end's home, Foxborough Police William Chief Baker said, though he declined to identify them.
Authorities "consider this a routine property crime investigation from a police perspective," Baker said in a news release.
"We will have no further comment on the case until the case is solved," he added.
Los Angeles Dodgers right-fielder Yasiel Puig went through a similar experience during last year's World Series. While he was playing in Game 7 at Dodger Stadium, authorities arrived to his Los Angeles home and found a smashed window and missing property. The Dodgers lost the World Series to the Houston Astros.
ABC News' Kelly McCarthy contributed to this report.