The massacre was the deadliest shooting at an American school since 26 people were killed in the Sandy Hook attack in Connecticut in 2012.
The Robb Elementary School in Texas, where 19 students and two teachers were gunned down last month, is to be demolished.
Salvador Ramos, a school dropout, went on a murderous rampage at the school in Uvalde in southwestern Texas last month.
The small close-knit community is so devastated by the tragedy that the decision has been taken to close the school and destroy it.
Tha mayor, Don McLaughlin, confirmed the demolition at a City of Uvalde council news conference.
“You can never ask a child to go back or teacher to go back in that school ever,” he said, adding that the date for the demolition would be set later.
The news come just hours after it was revealed there were enough armed police to stop Ramos three minutes after he entered the school.
Steven McCraw, director of the Texas Department of Public Safety, called the response an “abject failure” with “terrible decisions” made by the on-site commander.
He reiterated his previous assertion that as many as 19 officers had waited over an hour in a corridor outside classrooms before a special Border Force team entered and killed the gunman.
Nineteen children in grade four – aged 11 and 12 – and two teachers were killed in the 24 May attack.
Sandy Hook Elementary School in Newtown, Connecticut, was torn down after a gunman’s rampage in December 2012 led to the death of 26 people – 20 children between six and seven, and six adult staff members.