Blandford Elementary School in Rowland Heights may have set a record for the number of twins on campus at one time.
The school of only 673 students has 14 sets of twins.
Aida Lugo, the office assistant, noticed the unusual number of pairs a year ago when there were only 10 sets.
Local news from across Southern California
"What's with it in Rowland Heights? Is it something in the water?" she joked.
The school has an unusually close student body, given the plethora of pairs.
It has a stellar academic reputation with a waiting list to enroll, but school administrators noted there are no two-for-one deals.