Seventy new students are walking the halls of New Canaan High School this year.

There are 1,292 students enrolled for the 2010 academic year, whereas there were 1,222 students enrolled for the 2009 academic year, according to NCHS Principal Tony Pavia.

"The freshman class accounts for most of that increase," Pavia said.

"The most significant factor is the size of the freshman class as opposed to the outgoing class," he said.

According to Pavia, last year's senior class was probably the last class to have fewer than 300 members for a while. This year's incoming freshman class is made up of about 360 students.

The increase did not come as a surprise to school administrators.

"We expected an increase of anywhere from 35 to 70," he said. "The prediction regarding enrollment was correct, we were going to go up. We were larger than was anticipated, but we did expect this."

Though the school's population grew by 5.7 percent this year, there was still a significant amount of withdrawals, Pavia said.

"It seemed like the withdrawal number was slightly larger than usual," Pavia said. "When I looked at withdrawals, I looked at the reason. The vast majority was moving out of the districts. It could be a new job location, or someone moving for other reasons, which could have been the economy."

The economy didn't seem to have a significant effect on transfers into the district, Pavia said.

"We have had transfers in from private schools, but not a significant amount," he said. "We'll still be getting people. Every week I get an inquiry from someone about moving to the district."