Officials in Rye say someone phoned in a bomb threat to the private school on Grandview Avenue sparking the evacuation around 12:50 p.m. on Monday.
Police in Rye conducted a search of the school. Authorities said nothing was found.
Investigators said that the threat was tied to a scam targeting an employee at the school.
However, Rye City School District followed police recommendations to suspend all outdoor activities in the District for the remainder of the afternoon, including after-school activities.
Officials stressed there was no cause for concern within the district and that the action was merely a precaution.
Rye Country Day School is not part of the district. It is a private school.