Westchester County’s population experienced the largest numeric population increase in New York state between 2024 and 2025, according to new population estimates from the U.S. Census Bureau. It has reached 1,015,743 residents, marking an increase of 6,578 people in just one year – the highest population ever recorded for the county.
“People are choosing Westchester – not just to visit, but to live, build families and invest in their future,” said County Executive Ken Jenkins. “When we create housing opportunities and vibrant neighborhoods, people come – and they stay. This jump underscores the county’s continued growth and strength as a place to live, work and raise a family.”
Overall, the County’s population is now approximately 1.1% higher than its 2020 Census count, signaling sustained growth over the past five years. In April 2020, the U.S. Census Bureau reported that the county surpassed the million mark. In the 2020 census, Westchester’s population came in 1,004,457, an increase of 55,344 or 5.8% from 949,113 in 2010.
The population increase comes at a time when many counties across the state have experienced declines. Recent data shows that 24 counties gained population while 38 lost residents.
The estimates, released as part of the Census Bureau’s annual Population and Housing Unit Estimates program, track population changes from April 1, 2020 through July 1, 2025. Each annual release incorporates updated data on births, deaths and migration patterns to provide the most current snapshot of population trends.
