Westchester County has Highest Population Ever Recorded for the County, Largest Gain in New York State
New population estimates from the U.S. Census Bureau show Westchester County experienced the largest numeric population increase in New York State between 2024 and 2025. According to the newly released estimates, Westchester County’s population 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, and the largest gain of any county in New York State.
County Executive Ken Jenkins said: “People are choosing Westchester – not just to visit, but to live, build families and invest in their future. 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.
The population increase comes at a time when many counties across New York State are experiencing declines. Recent data shows that 24 counties gained population while 38 lost residents, further highlighting Westchester’s position as a leader in regional growth.
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.
