Here’s where people are moving — and leaving — in Mass., according to new U.S. Census data

Boston had the largest population decline in the state last year, while Everett and Worcester saw the largest gains, according to a recent release US Census data.

The city lost 1,338 residents last year, bringing Boston’s population to 672,973. Since 2020, the city’s population has decreased by 5,644 people, a continuation of the broader post-pandemic trend of residents leaving the city.

But Boston was not alone in seeing a mass exodus of residents. Of the 58 Massachusetts communities included in census estimates, 31 saw a population decline between 2024 and 2025, while 27 added additional residents.

Everett had the largest increase, with a population increase of 2,362 residents, followed by Worcester, which added 1,916 people, according to the data.

Other communities that saw gains included Quincy, Revere and Woburn, while cities like Springfield, Brockton and Lowell also saw declines.

Housing costs and lack of immigration are driving factors for Boston’s declining population. According to For Boston Business Journal. Rising rent and real estate prices are pushing residents out of expensive cities in search of a cheaper life, and federal policy has slowed the migration that would otherwise bring people to certain areas.

Researchers have pointed to immigration as the primary force behind population growth in Massachusetts. UMass Amherst analysis Nearly 90,000 immigrants moved to Massachusetts that year, while about 27,500 domestic immigrants moved to other parts of the country, 2024 Census data found.

According to A UMass analysis From the most recent census data, population growth in the state last year occurred at a significantly slower pace than in previous years. Massachusetts’ population increased by 15,500 people, or just 0.2 percent, down from growth of about 1 percent during the previous year.