New York Counties by Population (2025)

There are 62 counties in New York.

New York’s most populous county is Kings County, or the Brooklyn borough, with a population of 2,648,771. This represents growth of 5.49% since the 2010 census.

New York is home to many counties and/or boroughs with more than 1 million people including:

• Queens County (2,358,582)
• New York County (1,664,727)
• Suffolk County (1,492,953)
• Bronx County (1,471,160)
• Nassau County (1,369,514)

With the exception of Suffolk County (-0.12%), all of these counties have reported population growth of at least 2%.

Counties with Fewest Residents

Hamilton County is the least populated county in New York with 4,485 residents, a decline of 7.58% since the census. This is the only New York county under 15,000 people.

There are a few other counties under 30,000 people in New York including:

• Schuyler County (18,000)
• Yates County (24,955)
• Lewis County (24,955)

All of these counties — in fact, all New York counties with fewer than 100,000 people — have experienced a population decline.

Counties with Rapid Growth

Bronx County, which has the same boundaries as the Bronx borough, has experienced the most population growth since the census, increasing by 5.98% to 1,471,160. The only other counties with growth above 5% are:

• Kings County (5.49%)
• Queens County (5.49%)
• Rockland County (5.22%)

Most counties in New York have lost residents since the 2010 census. The county that has experienced the greatest decline since 2010 is Hamilton County at -7.58% growth to 4,485. Other major declines occurred in:

• Delaware County (-6.03%)
• Chenango County (-5.03%)