Population of New York State by County, 1790 to 1990

From Empire State Development.

Population counts from the federal Decennial Census of Population. The first Census was taken in 1790 and has been taken every 10 years since that time. Population figures include total resident population as of the given date.

NOTES ON BOUNDARY CHANGES:
Bronx County
- Organized from part of New York in 1914.
Chemung County
- Part taken to form part of Schuyler in 1854.
Essex County
- Part annexed to Hamilton and part of Hamilton annexed in 1915.
Hamilton County
- Part annexed to Essex and part of Essex annexed in 1915.
Kings County
- Part of Queens annexed in 1915.
Nassau County
- Organized from part of Queens in 1899.
New York County
- Parts of Westchester annexed in 1873 and 1895; part taken to form Bronx in 1914.
Queens County
- Part taken to form Nassau in 1899; part annexed to Kings in 1915.
Schuyler County
- Organized from parts of Chemung, Steuben, and Tompkins in 1854.
Steuben County
- Part taken to form part of Schuyler in 1854.
Tompkins County
- Part taken to form part of Schuyler in 1854.
Westchester County
- Parts annexed to New York in 1873 and 1895