New York Population By County in 2021 (ACS-5Yrs)
Updated on February 28, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the total population of New York was 20.11M. Among all New York counties, Kings was the most populated county (2.71M), followed by Queens (2.39M), and then New York (1.67M).
On the other hand, the least populated counties were: Hamilton (5.07K), Schuyler (17.92K), and Yates (24.81K).
The chart and table below shows the population of each county and the percentage of New York population in each county.
You can see similar information for other states and by state for the United States.
Related Topics: New York ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates, 2021 Census.
New York Population By County in 2021
New York Population By County in 2021
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| County | Population | % of State Population |
|---|---|---|
| Albany | 314679 | 1.56 |
| Allegany | 46654 | 0.23 |
| Bronx | 1468262 | 7.30 |
| Broome | 198591 | 0.99 |
| Cattaraugus | 77211 | 0.38 |
| Cayuga | 76644 | 0.38 |
| Chautauqua | 128042 | 0.64 |
| Chemung | 84456 | 0.42 |
| Chenango | 47407 | 0.24 |
| Clinton | 80095 | 0.40 |
| Columbia | 61587 | 0.31 |
| Cortland | 46984 | 0.23 |
| Delaware | 44644 | 0.22 |
| Dutchess | 296012 | 1.47 |
| Erie | 949715 | 4.72 |
| Essex | 37501 | 0.19 |
| Franklin | 47996 | 0.24 |
| Fulton | 53588 | 0.27 |
| Genesee | 58387 | 0.29 |
| Greene | 48026 | 0.24 |
| Hamilton | 5068 | 0.03 |
| Herkimer | 60596 | 0.30 |
| Jefferson | 117634 | 0.59 |
| Kings | 2712360 | 13.48 |
| Lewis | 26681 | 0.13 |
| Livingston | 62253 | 0.31 |
| Madison | 68466 | 0.34 |
| Monroe | 757332 | 3.77 |
| Montgomery | 49539 | 0.25 |
| Nassau | 1391678 | 6.92 |
| New York | 1669127 | 8.30 |
| Niagara | 212808 | 1.06 |
| Oneida | 232034 | 1.15 |
| Onondaga | 474621 | 2.36 |
| Ontario | 112060 | 0.56 |
| Orange | 398277 | 1.98 |
| Orleans | 40588 | 0.20 |
| Oswego | 118019 | 0.59 |
| Otsego | 58952 | 0.29 |
| Putnam | 97960 | 0.49 |
| Queens | 2393104 | 11.90 |
| Rensselaer | 161125 | 0.80 |
| Richmond | 493194 | 2.45 |
| Rockland | 336485 | 1.67 |
| St. Lawrence | 108836 | 0.54 |
| Saratoga | 235010 | 1.17 |
| Schenectady | 157515 | 0.78 |
| Schoharie | 29936 | 0.15 |
| Schuyler | 17920 | 0.09 |
| Seneca | 33900 | 0.17 |
| Steuben | 94153 | 0.47 |
| Suffolk | 1522998 | 7.57 |
| Sullivan | 78230 | 0.39 |
| Tioga | 48567 | 0.24 |
| Tompkins | 105638 | 0.53 |
| Ulster | 181862 | 0.90 |
| Warren | 65692 | 0.33 |
| Washington | 61504 | 0.31 |
| Wayne | 91332 | 0.45 |
| Westchester | 999723 | 4.97 |
| Wyoming | 40679 | 0.20 |
| Yates | 24808 | 0.12 |
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