Table 2: Estimated Population, Land Area, and Population Density by County, New York State - 2021
| County | 2021 Population Estimate | 2020 Census Population | 2020 Land Area Square Miles | 2021 Population Density1 |
|---|---|---|---|---|
| New York State | ||||
| New York State | 19,857,492 | 20,108,296 | 47,123.59 | 421.39 |
| New York City | ||||
| New York City | 8,459,001 | 8,740,647 | 300.45 | 28,154.25 |
| Bronx | 1,421,089 | 1,461,125 | 42.17 | 33,697.45 |
| Kings | 2,637,486 | 2,719,044 | 69.38 | 38,016.72 |
| New York | 1,578,801 | 1,677,306 | 22.66 | 69,685.78 |
| Queens | 2,328,141 | 2,388,586 | 108.72 | 21,413.31 |
| Richmond | 493,484 | 494,586 | 57.52 | 8,578.90 |
| Rest of State | ||||
| Rest of State | 11,398,491 | 11,367,649 | 46,823.13 | 243.44 |
| Albany | 316,301 | 313,987 | 522.89 | 604.91 |
| Allegany | 46,921 | 47,320 | 1,029.44 | 45.58 |
| Broome | 198,703 | 198,126 | 705.64 | 281.59 |
| Cattaraugus | 76,650 | 76,992 | 1,308.16 | 58.59 |
| Cayuga | 75,791 | 76,198 | 691.58 | 109.59 |
| Chautauqua | 126,785 | 127,578 | 1,060.41 | 119.56 |
| Chemung | 82,830 | 83,945 | 407.33 | 203.35 |
| Chenango | 46,637 | 47,067 | 893.59 | 52.19 |
| Clinton | 79,996 | 79,761 | 1,037.75 | 77.09 |
| Columbia | 62,039 | 61,403 | 634.66 | 97.75 |
| Cortland | 46,489 | 46,750 | 498.77 | 93.21 |
| Delaware | 44,753 | 44,221 | 1,442.60 | 31.02 |
| Dutchess | 298,039 | 295,398 | 795.65 | 374.59 |
| Erie | 954,350 | 952,598 | 1,042.73 | 915.24 |
| Essex | 37,292 | 37,326 | 1,794.12 | 20.79 |
| Franklin | 47,040 | 47,565 | 1,629.30 | 28.87 |
| Fulton | 53,055 | 53,132 | 495.46 | 107.08 |
| Genesee | 57,988 | 58,313 | 492.94 | 117.64 |
| Greene | 48,493 | 47,912 | 647.16 | 74.93 |
| Hamilton | 5,114 | 5,073 | 1,717.38 | 2.98 |
| Herkimer | 60,082 | 60,024 | 1,411.54 | 42.56 |
| Jefferson | 117,680 | 116,273 | 1,268.70 | 92.76 |
| Lewis | 26,745 | 26,551 | 1,274.64 | 20.98 |
| Livingston | 61,629 | 61,728 | 631.76 | 97.55 |
| Madison | 67,397 | 67,927 | 654.85 | 102.92 |
| Monroe | 756,547 | 757,790 | 656.94 | 1,151.62 |
| Montgomery | 49,611 | 49,485 | 403.11 | 123.07 |
| Nassau | 1,391,112 | 1,390,559 | 284.54 | 4,888.95 |
| Niagara | 211,891 | 212,125 | 522.35 | 405.65 |
| Oneida | 229,942 | 231,575 | 1,212.33 | 189.67 |
| Onondaga | 472,094 | 474,316 | 778.39 | 606.50 |
| Ontario | 112,660 | 112,327 | 644.08 | 174.92 |
| Orange | 404,997 | 401,088 | 812.32 | 498.57 |
| Orleans | 39,711 | 40,225 | 391.26 | 101.49 |
| Oswego | 118,124 | 117,440 | 951.65 | 124.13 |
| Otsego | 60,758 | 58,377 | 1,001.74 | 60.65 |
| Putnam | 98,176 | 97,632 | 230.20 | 426.48 |
| Rensselaer | 160,740 | 160,900 | 652.46 | 246.36 |
| Rockland | 339,256 | 337,394 | 173.44 | 1,956.00 |
| St Lawrence | 108,410 | 108,554 | 2,679.52 | 40.46 |
| Saratoga | 237,962 | 235,794 | 810.00 | 293.78 |
| Schenectady | 160,214 | 159,315 | 204.58 | 783.13 |
| Schoharie | 30,152 | 29,752 | 621.82 | 48.49 |
| Schuyler | 17,800 | 17,863 | 328.34 | 54.21 |
| Seneca | 33,576 | 33,747 | 323.70 | 103.73 |
| Steuben | 93,105 | 93,314 | 1,390.51 | 66.96 |
| Suffolk | 1,533,118 | 1,521,950 | 911.17 | 1,682.57 |
| Sullivan | 79,694 | 78,605 | 968.15 | 82.32 |
| Tioga | 48,087 | 48,352 | 518.77 | 92.69 |
| Tompkins | 106,044 | 99,784 | 474.64 | 223.42 |
| Ulster | 183,704 | 181,627 | 1,124.24 | 163.40 |
| Warren | 65,773 | 65,618 | 867.22 | 75.84 |
| Washington | 60,975 | 61,202 | 831.17 | 73.36 |
| Wayne | 91,201 | 91,193 | 603.83 | 151.04 |
| Westchester | 999,607 | 1,001,431 | 430.72 | 2,320.77 |
| Wyoming | 40,017 | 40,427 | 592.75 | 67.51 |
| Yates | 24,634 | 24,720 | 338.14 | 72.85 |
1 Population per square mile.
