| County | Rank | Change (2020) ↓ | 2025 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Tompkins County | 1 | 5.93% | 105,699 | 99,778 |
| Rockland County | 2 | 4.62% | 352,978 | 337,378 |
| Otsego County | 3 | 3.71% | 60,529 | 58,366 |
| Orange County | 4 | 3.52% | 415,107 | 400,997 |
| Schenectady County | 5 | 3.04% | 164,144 | 159,294 |
| Sullivan County | 6 | 2.86% | 80,710 | 78,465 |
| Saratoga County | 7 | 2.56% | 241,847 | 235,811 |
| Albany County | 8 | 2.52% | 321,928 | 314,024 |
| Dutchess County | 9 | 1.96% | 301,702 | 295,913 |
| Westchester County | 10 | 1.45% | 1,015,968 | 1,001,489 |
| Schoharie County | 11 | 1.39% | 30,176 | 29,761 |
| Franklin County | 12 | 1.37% | 47,896 | 47,248 |
| Suffolk County | 13 | 1.35% | 1,542,789 | 1,522,175 |
| Richmond County | 14 | 1.32% | 501,650 | 495,113 |
| Putnam County | 15 | 1.23% | 98,830 | 97,628 |
| Oswego County | 16 | 1.08% | 118,721 | 117,450 |
| Ulster County | 17 | 0.98% | 183,048 | 181,277 |
| Ontario County | 18 | 0.95% | 113,419 | 112,350 |
| Nassau County | 19 | 0.59% | 1,398,824 | 1,390,584 |
| New York County | 20 | 0.51% | 1,688,099 | 1,679,602 |
| Rensselaer County | 21 | 0.47% | 161,652 | 160,888 |
| Hamilton County | 22 | 0.47% | 5,094 | 5,070 |
| Montgomery County | 23 | 0.46% | 49,716 | 49,487 |
| Livingston County | 24 | 0.45% | 61,874 | 61,596 |
| Erie County | 25 | 0.05% | 952,818 | 952,353 |
| Lewis County | 26 | 0% | 26,556 | 26,557 |
| Allegany County | 27 | -0.18% | 47,271 | 47,358 |
| Orleans County | 28 | -0.22% | 39,982 | 40,069 |
| Wayne County | 29 | -0.41% | 90,843 | 91,213 |
| Monroe County | 30 | -0.56% | 753,503 | 757,747 |
| Herkimer County | 31 | -0.72% | 59,599 | 60,031 |
| Onondaga County | 32 | -0.81% | 470,398 | 474,218 |
| Delaware County | 33 | -0.82% | 43,868 | 44,230 |
| Warren County | 34 | -0.82% | 65,068 | 65,608 |
| Broome County | 35 | -0.89% | 196,411 | 198,172 |
| Oneida County | 36 | -1.05% | 228,684 | 231,103 |
| Niagara County | 37 | -1.26% | 209,456 | 212,133 |
| Genesee County | 38 | -1.27% | 57,574 | 58,315 |
| Wyoming County | 39 | -1.38% | 39,646 | 40,201 |
| Madison County | 40 | -1.41% | 66,992 | 67,951 |
| Yates County | 41 | -1.45% | 24,361 | 24,720 |
| Steuben County | 42 | -1.48% | 91,943 | 93,321 |
| Essex County | 43 | -1.6% | 36,692 | 37,288 |
| Tioga County | 44 | -1.65% | 47,555 | 48,354 |
| Cortland County | 45 | -1.75% | 45,933 | 46,751 |
| Seneca County | 46 | -1.87% | 32,884 | 33,512 |
| Cayuga County | 47 | -2.09% | 74,559 | 76,151 |
| Queens County | 48 | -2.13% | 2,339,000 | 2,389,813 |
| Greene County | 49 | -2.2% | 46,710 | 47,761 |
| Cattaraugus County | 50 | -2.23% | 75,270 | 76,983 |
| Fulton County | 51 | -2.29% | 51,893 | 53,111 |
| Clinton County | 52 | -2.33% | 77,859 | 79,715 |
| Columbia County | 53 | -2.34% | 59,982 | 61,419 |
| Washington County | 54 | -2.39% | 59,646 | 61,106 |
| St. Lawrence County | 55 | -2.45% | 105,669 | 108,327 |
| Kings County | 56 | -2.73% | 2,642,325 | 2,716,455 |
| Jefferson County | 57 | -2.9% | 112,705 | 116,071 |
| Chenango County | 58 | -2.98% | 45,677 | 47,079 |
| Chautauqua County | 59 | -3.06% | 123,468 | 127,370 |
| Chemung County | 60 | -3.26% | 80,951 | 83,677 |
| Bronx County | 61 | -4.46% | 1,394,182 | 1,459,323 |
| Schuyler County | 62 | -5.96% | 16,796 | 17,861 |
New York's counties show varied growth patterns from 2020 to 2025. Tompkins County leads with 5.93% annualized growth, followed by Rockland County (4.62%) and Otsego County (3.71%). The largest counties are Kings County (2,642,325), Queens County (2,339,000), and New York County (1,688,099). Of the 62 counties in New York, 25 are growing while 37 have experienced population decline. Overall, counties averaged -0.36% annualized growth, with total population growing by -0.54% annually.
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