Ranking of New York Counties By Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of New York (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 3,553,598. Among all New York counties, Kings County had the highest population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (473,782), followed by Queens County (461,885), and Suffolk County (274,855).
The chart below shows the top 10 New York counties, and the table below shows the ranking of all New York counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: New York ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of New York Counties By Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Kings County | 473782 |
| 2 | Queens County | 461885 |
| 3 | Suffolk County | 274855 |
| 4 | Bronx County | 267253 |
| 5 | Nassau County | 211529 |
| 6 | Erie County | 175869 |
| 7 | New York County | 156704 |
| 8 | Westchester County | 127801 |
| 9 | Monroe County | 121141 |
| 10 | Richmond County | 102905 |
| 11 | Onondaga County | 82746 |
| 12 | Orange County | 72736 |
| 13 | Dutchess County | 54838 |
| 14 | Oneida County | 49484 |
| 15 | Niagara County | 48485 |
| 16 | Rockland County | 46259 |
| 17 | Albany County | 44863 |
| 18 | Saratoga County | 40688 |
| 19 | Broome County | 40251 |
| 20 | Ulster County | 37702 |
| 21 | Rensselaer County | 31059 |
| 22 | Chautauqua County | 31002 |
| 23 | Oswego County | 29943 |
| 24 | Schenectady County | 29584 |
| 25 | St. Lawrence County | 25640 |
| 26 | Jefferson County | 24284 |
| 27 | Steuben County | 23375 |
| 28 | Wayne County | 21139 |
| 29 | Cattaraugus County | 21080 |
| 30 | Chemung County | 20455 |
| 31 | Ontario County | 20288 |
| 32 | Clinton County | 19428 |
| 33 | Putnam County | 18591 |
| 34 | Cayuga County | 17969 |
| 35 | Sullivan County | 17906 |
| 36 | Washington County | 17596 |
| 37 | Madison County | 16439 |
| 38 | Genesee County | 16063 |
| 39 | Herkimer County | 15415 |
| 40 | Fulton County | 14303 |
| 41 | Chenango County | 14001 |
| 42 | Columbia County | 13856 |
| 43 | Warren County | 13854 |
| 44 | Greene County | 13319 |
| 45 | Delaware County | 13047 |
| 46 | Franklin County | 12979 |
| 47 | Livingston County | 12917 |
| 48 | Otsego County | 12789 |
| 49 | Tioga County | 12438 |
| 50 | Montgomery County | 12202 |
| 51 | Orleans County | 12062 |
| 52 | Wyoming County | 11187 |
| 53 | Tompkins County | 10847 |
| 54 | Allegany County | 10579 |
| 55 | Essex County | 9713 |
| 56 | Cortland County | 9035 |
| 57 | Seneca County | 8166 |
| 58 | Lewis County | 8038 |
| 59 | Schoharie County | 7817 |
| 60 | Yates County | 5693 |
| 61 | Schuyler County | 4650 |
| 62 | Hamilton County | 1074 |
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