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.

Ranking of New York Counties By Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
Kings County
Queens County
Suffolk County
Bronx County
Nassau County
Erie County
New York County
Westchester County
Monroe County
Richmond County
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