Ranking of New Jersey Counties By Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)

Updated on September 3, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the population of New Jersey (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 608,877. Among all New Jersey counties, Essex County had the highest population (aged 25 years and above) with an educational attainment of Less than High School Diploma (76,672), followed by Hudson County (67,627), and Middlesex County (59,639).

The chart below shows the top 10 New Jersey counties, and the table below shows the ranking of all New Jersey 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 Jersey Counties By Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Essex County
Hudson County
Middlesex County
Passaic County
Union County
Bergen County
Camden County
Ocean County
Mercer County
Monmouth County
Ranking of New Jersey Counties By Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank County Number of People
1 Essex County 76672
2 Hudson County 67627
3 Middlesex County 59639
4 Passaic County 51861
5 Union County 49584
6 Bergen County 47805
7 Camden County 38904
8 Ocean County 30778
9 Mercer County 27089
10 Monmouth County 26629
11 Atlantic County 23333
12 Cumberland County 20134
13 Burlington County 19683
14 Morris County 19500
15 Somerset County 13619
16 Gloucester County 13216
17 Warren County 5349
18 Sussex County 4850
19 Salem County 4324
20 Cape May County 4282
21 Hunterdon County 3999