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.
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Related Topics: New Jersey ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
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 |