Ranking of Delaware Cities and Places By Percentage of 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 percentage of the population of Delaware (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 8.95%. Among all Delaware cities and places with a population of 10K or higher, Bear CDP had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (15.49%), followed by Milford city (14.92%), and Dover city (11.23%).

The chart below shows the top 10 Delaware cities and places (with a population of 10K+), and the table below shows the ranking of all Delaware cities and places (with a population of 10K+).

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 Delaware Cities and Places By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Bear CDP
Milford city
Dover city
Wilmington city
Brookside CDP
Smyrna town
Middletown town
Glasgow CDP
Newark city
Hockessin CDP
Ranking of Delaware Cities and Places By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank City of Place Percentage of Population (Aged 25yrs+) (%)
1 Bear CDP 15.49
2 Milford city 14.92
3 Dover city 11.23
4 Wilmington city 10.98
5 Brookside CDP 10.96
6 Smyrna town 6.97
7 Middletown town 3.69
8 Glasgow CDP 3.52
9 Newark city 3.09
10 Hockessin CDP 2.56
11 Pike Creek Valley CDP 1.16