Ranking of Hawaii 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 Hawaii (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 7.30%. Among all Hawaii cities and places with a population of 10K or higher, Waipahu CDP had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (14.53%), followed by Kahului CDP (13.06%), and Ewa Beach CDP (12.58%).

The chart below shows the top 10 Hawaii cities and places (with a population of 10K+), and the table below shows the ranking of all Hawaii 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 Hawaii Cities and Places By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Waipahu CDP
Kahului CDP
Ewa Beach CDP
Urban Honolulu CDP
Waianae CDP
Lahaina CDP
Nanakuli CDP
Waihee-Waiehu CDP
Wahiawa CDP
Kailua CDP (Hawaii County)
Ranking of Hawaii 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 Waipahu CDP 14.53
2 Kahului CDP 13.06
3 Ewa Beach CDP 12.58
4 Urban Honolulu CDP 9.62
5 Waianae CDP 9.33
6 Lahaina CDP 9.14
7 Nanakuli CDP 8.41
8 Waihee-Waiehu CDP 8.12
9 Wahiawa CDP 8.03
10 Kailua CDP (Hawaii County) 7.93
11 Kapaa CDP 7.53
12 Halawa CDP 7.51
13 Royal Kunia CDP 7.09
14 Maili CDP 6.74
15 Kaiminani CDP 6.55
16 Kapolei CDP 6.21
17 Hawaiian Paradise Park CDP 6.05
17 Waimalu CDP 6.05
18 Hilo CDP 5.97
19 Ewa Gentry CDP 5.94
20 Kihei CDP 5.58
21 Wailuku CDP 5.06
22 Pearl City CDP 4.94
23 Mililani Town CDP 4.93
24 Waipio CDP 4.56
25 Kaneohe CDP 4.40
26 Ocean Pointe CDP 4.02
27 Waimea CDP (Hawaii County) 3.85
28 Makakilo CDP 3.84
29 Kailua CDP (Honolulu County) 2.77
30 Mililani Mauka CDP 2.68
31 East Honolulu CDP 2.60
32 Kaneohe Base CDP 1.86
33 Schofield Barracks CDP 1.61
34 Hickam Housing CDP 1.32