For the 2026 school year, there are 18 private schools belonging to National Association of Independent Schools (NAIS) serving 5,890 students in Delaware. You can also find more schools membership associations in Delaware.
The top-ranked private schools belonging to National Association of Independent Schools (NAIS) in Delaware include Ursuline Academy, Wilmington Friends School, and Sanford School.
The average tuition cost is $31,318, which is higher than the Delaware private school average tuition cost of $16,213.
Top-Ranked ²ÝÁñÉçÇø Schools Belonging to National Association of Independent Schools (NAIS) in Delaware (2026)
School
Location
Quick Facts
Centreville Layton School ![Centreville Layton School Photo - Beautiful campus]( "Centreville Layton School Photo - Beautiful campus")
Alternative School
6201 Kennett Pike
Wilmington, DE 19807
(302) 571-0230
Wilmington, DE 19807
(302) 571-0230
Gr: K-12 | 97 students Avg. class size: 8 students Sports: 6 Tuition & acceptance rate listed
101 School Road
Wilmington, DE 19803
(302) 576-2900
Wilmington, DE 19803
(302) 576-2900
Gr: NS-12 | 709 students Avg. class size: 12 students Sports: 14 | Extracurrculars: 39 Tuition listed
101 Garden Of Eden Rd
Wilmington, DE 19803
(302) 478-5026
Wilmington, DE 19803
(302) 478-5026
Gr: K-5 | 35 students Avg. class size: 11 students Tuition & acceptance rate listed
3600 Philadelphia Pike
Claymont, DE 19703
(302) 798-6632
Claymont, DE 19703
(302) 798-6632
Gr: 9-12 | 469 students Avg. class size: 15 students Sports: 20 | Extracurrculars: 38 Tuition listed
1300 Paper Mill Road
Newark, DE 19711
(302) 239-0332
Newark, DE 19711
(302) 239-0332
Gr: NS-8 | 470 students Avg. class size: 19 students Sports: 11 | Extracurrculars: 13 Tuition listed
St. Andrew's School
(Episcopal)
350 Noxontown Rd
Middletown, DE 19709
(302) 285-4231
Middletown, DE 19709
(302) 285-4231
Gr: 9-12 | 318 students Sports: 15 Tuition listed
211 Silver Lake Road
Middletown, DE 19709
(302) 378-3179
Middletown, DE 19709
(302) 378-3179
Gr: NS-8 | 294 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 8 Tuition & acceptance rate listed
2501 Pike Creek Road
Wilmington, DE 19808
(302) 757-8721
Wilmington, DE 19808
(302) 757-8721
Gr: 9-12 | 716 students Avg. class size: 20 students Sports: 17 | Extracurrculars: 34 Tuition listed
6900 Lancaster Pike
Hockessin, DE 19707
(302) 235-6503
Hockessin, DE 19707
(302) 235-6503
Gr: NS-12 | 703 students Avg. class size: 13 students Sports: 16 Tuition listed
1501 Barley Mill Road
Wilmington, DE 19807
(302) 892-4296
Wilmington, DE 19807
(302) 892-4296
Gr: NS-12 | 486 students Avg. class size: 12 students Sports: 15 | Extracurrculars: 9 Tuition listed
2813 W 17th Street
Wilmington, DE 19806
(302) 575-0550
Wilmington, DE 19806
(302) 575-0550
Gr: NS-12 | 849 students Avg. class size: 15 students Sports: 17 | Extracurrculars: 24 Tuition & acceptance rate listed
1106 Pennsylvania Avenue
Wilmington, DE 19806
(302) 658-7158
Wilmington, DE 19806
(302) 658-7158
Gr: PK-12 | 441 students Avg. class size: 14 students Sports: 15 Tuition & acceptance rate listed
Coopers Corner School
(Amish)
2183 Honeysuckle Rd
Camden Wyoming, DE 19934
(302) 674-2374
Camden Wyoming, DE 19934
(302) 674-2374
Gr: 1-8 | 25 students
401 Phillips Avenue
Newark, DE 19711
(302) 368-7772
Newark, DE 19711
(302) 368-7772
Gr: K-8 | 63 students Avg. class size: 10 students Extracurrculars: 7 Tuition & acceptance rate listed
208 Woodlawn Road
Wilmington, DE 19803
(302) 478-1740
Wilmington, DE 19803
(302) 478-1740
Gr: K-8 Avg. class size: 8 students Sports: 7 | Extracurrculars: 9 Tuition listed
Rose Valley School
(Amish)
361 Rose Valley School Rd
Dover, DE 19904
(302) 734-7647
Dover, DE 19904
(302) 734-7647
Gr: 1-8 | 30 students
Southern Meadow School
(Amish)
2008 Jebb Rd
Camden Wyoming, DE 19934
(302) 697-2588
Camden Wyoming, DE 19934
(302) 697-2588
Gr: 1-8 | 23 students
1400 Harvey Road
Wilmington, DE 19810
(302) 475-0555
Wilmington, DE 19810
(302) 475-0555
Gr: NS-8 | 162 students Avg. class size: 13 students Sports: 2 | Extracurrculars: 13 Tuition listed
Recent Articles
Ask Current Parents What Admissions Won't Answer
Learn how to ask current private school parents revealing questions about culture, academics, communication, costs, discipline, and community life before deciding whether a school truly fits your family well.
When School Anxiety Is Really a School Fit Problem
Learn when school anxiety may signal a poor school fit, how parents can identify academic or social mismatches, and when changing private schools deserves serious consideration for families today.
Will My Child Find Their People? Evaluating School Culture
Learn how to evaluate private school culture, student belonging, friendships, teacher relationships, social dynamics, and authentic community fit so your child can find the right place to thrive and connect.
