Editing New Castle County, Delaware (section)

===K-12 education===
; School districts<ref>{{cite web|url=https://www2.census.gov/geo/maps/DC2020/PL20/st10_de/schooldistrict_maps/c10003_new_castle/DC20SD_C10003.pdf |archive-url=https://ghostarchive.org/archive/20221009/https://www2.census.gov/geo/maps/DC2020/PL20/st10_de/schooldistrict_maps/c10003_new_castle/DC20SD_C10003.pdf |archive-date=October 9, 2022 |url-status=live|title=2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: New Castle County, DE|publisher=[[U.S. Census Bureau]]|access-date=July 19, 2022}} - [https://www2.census.gov/geo/maps/DC2020/PL20/st10_de/schooldistrict_maps/c10003_new_castle/DC20SD_C10003_SD2MS.txt Text list] - This listing only includes geographical school districts and not county-wide overlay districts.</ref>
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* [[Appoquinimink School District]]
* [[Brandywine School District]]
* [[Christina School District]]
* [[Colonial School District (Delaware)|Colonial School District]]
* [[Red Clay Consolidated School District]]
* [[Smyrna School District]]
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County-wide overlay district: [[New Castle County Vocational-Technical School District]]

In the period of de jure [[educational segregation in the United States]], K-12 students of black African descent attended [[History of African-American education|segregated schools]]. Middletown School District 120 operated [[Louis L. Redding Comprehensive High School for New Castle County]] to house high school students of black African descent during the period 1953 to 1966. Desegregation occurred after 1966.<ref>{{cite web|last=Mowery|first=Roger|url=https://archivesfiles.delaware.gov/ebooks/Delaware_School_Districts_1974.pdf|title=Delaware School District Organization and Boundaries|publisher=[[Delaware State Department of Instruction]]|place=[[Dover, Delaware]]|year=1974|page=6 (PDF p. 12/97)|access-date=2025-03-30}}</ref> Redding was the black school for the Middletown area.<ref>{{cite web|url=https://archives.delaware.gov/delaware-historical-markers/louis-l-redding-comprehensive-high-school/|title=Louis L. Redding Comprehensive High School|publisher=State of Delaware|access-date=2025-04-01}}</ref> Wilmington's segregated black high school was [[Howard High School (Delaware)|Howard High School]].<ref name=BarrishEichmann>{{cite web|last1=Barrish|first1=Cris|last2=Eichmann|first2=Mark|url=https://whyy.org:443/episodes/could-bringing-back-wilmington-high-help-fix-school-inequities/|title=Could bringing back Wilmington High help fix school inequities?|publisher=[[WHYY-TV|WHYY]]|date=2020-01-18|accessdate=2021-07-03}}</ref>

In 1978 the [[Alexis I. DuPont School District]], [[Alfred I. DuPont School District]], [[Claymont School District]], [[Conrad School District]], [[De Le Warr School District]], [[Marshallton-McKean School District]], [[Mount Pleasant School District (Delaware)|Mount Pleasant School District]], [[New Castle-Gunning Bedford School District]], [[Newark School District (Delaware)|Newark School District]], [[Stanton School District]], and [[Wilmington School District]] all merged to form the [[New Castle County School District]]. In 1981 that district was divided into the Christina, Colonial, Red Clay, and Brandywine districts.<ref name=Delgovhist>{{cite web|url=https://archives.delaware.gov/delaware-agency-histories/new-castle-county-school-district/|title=New Castle County School District|publisher=Government of Delaware|access-date=2025-04-01}}</ref>

; State-owned schools
* [[Delaware School for the Deaf]]

; Charter schools
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*[[Charter School of Wilmington]]
*[[Delaware Military Academy]]
*[[MOT Charter School]]
*[[Newark Charter School]]
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Closed:
*[[Pencader Charter High School|Pencader Charter HS]]

; Private schools
In 2010, 18.8% of the county students enrolled in K-12 schools were in private institutions.<ref>{{cite web|url=https://www.delawarepublic.org/2010-12-16/private-schools-increasing-financial-aid-to-retain-students|title=Private schools increasing financial aid to retain students |publisher=[[Delaware Public Media]]|date=2010-12-16|access-date=2025-03-30|quote=In Delaware, with the nation’s highest percentage of private school enrollment,[...]}}</ref>
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* [[Archmere Academy]]
* [[Delaware Valley Classical School]]
* [[Centreville Layton School]]
* [[Padua Academy]]
* [[Red Lion Christian Academy]]
* [[St. Andrew's School (Delaware)|St. Andrew's School]]
* [[St. Anne's Episcopal School]]
* [[St. Elizabeth High School (Delaware)|St. Elizabeth High School]]
* [[St. Mark's High School]]
* [[Salesianum School]]
* [[Sanford School]]
* [[Tatnall School]]
* [[Tower Hill School]]
* [[Ursuline Academy (Delaware)|Ursuline Academy]]
* [[Wilmington Christian School|Wilmington Christian School]]
* [[Wilmington Friends School|Wilmington Friends School]]
* [[Wilmington Montessori School|Wilmington Montessori School]]
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Closed private schools:
* [[St. Mary's School (Wilmington, Delaware)|St. Mary's]]