State championships
Seaford: 15 state titles
State titles and finals for Seaford, from DIAA. This is not a season record.
This covers state championship results only. It does not have season records, regular season games or playoff rounds before the final.
Source: Delaware Interscholastic Athletic Association (DIAA), State Champions History. Football scores and runners-up come from DIAA's football files; other sports list the champion only. DIAA State Champions History
Dover High game schedules and results are on Senators Sports.
State titles
| Year | Sport | Champion | Score | Runner-up | Notes | Source file |
|---|---|---|---|---|---|---|
| 2000 | Girls Cross Country, Division II | Seaford | ||||
| 1997 | Boys Basketball | Seaford | ||||
| 1993 | Baseball | Seaford | ||||
| 1992 | Girls Tennis | Seaford | ||||
| 1991 | Boys Indoor Track | Seaford | ||||
| 1991 | Girls Tennis | Seaford | Co-champions | |||
| 1986 | Baseball | Seaford | ||||
| 1986 | Girls Track, Division II | Seaford | ||||
| 1985 | Girls Track, Division II | Seaford | ||||
| 1984 | Girls Track, Division II | Seaford | ||||
| 1983 | Baseball | Seaford | ||||
| 1983 | Football, Division II | Seaford | 40-12 | Archmere | ||
| 1981 | Football, Division I | Seaford | 20-13 | William Penn | ||
| 1980 | Baseball | Seaford | ||||
| 1977 | Boys Track, Division II | Seaford | Co-champions |