SEA-Tech
- Address
- 5301 Sidbury Road, Castle Hayne, NC 28429
Open in Maps → - Phone
- (910) 530-6300
- Grades served
- 9-13
- NCES school ID
- 370333003439
School calendar
New Hanover County Schools's school calendar for the year — first and last days, holidays, breaks and teacher workdays, which apply to SEA-Tech — with a printable PDF and a calendar file you can subscribe to.
View the calendar →Location and nearby schools
10 nearestLoading the map…
- Wilmington Early College High0.9 mi
- Holly Shelter Middle1.9 mi
- Castle Hayne Elementary2.0 mi
- Emma B Trask Middle2.2 mi
- Emsley A Laney High2.3 mi
- Murrayville Elementary2.5 mi
- Wrightsboro Elementary4.1 mi
- Dr Hubert Eaton Sr Elem4.9 mi
- John J Blair Elementary5.5 mi
- Ogden Elementary5.6 mi
How SEA-Tech compares
Its 2024–25 performance score of 86 against comparable schools. Percentile is the share of that group scoring lower.
Chronic absence is lower here than at 93% of the 2,482 North Carolina schools reporting it.
Performance score since 2018
Score up 12 points since 2018 (74 → 86). Met or exceeded expected growth in 6 of 6 years, exceeding it in 5. No grades were issued for 2020 or 2021.
| Year | Score | Grade | Growth | Achievement |
|---|---|---|---|---|
| 2025 | 86 | A | Exceeded | 84.8 |
| 2024 | 87 | A | Exceeded | 86.6 |
| 2023 | 82 | B | Exceeded | 80.6 |
| 2022 | 73 | B | Exceeded | 69.7 |
| 2019 | 84 | B | Exceeded | 82 |
| 2018 | 74 | B | Met | 72.1 |
Rankings and trends are calculated by Back To School NC from NC DPI report card results; NC DPI publishes each school's own figures but not its standing among peers. See New Hanover County Schools for district totals.
Student Demographics
Gender Distribution
Total Students: 227Student counts for SEA-Tech, 2024-2025, from the NCES Common Core of Data. Percentages are of 227 students and may not total 100% because of rounding.
Students
Student Population
Students Counted: 241Student indicators for SEA-Tech, 2024-2025, from the North Carolina School Report Cards. Attendance is out of the 241 students DPI counted. A student is chronically absent after missing 10% or more of the days enrolled; the other measures overlap it and each other.
Teachers
Licensing & Certification
Total Teachers: 15.9 FTETeacher figures for SEA-Tech, 2024-2025, from the North Carolina School Report Cards. Counts are full-time equivalents, not headcount. Licensing and certification percentages are each out of 15.9 FTE.
NC School Report Card
2024-2025Student performance by subject
| Subject | Grade-level proficient | Career & college ready |
|---|---|---|
| NC Math 3 | 95% | 72.4% |
| NC Math 1 | 85.7% | 60.7% |
| English II | 83.3% | 46.7% |
| Biology | 75% | 54.2% |
Grade-level proficient is levels 3–5; career and college ready is the higher bar of levels 4–5.
Achievement levels
| Subject | Not Proficient | Level 3 | Level 4 | Level 5 |
|---|---|---|---|---|
| Biology | 25% | 20.8% | 33.3% | 20.8% |
| English II | 16.7% | 36.7% | 36.7% | 10% |
| NC Math 1 | 14.3% | 25% | 53.6% | 7.1% |
| NC Math 3 | -- | 25.9% | 46.6% | 25.9% |
Academic growth
| Measure | Status | Growth index | Score |
|---|---|---|---|
| Overall | Exceeds Expected Growth | 4.12 | 90.2 |
Teachers
Reported as full-time-equivalent staff, so figures carry decimals.
| Measure | Value |
|---|---|
| Total teachers | 15.86 |
| Experienced teachers | 15.86 (100%) |
| Beginning teachers | 0 (0%) |
| Holding a standard license | 15.86 (100%) |
| Emergency or provisional licenses | 0 (0%) |
| National Board certified | 4 |
Students
| Measure | Value |
|---|---|
| Chronically absent (19 of 241) | 7.9% |
| Economically disadvantaged | 29.5% |
| English learners making progress (of 12) | 25% |
School environment
| Measure | Value |
|---|---|
| Devices per student | 0.64 |
| Library books per student | 0 |
| Students have device access | Yes |
| Devices may go home | Yes |
| Wireless access points per classroom | 1.71 |
Federal & state designations
| Designation | Applies |
|---|---|
| Low-performing school | No |
| Recurring low-performing | No |
| CSI — low performing | No |
| CSI — low graduation rate | No |
| TSI — at risk | No |
| TSI — consistently underperforming | No |
CSI is Comprehensive Support and Improvement; TSI is Targeted Support and Improvement, both federal ESSA categories.
Download this report card
SEA-Tech's 2024-2025 report card as an interactive PDF — bookmarked sections, donut and bar charts for performance, attendance and achievement levels, and the NC DPI and NCES sources cited with working links.
Other high schools in this district
All 42 schools →Career Readiness Academy at Mosley PLC
Emsley A Laney High
Eugene Ashley High
Isaac M Bear Early College High School
J. C. Roe Center
John T Hoggard High
Enrollment and staffing come from the NCES Common Core of Data (CCD), U.S. Department of Education for 2024-2025; performance, attendance and economic-need figures are the state's NC School Report Card for the same year. Contact the school to confirm current details.