What grades does Sentinel Tech Alt School serve?

As a High school, Sentinel Tech Alt School serves students in Mattawa, WA. The school is administered by the local school district.

Where is Sentinel Tech Alt School located?

You can find Sentinel Tech Alt School in Mattawa, WA.

What is the student-teacher ratio at Sentinel Tech Alt School?

At Sentinel Tech Alt School, there are approximately 34 students for every teacher.

What schools are in Mattawa, WA?

Sentinel Tech Alt School is among the schools serving Mattawa, WA. The school is part of the local school system.

WAHighCSICalendar available · 75 events · Auto-updating

Sentinel Tech Alt School — School Calendar 2026-27

High|Mattawa, Washington|Wahluke School District

Mattawa, WA 99349

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Upcoming Events

Aug

Sat

FUA - HS 🏐 - All-American Volleyball Skills CampEvent

Aug

Mon

FUA - Old Man BasketballEvent

Aug

Tue

Wahluke School District Board MeetingEvent

Aug

Wed

FUA - Old Man BasketballEvent

Aug

Thu

First Day of School/Open HouseEvent

Confirm bus route and pickup time. Early dismissal may apply.

Aug

Mon

FUA - Old Man BasketballEvent

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Plus waste, sports, holidays, and more.

School Profile

Grades

9–12

Enrollment

Student:Teacher

34:1

Locale

Rural

District

Wahluke School District

Econ. Disadvantaged

47.1%

Phone

(509)932-4565

School Statistics

Technology & Internet Access (SY 2021-22)

Wi-Fi

Campus-wide wireless

Fiber Internet

High-speed connection

Connected devices

Staff & Support Services (SY 2021-22)

Teachers (FTE)

100% fully certified

Anti-Bullying Policy

District Finance (FY 2023)

Per-Pupil Spending

$19,002

Total current expenditure

Instruction Spending

$10,323

Per pupil, classroom only

Total Revenue/Pupil

$20,377

All funding sources

Funding Sources

Federal 24%State 70%Local 6%

District-level data from NCES F-33 Survey

Community Context

Median Home Value

$355,607

+0.7% 1yr+33.8% 5yr

Moses Lake, WA metro area

Community Need Level

High

CDC/ATSDR Social Vulnerability Index 2022

Neighborhood Indicators (Census Tract)

24.9%

Below 150% poverty line

5.2%

Unemployment rate

12.3%

Uninsured residents

20.6%

No HS diploma (25+)

Special Education (IDEA)

District-level data from IDEA Part B · Students ages 3-21 served under IDEA

Total Students Served

315

Ages 3-21 under IDEA

School-Age (6-21)

290

Receiving special ed services

Est. % of Enrollment

100%

District rate, school may vary

Disability Categories (District)

Specific Learning Disability

152 (52%)

Speech/Language Impairment

49 (17%)

Other Health Impairment

20 (7%)

Autism

19 (7%)

Intellectual Disability

11 (4%)

Source: U.S. Department of Education, IDEA Section 618 Data · District-level counts · Individual school figures may differ

Enrollment Trend (2014-2025)

Current enrollment

Growing(+350% 5yr)

Coming Up

Sat, Aug 22, 2026

FUA - HS 🏐 - All-American Volleyball Skills Camp

Event

Mon, Aug 24, 2026

FUA - Old Man Basketball

Event

Tue, Aug 25, 2026

Wahluke School District Board Meeting

Event

Full School Calendar 2026-27

Date	Event	Type	Level
Tue, Sep 1, 2026	Admin Meeting in Auditorium Admin Discipline Meeting	Event	—
Fri, Sep 4, 2026	No School Labor Day Holiday	Holiday	—
Mon, Sep 7, 2026	No School: Labor Day Holiday	Holiday	—
Tue, Sep 22, 2026	Wahluke School District Board Meeting	Event	—
Mon, Oct 12, 2026	No School: Wahluke Warrior Day	Event	—
Tue, Oct 27, 2026	Wahluke School District Board Meeting	Event	—
Wed, Nov 4, 2026	1st Quarter Ends	Event	—
Mon, Nov 9, 2026	No School: WSD Directed PD Day	Staff Day	—
Tue, Nov 10, 2026	Fall Parent-Teacher Conferences	Staff Day	—
Wed, Nov 11, 2026	No School: Veterans Day Holiday	Holiday	—
Thu, Nov 12, 2026	Fall Parent-Teacher Conferences	Staff Day	—
Fri, Nov 13, 2026	Fall Parent-Teacher Conferences	Staff Day	—
Tue, Nov 24, 2026	Wahluke School District Board Meeting	Event	—
Wed, Nov 25, 2026	Early Release: Thanksgiving Break	Break	—
Thu, Nov 26, 2026	No School: Thanksgiving Holiday	Holiday	—
Fri, Nov 27, 2026	No School: Thanksgiving Holiday	Holiday	—
Thu, Dec 10, 2026	Winter Band Concert	Event	—
Mon, Dec 21, 2026	No School: Winter Break	Break	—
Tue, Dec 22, 2026	No School: Winter Break	Break	—
Tue, Dec 22, 2026	Wahluke School District Board Meeting	Event	—
Wed, Dec 23, 2026	No School: Winter Break	Break	—
Thu, Dec 24, 2026	No School: Winter Break	Break	—
Fri, Dec 25, 2026	No School: Winter Break	Break	—
Mon, Dec 28, 2026	No School: Winter Break	Break	—
Tue, Dec 29, 2026	No School: Winter Break	Break	—
Wed, Dec 30, 2026	No School: Winter Break	Break	—
Thu, Dec 31, 2026	No School: Winter Break	Break	—
Fri, Jan 1, 2027	No School: Winter Break	Break	—
Mon, Jan 18, 2027	No School: MLK Day Holiday	Holiday	—
Tue, Jan 26, 2027	1st Semester/2nd Quarter Ends	Event	—
Tue, Jan 26, 2027	Early Release: Student's Only	half_day	—
Tue, Jan 26, 2027	Wahluke School District Board Meeting	Event	—
Tue, Feb 23, 2027	Wahluke School District Board Meeting	Event	—
Tue, Mar 23, 2027	Wahluke School District Board Meeting	Event	—
Thu, Apr 22, 2027	Winter Band Concert	Event	—
Tue, Apr 27, 2027	Wahluke School District Board Meeting	Event	—
Tue, May 25, 2027	Wahluke School District Board Meeting	Event	—
Tue, Jun 22, 2027	Wahluke School District Board Meeting	Event	—