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Nonprofit · EIN 26-4614065

RIVERSIDE PREPARATORY SCHOOL

Tax-exempt · ORO GRANDE, CA 92368

Financials

$40.8M$39.2M2024
Revenue Expenses · by fiscal year end
Financials of RIVERSIDE PREPARATORY SCHOOL by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$40,810,329$39,199,613$1,610,716$38,979,426$5,285,427$33,693,999
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$39,759,735
of which government grants
$39,759,735
Program service revenue
$683,968
Investment income
$366,626
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Other salaries and wages
$16,851,490
Salaries, compensation and benefits (total)
$24,284,583
Professional fundraising fees
$0
Legal fees
$24,638
Accounting fees
$29,550
Occupancy
$1,219,082
Travel
$49,103
Depreciation
$1,378,036
Program services (functional)
$32,420,203
Management and general (functional)
$6,779,410

Balance sheet and other

Total assets, start of year
$37,563,479
Total assets, end of year
$38,979,426
Total liabilities, end of year
$5,285,427
Net assets, end of year
$33,693,999
Land, buildings and equipment
$27,710,196
Net assets without donor restrictions
$33,693,999
Gross receipts
$40,810,329
Employees
0
Volunteers
0
Year formed
2009
State of legal domicile
CA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationFrom related orgsOther / benefits
DERRICK DELTONSUPERINTENDENT
Officer
10$0$275,976$35,109
SHAWN BELLASST. SUPT. HR/PERSONNEL
Officer
10$0$224,879$27,852
KYLA GONZALES-RIVERAASST. SUPT. ED SERVICES
Officer
10$0$206,926$36,511
MICHAEL HEITMANEXEC. DIR. SPECIAL ED
Key employee
10$0$180,305$35,109
MARK ANDREASENASST. SUPT. BUSINESS SERV.
Officer
10$0$208,177$3,403
FRANK JIMENEZHIGH SCHOOL PRINCIPAL
Key employee
40$0$176,508$24,133
HEATHER VENNESDIRECTOR OF CTE
Key employee
10$0$163,436$21,985
AMY BRACCOPRINCIPAL - MIDDLE SCHOOL
Key employee
40$0$165,445$19,734
JOSHUA GARCIADIRECTOR OF HR
Key employee
10$0$157,100$25,728
APRILL HALLDIRECTOR OF C&I
Key employee
40$0$158,900$21,018
NATALIE THIEMDIRECTOR OF HEALTH SERV.
Key employee
10$0$164,397$3,723
DELORES PATTERSONTRANSPORTATION DIRECTOR
Highest-paid employee
40$0$152,427$10,505
SYLVIA HOUSERASSISTANT PRINCIPAL
Highest-paid employee
40$0$130,911$27,707
PETER SNYDERMIDDLE SCHOOL ASST. PRINCIPAL
Highest-paid employee
40$0$141,651$6,849
BRANDY NEISINGERMIDDLE SCHOOL TEACHER
Highest-paid employee
40$0$141,846$1,940
5 more people on this return
NameTitleHours / weekCompensationFrom related orgsOther / benefits
DARRELL HALEASSISTANT PRINCIPAL
Highest-paid employee
40$0$140,335$1,940
MINDA STACKLEHOUSEEXEC. DIR. HR (THRU 05/2024)
Former
10$0$103,431$21,532
PAULA RAMIREZMEMBER
Trustee or director
1$0$5,821$21,804
ROBERTO GARCIA JRCLERK
Trustee or director, Officer
1$0$3,205$2,616
EDNA RODRIGUEZPRESIDENT
Trustee or director, Officer
1$0$2,113$1,854

Address and contacts

Address (IRS master file)
19900 NATIONAL TRAILS HIGHWAY, ORO GRANDE, CA 92368-0000
In care of
% KIM P MOORE PHD
Principal officer (990 for 2024)
MARK ANDREASEN, 19900 NATIONAL TRAILS HIGHWAY, ORO GRANDE, CA 92368
Signed the 990
MARK ANDREASEN, ASSISTANT SUPERINTENDENT BUS. SERV.
Phone
(760) 245-5887
Return prepared by
EIDE BAILLY LLP

Mission

TO PROVIDE EACH STUDENT WITH AN EDUCATION THAT WILL FIT THAT STUDENT'S ACADEMIC NEEDS AND WILL PROVIDE THE STUDENT WITH A HIGH ACADEMIC, RENAISSANCE EDUCATION THAT WILL MEET STATE STANDARDS AND PREPARE STUDENTS FOR HIGHER EDUCATIONAL OPPORTUNITIES AND LIFELONG LEARNING.

990 for the year ended June 30, 2025

Program accomplishments

  • A SEAT TIME TK-12 CHARTER SCHOOL, SERVING APPROXIMATELY 2,453 STUDENTS FROM THE ORO GRANDE, BARSTOW, VICTORVILLE, HESPERIA, APPLE VALLEY, PHELAN, HELENDALE, OAK HILLS, AND ADELANTO COMMUNITIES. STUDENTS PARTICIPATE IN A COLLEGE PREPARATORY PROGRAM THAT EMPHASIZES PROJECT-BASED LEARNING AND 21ST CENTURY SKILLS. BY DESIGNING AN EIGHT-HOUR INSTRUCTIONAL DAY PROGRAM FOR ALL STUDENTS, STUDENTS ARE ABLE TO EXPLORE MULTIPLE PATHWAYS AND TOPICS INCLUDING ATHLETICS, VISUAL AND PERFORMING ARTS, ADVANCED PLACEMENT, AND CIVIC LEARNING PROJECTS. CLASS SIZES ARE WELL BELOW STATE AVERAGES, ADDING TO THE PERSONALIZED LEARNING EXPERIENCES. THE ORO GRANDE ELEMENTARY SCHOOL PROGRAM IS EMBEDDED WITHIN THE RIVERSIDE PREPARATORY ELEMENTARY SCHOOL, EXPANDING THE EDUCATIONAL OPPORTUNITIES FOR ALL STUDENTS.
    Expenses $32,420,203 · revenue $683,968

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
26-4614065
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
School
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2010
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B29)
Assets (IRS master file)
$38,979,426
Income (IRS master file)
$40,810,329

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025–––IRS
990June 2024–––IRS
990June 2023$42,904,509$36,125,698$33,846,579IRS
990June 2022–––IRS
990June 2021–––IRS
990June 2020–––IRS
990June 2019–––IRS
990June 2018–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS.

Questions about RIVERSIDE PREPARATORY SCHOOL

What is the EIN of RIVERSIDE PREPARATORY SCHOOL?
The employer identification number (EIN) of RIVERSIDE PREPARATORY SCHOOL is 26-4614065.
Is RIVERSIDE PREPARATORY SCHOOL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2010.
Are donations to RIVERSIDE PREPARATORY SCHOOL tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does RIVERSIDE PREPARATORY SCHOOL file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of RIVERSIDE PREPARATORY SCHOOL due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did RIVERSIDE PREPARATORY SCHOOL last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of RIVERSIDE PREPARATORY SCHOOL?
The 990 for the year ended June 30, 2025 names MARK ANDREASEN.
Who are the officers and directors of RIVERSIDE PREPARATORY SCHOOL?
The 990 for the year ended June 30, 2025 lists 20 people; 0 received compensation from the organization.
How much revenue does RIVERSIDE PREPARATORY SCHOOL have?
On its 990 for the year ended June 30, 2025 it reported revenue of $40,810,329, expenses of $39,199,613 and total assets of $38,979,426 at year end.

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