Schools in Sto. Domingo-San Ildefonso, SDO Ilocos Sur

By Mark Anthony Llego · Published 1 November 2026 · Updated 3 November 2026

SY 2024-25 data from DepEd as of 25 October 2025

Summary

In SY 2024-25 Sto. Domingo-San Ildefonso held 7,192 learners in its 29 schools, the fifth most of the 23 districts in Ilocos Sur. With 304 public teachers, it has the fourth most learners per teacher in public schools among those districts.

Enrollment in its schools fell 1.2% from SY 2023-24, not counting ALS: public schools fell 2.2%, while private schools grew 9.3%. Public schools hold 91% of the learners in its schools, against 85% nationally, and private schools hold 9%, against 14%.

All 27 reporting public schools have electricity, water and internet. Next on the page, the list of its 29 schools gives learners, teachers and classrooms for each one, and charts break the figures down by sector and level.

Schools: 29; No change from SY 2023-24; 28 public, 1 private
Learners: 7,192; Down 89 from SY 2023-24
Teachers: 304; Down 71 from SY 2023-24
Classrooms: 270; Down 30 from SY 2023-24

Key findings

For SY 2024-25 and all schools, whatever is chosen above.

Sto. Domingo-San Ildefonso has the 5th most learners of the 23 districts in Ilocos Sur, and the 4th most learners per teacher in public schools.
Enrollment in schools fell 1.2% from SY 2023-24 (ALS not counted); public schools fell 2.2% and private schools grew 9.3%.
Of the learners in schools, 91% are in public schools (85% nationally) and 9% in private schools (14% nationally).
The largest schools are Lussoc National High School (1,022 learners), Philippine Science High School-Ilocos Region Campus (661 learners) and Benito Soliven Academy, Inc. (660 learners).
Enrollment grew fastest at Sto. Domingo Integrated School (+16%) and fell most at San Ildefonso Central School (−19%), among schools with 100 or more learners in both years.
The most crowded public classrooms are at Sto. Tomas Elementary School, with 37 learners per classroom.
Of the 27 reporting public schools, all have electricity; all have water; all have internet.
The 27 public schools here with FY 2025 MOOE received ₱20.4 million. Across the 27 with FY 2024 MOOE and SY 2024-25 learners, FY 2024 MOOE came to ₱2,470 for each learner.

Learners

SY 2024-25: 7,192 learners.

Learners, SY 2024-25
Learners	Number
All learners	7,192
Male	3,746
Female	3,423
Not broken down by sex	23

Learners by level and sector, SY 2024-25: at least these numbers

Learners by level and sector, SY 2024-25: at least these numbers; 23 not broken down by level
Level	Public schools	Private schools	Total
Elementary	3,663	0	3,663
Junior High School	1,970	433	2,403
Senior High School	876	227	1,103

Learners by grade and sex, SY 2024-25: at least these numbers

Learners by grade and sex, SY 2024-25: at least these numbers; 23 not broken down by grade
Grade	Male	Female	Total
Kindergarten	227	181	408
Grade 1	272	218	490
Grade 2	274	203	477
Grade 3	283	251	534
Grade 4	290	339	629
Grade 5	225	228	453
Grade 6	352	320	672
Grade 7	339	353	692
Grade 8	252	256	508
Grade 9	300	296	596
Grade 10	312	295	607
Grade 11	315	241	556
Grade 12	305	242	547
Broken down by grade	3,746	3,423	7,169

Senior High School learners by track, SY 2024-25

Senior High School learners by track, SY 2024-25
Track	Learners
Academic	929
Technical-Vocational-Livelihood	197
All tracks	1,126

Indigenous peoples (IP) learners by level and sex, SY 2024-25
Level	Male	Female	Total
Kindergarten	5	4	9
Elementary	42	48	90
Junior High School	23	27	50
Senior High School	4	8	12
All	74	87	161

Schools and community learning centers

SY 2024-25: 29 schools.

Schools by sector, SY 2024-25

Schools by sector, SY 2024-25
Sector	Number
Public schools	28
Private schools	1
All	29

Schools by curricular offering, SY 2024-25

Schools by curricular offering, SY 2024-25
Offering	Number
Elementary only	22
Elementary and junior high (K to 10)	2
Junior and senior high	5

Schools by subclassification, SY 2024-25
Subclassification	Number
DepEd managed	27
DOST managed	1
Sectarian	1

School personnel

SY 2024-25: 304 teachers and 72 non-teaching personnel in public schools.

Public school personnel by type, SY 2024-25
Type	Number
Teachers	304
Non-teaching personnel	72
All personnel	376

Public school teachers by level, SY 2024-25

Public school teachers by level, SY 2024-25
Level	Teachers
Elementary	198
Junior High School	80
Senior High School	26
All teachers	304

Learners per teacher by level, public schools, SY 2024-25

Learners per teacher by level, public schools, SY 2024-25
Level	Learners per teacher
Elementary	18.5
Junior High School	24.6
Senior High School	33.7

School resources

SY 2024-25: 270 classrooms and 492 toilets in public schools.

Classrooms: 270
Seats (approximate): 6,100
Toilets: 492
Functional computers: 619
Faucets: 1,315; 1,217 with water

Classrooms, seats, toilets and computers by level, public schools, SY 2024-25: shares of each by level

Classrooms, seats, toilets and computers by level, public schools, SY 2024-25, with learners per resource
Measure	Elementary	Junior High School	Senior High School
Classrooms	202	45	23
Learners per classroom	18.1	43.8	38.1
Seats (approximate)	4,024	1,366	710
Learners per seat	0.9	1.4	1.2
Toilets	398	63	31
Learners per toilet	9.2	31.3	28.3
Functional computers	215	329	75
Learners per computer	17.0	6.0	11.7

Public schools with a water supply, by level, SY 2024-25

Public schools with a water supply, by level, SY 2024-25: number of schools
Level	With water supply	Without
Elementary	24	0
Junior High School	5	0
Senior High School	3	0

Public schools by electricity supply and level, SY 2024-25

Public schools by electricity supply and level, SY 2024-25: number of schools
Level	Grid supply	Grid and off-grid supply
Elementary	22	2
Junior High School	5	0
Senior High School	3	0

Public schools with internet access, by level, SY 2024-25

Public schools with internet access, by level, SY 2024-25: number of schools
Level	With internet access	Without
Elementary	24	0
Junior High School	5	0
Senior High School	2	1

Toilets in public schools by type, SY 2024-25

Toilets in public schools by type, SY 2024-25
Type	Toilets
Female	101
Male	89
Shared	285
For persons with disabilities	17
All toilets	492

Faucets in public schools, with and without water, SY 2024-25

Faucets in public schools, with and without water, SY 2024-25
Faucets	Number
With water	1,217
Without water	98
All faucets	1,315

Public schools with each facility, SY 2024-25
Facility	Schools
Entrance Gate	26
School Garden	26
Exit Gate	23
Offices	22
Playground	22
Canteen	20
Permanent Perimeter Fence	17
Clinic	16
Covered Court	16
Home Economic Room	16
Library/Learning Resource Center	13
Computer Room	12
Temporary Perimeter Fence	12
Paved Pathway	9
Faculty Room	7
Industrial Arts Room	7
Museum	7
Conference Room	5
Science Laboratory	5
Supply Room	5
Data File Room/Records Room	4
Roofing	3
Solar Panel	3
Bike Rack	1
Flood Marker	1
Speech Laboratory	1
Student Co-Curricular Center	1

List of schools

Every school in Sto. Domingo-San Ildefonso, SDO Ilocos Sur in DepEd's data, linked to its own page.

Schools in Sto. Domingo-San Ildefonso, SDO Ilocos Sur: 29 schools, each with its own latest school year's figures
School	Sector	Learners	Teachers	Classrooms
Belen National High School	Public	228	14	9
Benito Soliven Academy, Inc.	Private	660	Not reported	Not reported
Binalayangan Elementary School	Public	59	5	7
Bungro Elementary School	Public	125	8	8
Busiing Integrated School	Public	404	15	17
Cabaritan Elementary School	Public	150	8	8
Cabigbigaan Elementary School	Public	76	7	5
Calay-Ab Elementary School	Public	70	7	8
Cirilo Rabanal Elementary School	Public	60	4	4
Flora Elementary School	Public	120	8	10
Lagatit Elementary School	Public	198	9	8
Lao-Ingen Elementary School	Public	136	7	9
Lussoc Community School	Public	165	8	7
Lussoc National High School	Public	1,022	53	28
Nagbettedan Elementary School	Public	66	5	7
Naglaoa-An Elementary School	Public	188	8	10
Naglaoa-an National High School	Public	615	33	24
Nagtupacan Elementary School	Public	137	6	8
Nambaran Elementary School	Public	136	8	9
Padu Chico Elementary School	Public	108	7	6
Paras-Parada Elementary School	Public	149	8	0
Philippine Science High School-Ilocos Region Campus	Public	661	Not reported	Not reported
Quimmarayan Elementary School	Public	101	7	9
Sagsagat Elementary School	Public	257	11	14
San Ildefonso Central School	Public	101	8	8
Sived Elementary School	Public	128	8	8
Sto. Domingo Integrated School	Public	499	18	20
Sto. Domingo North Central School	Public	536	20	18
Sto. Tomas Elementary School	Public	37	4	1

DepEd's public report has teachers and classrooms for public schools only.

About this data

23 learners in SY 2024-25 are counted in the totals but not broken down by grade, level or sex, so those charts show at least these numbers.
Teachers, classrooms and facilities are for public schools only: DepEd's public report has them for no other schools.

The figures for Sto. Domingo-San Ildefonso, SDO Ilocos Sur exclude ALS centers, which DepEd does not assign to districts.

Each school year's figures for Sto. Domingo-San Ildefonso, SDO Ilocos Sur count the schools DepEd placed there that year. Figures come from DepEd's school data for SY 2023-24 and SY 2024-25 as of 25 October 2025. How the data was checked

Report a correction to the figures for Sto. Domingo-San Ildefonso, SDO Ilocos Sur