Home · By area · Release notes. Enrolment by planning area, local authority, school patron, county.

ST MARTIN DE PORRES N S

Roll number: 19617W Heatherview Lawn, Aylesbury, Tallaght, Dublin 24

School details

Address: Heatherview Lawn, Aylesbury, Tallaght, Dublin 24 (D24HF54)
Email: [email protected]
Phone: 014511319
Principal: Anne McMorrough
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: South Dublin County Council
School patron: Archbishop of Dublin
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Firhouse_Oldbawn

Class size history

Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.

Average class size

23.19

2025/26

Mainstream classes

2025/26

Largest class group

2025/26

Classes with 30+ pupils

2025/26

Class group metrics trend

Class group metrics by year

Year	Mainstream class pupils	Mainstream classes	Average class size	Largest class	Classes 30+
2006/07	322	12	26.83	35	4
2007/08	355	14	25.36	34	3
2008/09	382	14	27.29	33	5
2009/10	409	15	27.27	32	3
2010/11	420	15	28.00	33	6
2011/12	436	15	29.07	33	6
2012/13	447	15	29.80	33	9
2013/14	461	16	28.81	31	8
2014/15	447	17	26.29	30	6
2015/16	438	16	27.38	31	1
2016/17	457	16	28.56	33	4
2017/18	425	17	25.00	29	0
2019/20	411	16	25.69	30	2
2020/21	408	16	25.50	30	1
2021/22	398	16	24.88	29	0
2022/23	395	16	24.69	29	0
2023/24	393	16	24.56	28	0
2024/25	382	16	23.88	27	0
2025/26	371	16	23.19	27	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1993/94: 334 in 1983/84 → 516, +182 pupils.
Biggest loss in a single year: 1994/95: 516 in 1993/94 → 465, -51 pupils.
Largest single-class increase: 4th Class in 2025/26 (38 → 53, +15).
Largest single-class decrease: Junior Infants in 2025/26 (54 → 39, -15).
Largest cohort-step gain: 3rd → 4th in 2025/26 (46 → 53, +7).
Largest cohort-step loss: JI → SI in 2021/22 (55 → 48, -7).
Overall: 58 (1978/79) → 383 (2025/26), 325.

Summary statistics (class-level data)

Min / max / mean enrolment per class across the available final by-standard years.

Class	Min	Max	Mean	Years
Junior Infants	39	55	49.3	6
Senior Infants	44	53	48.3	6
1st Class	40	53	46.7	6
2nd Class	36	54	46.5	6
3rd Class	36	59	49.7	6
4th Class	38	58	51.0	6
5th Class	44	56	51.0	6
6th Class	46	56	51.5	6
Total	58	516	357.2	39

Total enrolment over time

Total and gender trends use historical records where available. Class-level data starts in 2020/21.

Enrolment by gender over time

Enrolment by class over time

Cohort progression

Base cohort:

Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).

Cohort 2020/21

JI 2020/21 55

-7

SI 2021/22 48

-1

1st 2022/23 47

2nd 2023/24 49

-3

3rd 2024/25 46

4th 2025/26 53

Cohort 2021/22

JI 2021/22 51

SI 2022/23 53

1st 2023/24 53

2nd 2024/25 53

3rd 2025/26 55

Cohort 2022/23

JI 2022/23 46

SI 2023/24 47

-3

1st 2024/25 44

-2

2nd 2025/26 42

Cohort 2023/24

JI 2023/24 51

-4

SI 2024/25 47

1st 2025/26 51

Cohort 2024/25

JI 2024/25 54

-3

SI 2025/26 51

Cohort 2025/26

JI 2025/26 39

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1978/79	–	–	–	–	–	–	–	–	–	–	58
1979/80	55	61	–	–	–	–	–	–	–	–	116
1980/81	67	96	–	–	–	–	–	–	–	–	163
1981/82	105	110	–	–	–	–	–	–	–	–	215
1982/83	134	144	–	–	–	–	–	–	–	–	278
1983/84	160	174	–	–	–	–	–	–	–	–	334
1993/94	238	278	–	–	–	–	–	–	–	–	516
1994/95	225	240	–	–	–	–	–	–	–	–	465
1995/96	209	211	–	–	–	–	–	–	–	–	420
1996/97	195	193	–	–	–	–	–	–	–	–	388
1997/98	183	177	–	–	–	–	–	–	–	–	360
1998/99	169	172	–	–	–	–	–	–	–	–	341
1999/00	149	168	–	–	–	–	–	–	–	–	317
2000/01	137	169	–	–	–	–	–	–	–	–	306
2001/02	126	150	–	–	–	–	–	–	–	–	276
2002/03	114	154	–	–	–	–	–	–	–	–	268
2003/04	111	166	–	–	–	–	–	–	–	–	277
2004/05	124	181	–	–	–	–	–	–	–	–	305
2005/06	107	181	–	–	–	–	–	–	–	–	288
2006/07	140	182	–	–	–	–	–	–	–	–	322
2007/08	162	193	–	–	–	–	–	–	–	–	355
2008/09	184	198	–	–	–	–	–	–	–	–	382
2009/10	203	214	–	–	–	–	–	–	–	–	417
2010/11	209	218	–	–	–	–	–	–	–	–	427
2011/12	226	210	–	–	–	–	–	–	–	–	436
2012/13	229	218	–	–	–	–	–	–	–	–	447
2013/14	237	224	–	–	–	–	–	–	–	–	461
2014/15	218	229	–	–	–	–	–	–	–	–	447
2015/16	225	213	–	–	–	–	–	–	–	–	438
2016/17	230	227	–	–	–	–	–	–	–	–	457
2017/18	211	214	–	–	–	–	–	–	–	–	425
2018/19	204	206	–	–	–	–	–	–	–	–	410
2019/20	191	220	–	–	–	–	–	–	–	–	411
2020/21	196	218	55	44	45	54	59	54	48	53	414
2021/22	185	219	51	48	40	45	54	58	56	46	404
2022/23	195	211	46	53	47	36	48	54	55	56	406
2023/24	201	203	51	47	53	49	36	49	54	54	404
2024/25	201	193	54	47	44	53	46	38	49	52	394
2025/26	196	187	39	51	51	42	55	53	44	48	383