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ST PATRICK GNS

Roll number: 19114T Ballyroan, Rathfarnham, Dublin 16

School details

Address: Ballyroan, Rathfarnham, Dublin 16 (D16XK80)
Email: [email protected]
Phone: 014946566
Principal: Anna Jennings
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: Rathfarnham

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

23.35

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	431	15	28.73	33	7
2007/08	424	17	24.94	29	0
2008/09	438	17	25.76	31	3
2009/10	435	17	25.59	31	4
2010/11	456	17	26.82	30	2
2011/12	468	17	27.53	32	6
2012/13	468	18	26.00	32	3
2013/14	496	18	27.56	33	3
2014/15	513	20	25.65	33	2
2015/16	516	20	25.80	31	3
2016/17	539	20	26.95	33	9
2017/18	568	21	27.05	31	3
2019/20	562	21	26.76	31	5
2020/21	560	21	26.67	31	6
2021/22	534	22	24.27	30	2
2022/23	518	22	23.55	30	4
2023/24	514	22	23.36	30	1
2024/25	473	21	22.52	30	1
2025/26	467	20	23.35	30	1

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1975/76: 942 in 1974/75 → 992, +50 pupils.
Biggest loss in a single year: 1993/94: 820 in 1982/83 → 670, -150 pupils.
Largest single-class increase: Senior Infants in 2023/24 (96 → 118, +22).
Largest single-class decrease: Junior Infants in 2024/25 (98 → 72, -26).
Largest cohort-step gain: JI → SI in 2024/25 (98 → 102, +4).
Largest cohort-step loss: SI → 1st in 2021/22 (118 → 49, -69).
Overall: 942 (1974/75) → 472 (2025/26), -470.

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	72	117	98.8	6
Senior Infants	76	118	104.2	6
1st Class	46	56	50.3	6
2nd Class	43	58	50.7	6
3rd Class	43	60	49.0	6
4th Class	41	59	50.0	6
5th Class	43	62	54.7	6
6th Class	47	62	57.2	6
Total	407	992	601.8	42

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 2020/21 115

SI 2021/22 115

-67

1st 2022/23 48

-1

2nd 2023/24 47

-4

3rd 2024/25 43

-2

4th 2025/26 41

Cohort 2021/22

JI 2021/22 100

-4

SI 2022/23 96

-50

1st 2023/24 46

-3

2nd 2024/25 43

3rd 2025/26 45

Cohort 2022/23

JI 2022/23 117

SI 2023/24 118

-64

1st 2024/25 54

2nd 2025/26 57

Cohort 2023/24

JI 2023/24 98

SI 2024/25 102

-53

1st 2025/26 49

Cohort 2024/25

JI 2024/25 72

SI 2025/26 76

Cohort 2025/26

JI 2025/26 91

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	709	233	–	–	–	–	–	–	–	–	942
1975/76	–	–	–	–	–	–	–	–	–	–	992
1976/77	768	204	–	–	–	–	–	–	–	–	972
1977/78	777	169	–	–	–	–	–	–	–	–	946
1978/79	787	169	–	–	–	–	–	–	–	–	956
1979/80	809	127	–	–	–	–	–	–	–	–	936
1980/81	772	118	–	–	–	–	–	–	–	–	890
1981/82	737	111	–	–	–	–	–	–	–	–	848
1982/83	703	117	–	–	–	–	–	–	–	–	820
1993/94	560	110	–	–	–	–	–	–	–	–	670
1994/95	557	103	–	–	–	–	–	–	–	–	660
1995/96	549	101	–	–	–	–	–	–	–	–	650
1996/97	534	106	–	–	–	–	–	–	–	–	640
1997/98	499	105	–	–	–	–	–	–	–	–	604
1998/99	469	99	–	–	–	–	–	–	–	–	568
1999/00	429	86	–	–	–	–	–	–	–	–	515
2000/01	404	79	–	–	–	–	–	–	–	–	483
2001/02	390	93	–	–	–	–	–	–	–	–	483
2002/03	380	92	–	–	–	–	–	–	–	–	472
2003/04	360	81	–	–	–	–	–	–	–	–	441
2004/05	340	79	–	–	–	–	–	–	–	–	419
2005/06	319	88	–	–	–	–	–	–	–	–	407
2006/07	332	99	–	–	–	–	–	–	–	–	431
2007/08	329	95	–	–	–	–	–	–	–	–	424
2008/09	338	100	–	–	–	–	–	–	–	–	438
2009/10	342	93	–	–	–	–	–	–	–	–	435
2010/11	345	111	–	–	–	–	–	–	–	–	456
2011/12	352	116	–	–	–	–	–	–	–	–	468
2012/13	354	114	–	–	–	–	–	–	–	–	468
2013/14	365	131	–	–	–	–	–	–	–	–	496
2014/15	387	126	–	–	–	–	–	–	–	–	513
2015/16	391	125	–	–	–	–	–	–	–	–	516
2016/17	409	130	–	–	–	–	–	–	–	–	539
2017/18	424	144	–	–	–	–	–	–	–	–	568
2018/19	427	131	–	–	–	–	–	–	–	–	558
2019/20	438	124	–	–	–	–	–	–	–	–	562
2020/21	425	135	115	118	56	50	43	54	62	62	560
2021/22	408	126	100	115	49	58	51	44	57	60	534
2022/23	406	118	117	96	48	49	60	51	43	60	524
2023/24	404	116	98	118	46	47	52	59	53	47	520
2024/25	384	95	72	102	54	43	43	51	59	55	479
2025/26	384	88	91	76	49	57	45	41	54	59	472