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ST MARYS CONVENT

Roll number: 16112A O'Rahilly Street, Nenagh, Co. Tipperary

School details

Address: O'Rahilly Street, Nenagh, Co. Tipperary (E45DX78)
Email: [email protected]
Phone: 06731895
Principal: Peadar O'Dwyer
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Tipperary (Nr) County Council
School patron: Bishop of Killaloe
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Nenagh

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

22.20

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	388	14	27.71	30	3
2007/08	403	15	26.87	35	3
2008/09	402	16	25.12	30	2
2009/10	403	15	26.87	33	5
2010/11	416	16	26.00	32	2
2011/12	410	16	25.62	32	2
2012/13	398	16	24.88	29	0
2013/14	388	15	25.87	30	2
2014/15	384	14	27.43	31	4
2015/16	371	14	26.50	32	2
2016/17	372	14	26.57	32	5
2017/18	375	14	26.79	33	5
2019/20	374	14	26.71	33	6
2020/21	373	16	23.31	27	0
2021/22	383	15	25.53	33	2
2022/23	394	16	24.62	29	0
2023/24	375	16	23.44	29	0
2024/25	346	16	21.62	28	0
2025/26	333	15	22.20	30	1

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1978/79: 50 in 1977/78 → 636, +586 pupils.
Biggest loss in a single year: 1977/78: 621 in 1976/77 → 50, -571 pupils.
Largest single-class increase: 3rd Class in 2025/26 (40 → 57, +17).
Largest single-class decrease: 3rd Class in 2023/24 (59 → 48, -11).
Largest cohort-step gain: 2nd → 3rd in 2025/26 (49 → 57, +8).
Largest cohort-step loss: 3rd → 4th in 2023/24 (59 → 54, -5).
Overall: 606 (1974/75) → 351 (2025/26), -255.

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	29	47	38.2	6
Senior Infants	31	50	40.8	6
1st Class	35	51	43.8	6
2nd Class	41	53	45.7	6
3rd Class	40	59	49.3	6
4th Class	42	54	48.8	6
5th Class	48	55	51.8	6
6th Class	47	59	53.0	6
Total	50	636	425.0	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 40

-1

SI 2021/22 39

1st 2022/23 39

2nd 2023/24 42

-2

3rd 2024/25 40

4th 2025/26 42

Cohort 2021/22

JI 2021/22 47

SI 2022/23 50

1st 2023/24 50

-1

2nd 2024/25 49

3rd 2025/26 57

Cohort 2022/23

JI 2022/23 43

SI 2023/24 44

-3

1st 2024/25 41

2nd 2025/26 41

Cohort 2023/24

JI 2023/24 38

-3

SI 2024/25 35

1st 2025/26 35

Cohort 2024/25

JI 2024/25 29

SI 2025/26 31

Cohort 2025/26

JI 2025/26 32

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	606	–	–	–	–	–	–	–	–	–	606
1976/77	621	–	–	–	–	–	–	–	–	–	621
1977/78	25	25	–	–	–	–	–	–	–	–	50
1978/79	–	–	–	–	–	–	–	–	–	–	636
1979/80	633	–	–	–	–	–	–	–	–	–	633
1980/81	630	–	–	–	–	–	–	–	–	–	630
1981/82	626	–	–	–	–	–	–	–	–	–	626
1982/83	628	–	–	–	–	–	–	–	–	–	628
1983/84	620	–	–	–	–	–	–	–	–	–	620
1993/94	470	–	–	–	–	–	–	–	–	–	470
1994/95	448	–	–	–	–	–	–	–	–	–	448
1995/96	420	–	–	–	–	–	–	–	–	–	420
1996/97	392	–	–	–	–	–	–	–	–	–	392
1997/98	366	–	–	–	–	–	–	–	–	–	366
1998/99	363	–	–	–	–	–	–	–	–	–	363
1999/00	334	–	–	–	–	–	–	–	–	–	334
2000/01	333	–	–	–	–	–	–	–	–	–	333
2001/02	339	–	–	–	–	–	–	–	–	–	339
2002/03	355	–	–	–	–	–	–	–	–	–	355
2003/04	360	–	–	–	–	–	–	–	–	–	360
2004/05	395	–	–	–	–	–	–	–	–	–	395
2005/06	391	–	–	–	–	–	–	–	–	–	391
2006/07	404	–	–	–	–	–	–	–	–	–	404
2007/08	421	–	–	–	–	–	–	–	–	–	421
2008/09	426	–	–	–	–	–	–	–	–	–	426
2009/10	423	–	–	–	–	–	–	–	–	–	423
2010/11	435	–	–	–	–	–	–	–	–	–	435
2011/12	410	–	–	–	–	–	–	–	–	–	410
2012/13	398	–	–	–	–	–	–	–	–	–	398
2013/14	388	–	–	–	–	–	–	–	–	–	388
2014/15	384	–	–	–	–	–	–	–	–	–	384
2015/16	371	–	–	–	–	–	–	–	–	–	371
2016/17	372	–	–	–	–	–	–	–	–	–	372
2017/18	375	–	–	–	–	–	–	–	–	–	375
2018/19	370	–	–	–	–	–	–	–	–	–	370
2019/20	374	–	–	–	–	–	–	–	–	–	374
2020/21	373	–	40	46	51	43	45	49	52	47	373
2021/22	384	11	47	39	47	53	47	46	52	52	395
2022/23	382	24	43	50	39	46	59	52	50	56	406
2023/24	342	51	38	44	50	42	48	54	48	54	393
2024/25	318	46	29	35	41	49	40	50	55	50	364
2025/26	288	63	32	31	35	41	57	42	54	59	351