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TARMON N S

Roll number: 13757I Tarmon, Castlerea, Co. Roscommon

School details

Address: Tarmon, Castlerea, Co. Roscommon (F45K298)
Email: [email protected]
Phone: 0949621143
Principal: Ciarán Ó Dubhda
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Roscommon County Council
School patron: Bishop of Elphin
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Castlerea

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

27.33

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	87	4	21.75	28	0
2007/08	87	4	21.75	28	0
2008/09	87	4	21.75	27	0
2009/10	90	4	22.50	26	0
2010/11	91	4	22.75	28	0
2011/12	82	4	20.50	22	0
2012/13	88	4	22.00	26	0
2013/14	90	4	22.50	25	0
2014/15	105	4	26.25	33	1
2015/16	107	4	26.75	30	1
2016/17	113	5	22.60	28	0
2017/18	125	5	25.00	29	0
2019/20	160	6	26.67	33	2
2020/21	167	7	23.86	29	0
2021/22	195	7	27.86	33	4
2022/23	207	8	25.88	32	4
2023/24	230	8	28.75	34	5
2024/25	247	9	27.44	35	4
2025/26	246	9	27.33	36	5

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2021/22: 193 in 2020/21 → 225, +32 pupils.
Biggest loss in a single year: 1993/94: 37 in 1983/84 → 28, -9 pupils.
Largest single-class increase: 5th Class in 2023/24 (18 → 34, +16).
Largest single-class decrease: Junior Infants in 2025/26 (35 → 27, -8).
Largest cohort-step gain: SI → 1st in 2025/26 (27 → 35, +8).
Largest cohort-step loss: JI → SI in 2024/25 (30 → 27, -3).
Overall: 44 (1974/75) → 276 (2025/26), 232.

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	27	35	30.3	6
Senior Infants	22	40	30.5	6
1st Class	21	35	29.3	6
2nd Class	24	37	29.2	6
3rd Class	16	37	28.2	6
4th Class	12	37	25.0	6
5th Class	16	34	24.7	6
6th Class	16	33	23.2	6
Total	28	276	97.2	43

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 29

SI 2021/22 31

1st 2022/23 32

2nd 2023/24 32

3rd 2024/25 34

4th 2025/26 37

Cohort 2021/22

JI 2021/22 30

SI 2022/23 30

1st 2023/24 31

2nd 2024/25 31

3rd 2025/26 37

Cohort 2022/23

JI 2022/23 31

SI 2023/24 33

1st 2024/25 33

2nd 2025/26 37

Cohort 2023/24

JI 2023/24 30

-3

SI 2024/25 27

1st 2025/26 35

Cohort 2024/25

JI 2024/25 35

SI 2025/26 40

Cohort 2025/26

JI 2025/26 27

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	20	24	–	–	–	–	–	–	–	–	44
1975/76	–	–	–	–	–	–	–	–	–	–	40
1976/77	15	23	–	–	–	–	–	–	–	–	38
1977/78	12	24	–	–	–	–	–	–	–	–	36
1978/79	–	20	–	–	–	–	–	–	–	–	32
1979/80	12	23	–	–	–	–	–	–	–	–	35
1980/81	14	23	–	–	–	–	–	–	–	–	37
1981/82	16	19	–	–	–	–	–	–	–	–	35
1982/83	18	20	–	–	–	–	–	–	–	–	38
1983/84	19	18	–	–	–	–	–	–	–	–	37
1993/94	11	17	–	–	–	–	–	–	–	–	28
1994/95	14	21	–	–	–	–	–	–	–	–	35
1995/96	14	21	–	–	–	–	–	–	–	–	35
1996/97	18	23	–	–	–	–	–	–	–	–	41
1997/98	23	25	–	–	–	–	–	–	–	–	48
1998/99	32	33	–	–	–	–	–	–	–	–	65
1999/00	31	30	–	–	–	–	–	–	–	–	61
2000/01	35	33	–	–	–	–	–	–	–	–	68
2001/02	43	39	–	–	–	–	–	–	–	–	82
2002/03	36	41	–	–	–	–	–	–	–	–	77
2003/04	39	46	–	–	–	–	–	–	–	–	85
2004/05	44	53	–	–	–	–	–	–	–	–	97
2005/06	42	54	–	–	–	–	–	–	–	–	96
2006/07	41	46	–	–	–	–	–	–	–	–	87
2007/08	38	49	–	–	–	–	–	–	–	–	87
2008/09	38	49	–	–	–	–	–	–	–	–	87
2009/10	39	51	–	–	–	–	–	–	–	–	90
2010/11	41	50	–	–	–	–	–	–	–	–	91
2011/12	40	42	–	–	–	–	–	–	–	–	82
2012/13	47	41	–	–	–	–	–	–	–	–	88
2013/14	45	45	–	–	–	–	–	–	–	–	90
2014/15	47	58	–	–	–	–	–	–	–	–	105
2015/16	48	70	–	–	–	–	–	–	–	–	118
2016/17	53	72	–	–	–	–	–	–	–	–	125
2017/18	67	74	–	–	–	–	–	–	–	–	141
2018/19	70	82	–	–	–	–	–	–	–	–	152
2019/20	81	98	–	–	–	–	–	–	–	–	179
2020/21	90	103	29	22	21	26	16	12	21	20	193
2021/22	114	111	30	31	24	25	30	17	16	22	225
2022/23	120	117	31	30	32	24	26	30	18	16	237
2023/24	134	125	30	33	31	32	26	27	34	17	259
2024/25	136	140	35	27	33	31	34	27	27	33	276
2025/26	129	147	27	40	35	37	37	37	32	31	276