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S N MHANACHAIN

Roll number: 17540D Tubber, Moate, Co. Offaly

School details

Address: Tubber, Moate, Co. Offaly (N37T8Y0)
Email: [email protected]
Phone: 0906481501
Principal: Kiera Dowd
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Offaly County Council
School patron: Bishop of Meath
School type: Ordinary
School level: All-Through School
Planning area: Clara

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

25.14

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	131	5	26.20	30	1
2007/08	133	5	26.60	29	0
2008/09	145	5	29.00	30	2
2009/10	148	6	24.67	33	2
2010/11	156	6	26.00	30	1
2011/12	153	6	25.50	31	2
2012/13	180	7	25.71	30	1
2013/14	178	7	25.43	30	1
2014/15	179	7	25.57	30	1
2015/16	187	7	26.71	30	2
2016/17	179	7	25.57	31	2
2017/18	177	7	25.29	32	2
2019/20	167	7	23.86	30	1
2020/21	172	6	28.67	34	3
2021/22	175	7	25.00	31	2
2022/23	171	7	24.43	30	1
2023/24	164	7	23.43	34	1
2024/25	181	7	25.86	29	0
2025/26	176	7	25.14	32	1

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2012/13: 153 in 2011/12 → 180, +27 pupils.
Biggest loss in a single year: 2002/03: 119 in 2001/02 → 108, -11 pupils.
Largest single-class increase: 2nd Class in 2021/22 (16 → 28, +12).
Largest single-class decrease: Junior Infants in 2025/26 (29 → 14, -15).
Largest cohort-step gain: 1st → 2nd in 2022/23 (20 → 24, +4).
Largest cohort-step loss: JI → SI in 2025/26 (29 → 26, -3).
Overall: 82 (1974/75) → 176 (2025/26), 94.

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	14	29	20.3	6
Senior Infants	16	26	21.0	6
1st Class	16	25	21.3	6
2nd Class	16	28	21.2	6
3rd Class	17	27	20.5	6
4th Class	17	28	21.8	6
5th Class	17	31	23.8	6
6th Class	17	31	23.2	6
Total	61	187	126.6	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 14

SI 2021/22 16

1st 2022/23 16

2nd 2023/24 16

3rd 2024/25 17

4th 2025/26 18

Cohort 2021/22

JI 2021/22 21

-1

SI 2022/23 20

1st 2023/24 21

2nd 2024/25 21

3rd 2025/26 21

Cohort 2022/23

JI 2022/23 23

-1

SI 2023/24 22

1st 2024/25 23

-1

2nd 2025/26 22

Cohort 2023/24

JI 2023/24 21

SI 2024/25 22

1st 2025/26 23

Cohort 2024/25

JI 2024/25 29

-3

SI 2025/26 26

Cohort 2025/26

JI 2025/26 14

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	39	43	–	–	–	–	–	–	–	–	82
1975/76	–	–	–	–	–	–	–	–	–	–	76
1976/77	40	37	–	–	–	–	–	–	–	–	77
1977/78	40	36	–	–	–	–	–	–	–	–	76
1978/79	38	34	–	–	–	–	–	–	–	–	72
1979/80	37	28	–	–	–	–	–	–	–	–	65
1980/81	33	34	–	–	–	–	–	–	–	–	67
1981/82	28	33	–	–	–	–	–	–	–	–	61
1982/83	32	37	–	–	–	–	–	–	–	–	69
1983/84	30	46	–	–	–	–	–	–	–	–	76
1993/94	39	56	–	–	–	–	–	–	–	–	95
1994/95	40	56	–	–	–	–	–	–	–	–	96
1995/96	45	52	–	–	–	–	–	–	–	–	97
1996/97	48	47	–	–	–	–	–	–	–	–	95
1997/98	49	46	–	–	–	–	–	–	–	–	95
1998/99	53	49	–	–	–	–	–	–	–	–	102
1999/00	51	56	–	–	–	–	–	–	–	–	107
2000/01	59	62	–	–	–	–	–	–	–	–	121
2001/02	62	57	–	–	–	–	–	–	–	–	119
2002/03	58	50	–	–	–	–	–	–	–	–	108
2003/04	62	56	–	–	–	–	–	–	–	–	118
2004/05	65	53	–	–	–	–	–	–	–	–	118
2005/06	65	55	–	–	–	–	–	–	–	–	120
2006/07	70	61	–	–	–	–	–	–	–	–	131
2007/08	70	63	–	–	–	–	–	–	–	–	133
2008/09	73	72	–	–	–	–	–	–	–	–	145
2009/10	74	74	–	–	–	–	–	–	–	–	148
2010/11	80	76	–	–	–	–	–	–	–	–	156
2011/12	76	77	–	–	–	–	–	–	–	–	153
2012/13	85	95	–	–	–	–	–	–	–	–	180
2013/14	80	98	–	–	–	–	–	–	–	–	178
2014/15	88	91	–	–	–	–	–	–	–	–	179
2015/16	95	92	–	–	–	–	–	–	–	–	187
2016/17	91	88	–	–	–	–	–	–	–	–	179
2017/18	94	83	–	–	–	–	–	–	–	–	177
2018/19	97	81	–	–	–	–	–	–	–	–	178
2019/20	94	73	–	–	–	–	–	–	–	–	167
2020/21	94	78	14	20	25	16	17	28	31	21	172
2021/22	92	83	21	16	20	28	17	17	25	31	175
2022/23	84	87	23	20	16	24	27	17	19	25	171
2023/24	82	82	21	22	21	16	24	26	17	17	164
2024/25	91	90	29	22	23	21	17	25	26	18	181
2025/26	79	97	14	26	23	22	21	18	25	27	176