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S N AN GLEANN DUIBH

Roll number: 18626S Kiltoom, Athlone, Co. Roscommon

School details

Address: Kiltoom, Athlone, Co. Roscommon (N37YV82)
Email: [email protected]
Phone: 0906489317
Principal: Fiona Murray
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
School level: All-Through School
Planning area: Athlone

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

24.50

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	112	4	28.00	30	2
2007/08	116	4	29.00	30	1
2008/09	115	5	23.00	25	0
2009/10	102	5	20.40	30	1
2010/11	105	4	26.25	30	1
2011/12	105	4	26.25	31	1
2012/13	102	4	25.50	32	1
2013/14	105	4	26.25	32	1
2014/15	115	4	28.75	31	2
2015/16	120	5	24.00	26	0
2016/17	123	5	24.60	26	0
2017/18	127	5	25.40	33	1
2019/20	134	5	26.80	30	1
2020/21	140	5	28.00	32	1
2021/22	136	5	27.20	35	1
2022/23	137	5	27.40	31	1
2023/24	141	6	23.50	27	0
2024/25	141	6	23.50	28	0
2025/26	147	6	24.50	29	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2001/02: 68 in 2000/01 → 83, +15 pupils.
Biggest loss in a single year: 1993/94: 87 in 1983/84 → 71, -16 pupils.
Largest single-class increase: 2nd Class in 2025/26 (14 → 22, +8).
Largest single-class decrease: 1st Class in 2023/24 (21 → 14, -7).
Largest cohort-step gain: SI → 1st in 2022/23 (18 → 21, +3).
Largest cohort-step loss: 3rd → 4th in 2022/23 (16 → 14, -2).
Overall: 92 (1974/75) → 147 (2025/26), 55.

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	20	17.5	6
Senior Infants	15	21	17.5	6
1st Class	14	21	18.5	6
2nd Class	14	22	18.3	6
3rd Class	14	21	17.3	6
4th Class	14	21	17.5	6
5th Class	14	19	17.2	6
6th Class	14	19	16.5	6
Total	58	147	100.4	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 18

SI 2021/22 18

1st 2022/23 21

2nd 2023/24 21

3rd 2024/25 21

4th 2025/26 21

Cohort 2021/22

JI 2021/22 14

SI 2022/23 15

-1

1st 2023/24 14

2nd 2024/25 14

3rd 2025/26 14

Cohort 2022/23

JI 2022/23 20

SI 2023/24 21

1st 2024/25 21

2nd 2025/26 22

Cohort 2023/24

JI 2023/24 18

SI 2024/25 18

1st 2025/26 18

Cohort 2024/25

JI 2024/25 16

SI 2025/26 16

Cohort 2025/26

JI 2025/26 19

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	48	44	–	–	–	–	–	–	–	–	92
1975/76	–	–	–	–	–	–	–	–	–	–	96
1976/77	53	43	–	–	–	–	–	–	–	–	96
1977/78	58	41	–	–	–	–	–	–	–	–	99
1978/79	–	36	–	–	–	–	–	–	–	–	85
1979/80	48	38	–	–	–	–	–	–	–	–	86
1980/81	45	37	–	–	–	–	–	–	–	–	82
1981/82	45	37	–	–	–	–	–	–	–	–	82
1982/83	47	40	–	–	–	–	–	–	–	–	87
1983/84	48	39	–	–	–	–	–	–	–	–	87
1993/94	39	32	–	–	–	–	–	–	–	–	71
1994/95	34	30	–	–	–	–	–	–	–	–	64
1995/96	34	27	–	–	–	–	–	–	–	–	61
1996/97	35	23	–	–	–	–	–	–	–	–	58
1997/98	31	27	–	–	–	–	–	–	–	–	58
1998/99	34	26	–	–	–	–	–	–	–	–	60
1999/00	36	22	–	–	–	–	–	–	–	–	58
2000/01	43	25	–	–	–	–	–	–	–	–	68
2001/02	45	38	–	–	–	–	–	–	–	–	83
2002/03	41	42	–	–	–	–	–	–	–	–	83
2003/04	48	49	–	–	–	–	–	–	–	–	97
2004/05	47	52	–	–	–	–	–	–	–	–	99
2005/06	50	57	–	–	–	–	–	–	–	–	107
2006/07	55	57	–	–	–	–	–	–	–	–	112
2007/08	58	58	–	–	–	–	–	–	–	–	116
2008/09	57	58	–	–	–	–	–	–	–	–	115
2009/10	48	54	–	–	–	–	–	–	–	–	102
2010/11	49	56	–	–	–	–	–	–	–	–	105
2011/12	53	52	–	–	–	–	–	–	–	–	105
2012/13	51	51	–	–	–	–	–	–	–	–	102
2013/14	51	54	–	–	–	–	–	–	–	–	105
2014/15	56	59	–	–	–	–	–	–	–	–	115
2015/16	58	62	–	–	–	–	–	–	–	–	120
2016/17	60	63	–	–	–	–	–	–	–	–	123
2017/18	60	67	–	–	–	–	–	–	–	–	127
2018/19	67	67	–	–	–	–	–	–	–	–	134
2019/20	67	67	–	–	–	–	–	–	–	–	134
2020/21	71	69	18	17	20	16	16	17	19	17	140
2021/22	71	65	14	18	17	20	16	16	17	18	136
2022/23	73	64	20	15	21	17	19	14	16	15	137
2023/24	76	65	18	21	14	21	18	19	14	16	141
2024/25	77	64	16	18	21	14	21	18	19	14	141
2025/26	81	66	19	16	18	22	14	21	18	19	147