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RAITHIN AN UISCE N S

Roll number: 17604D Ratheniska, Stradbally, Co. Laois

School details

Address: Ratheniska, Stradbally, Co. Laois (R32HW50)
Email: [email protected]
Phone: 0578625148
Principal: Pauline Dunne
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Laois County Council
School patron: Bishop of Kildare & Leighlin
School type: Ordinary
School level: All-Through School
Planning area: Portlaoise

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

25.62

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	156	5	31.20	32	5
2007/08	189	7	27.00	30	3
2008/09	215	8	26.88	34	4
2009/10	220	8	27.50	32	2
2010/11	229	8	28.62	32	3
2011/12	236	8	29.50	32	4
2012/13	233	9	25.89	31	3
2013/14	234	9	26.00	32	3
2014/15	232	9	25.78	32	1
2015/16	233	9	25.89	32	3
2016/17	229	8	28.62	33	2
2017/18	225	8	28.12	33	2
2019/20	219	8	27.38	31	2
2020/21	206	8	25.75	29	0
2021/22	204	8	25.50	29	0
2022/23	201	8	25.12	29	0
2023/24	191	8	23.88	27	0
2024/25	184	8	23.00	27	0
2025/26	205	8	25.62	31	1

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2006/07: 116 in 2005/06 → 156, +40 pupils.
Biggest loss in a single year: 2020/21: 219 in 2019/20 → 206, -13 pupils.
Largest single-class increase: 5th Class in 2025/26 (22 → 31, +9).
Largest single-class decrease: 2nd Class in 2023/24 (29 → 23, -6).
Largest cohort-step gain: 3rd → 4th in 2025/26 (22 → 29, +7).
Largest cohort-step loss: SI → 1st in 2025/26 (24 → 22, -2).
Overall: 46 (1974/75) → 211 (2025/26), 165.

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	18	26	22.5	6
Senior Infants	22	28	23.8	6
1st Class	22	29	23.5	6
2nd Class	22	29	24.8	6
3rd Class	22	27	24.7	6
4th Class	21	29	26.3	6
5th Class	22	31	26.7	6
6th Class	25	29	27.2	6
Total	46	236	151.1	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 23

SI 2021/22 24

1st 2022/23 24

-1

2nd 2023/24 23

-1

3rd 2024/25 22

4th 2025/26 29

Cohort 2021/22

JI 2021/22 22

SI 2022/23 22

1st 2023/24 22

2nd 2024/25 22

3rd 2025/26 25

Cohort 2022/23

JI 2022/23 22

SI 2023/24 22

1st 2024/25 22

2nd 2025/26 26

Cohort 2023/24

JI 2023/24 24

SI 2024/25 24

-2

1st 2025/26 22

Cohort 2024/25

JI 2024/25 18

SI 2025/26 23

Cohort 2025/26

JI 2025/26 26

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	23	23	–	–	–	–	–	–	–	–	46
1975/76	–	–	–	–	–	–	–	–	–	–	60
1976/77	30	35	–	–	–	–	–	–	–	–	65
1977/78	34	43	–	–	–	–	–	–	–	–	77
1978/79	36	48	–	–	–	–	–	–	–	–	84
1979/80	36	49	–	–	–	–	–	–	–	–	85
1980/81	31	46	–	–	–	–	–	–	–	–	77
1981/82	32	43	–	–	–	–	–	–	–	–	75
1982/83	32	52	–	–	–	–	–	–	–	–	84
1993/94	59	63	–	–	–	–	–	–	–	–	122
1994/95	52	70	–	–	–	–	–	–	–	–	122
1995/96	47	68	–	–	–	–	–	–	–	–	115
1996/97	44	64	–	–	–	–	–	–	–	–	108
1997/98	44	58	–	–	–	–	–	–	–	–	102
1998/99	46	61	–	–	–	–	–	–	–	–	107
1999/00	50	56	–	–	–	–	–	–	–	–	106
2000/01	52	58	–	–	–	–	–	–	–	–	110
2001/02	49	56	–	–	–	–	–	–	–	–	105
2002/03	47	54	–	–	–	–	–	–	–	–	101
2003/04	50	55	–	–	–	–	–	–	–	–	105
2004/05	55	54	–	–	–	–	–	–	–	–	109
2005/06	59	57	–	–	–	–	–	–	–	–	116
2006/07	86	70	–	–	–	–	–	–	–	–	156
2007/08	96	93	–	–	–	–	–	–	–	–	189
2008/09	106	109	–	–	–	–	–	–	–	–	215
2009/10	108	112	–	–	–	–	–	–	–	–	220
2010/11	124	105	–	–	–	–	–	–	–	–	229
2011/12	132	104	–	–	–	–	–	–	–	–	236
2012/13	128	105	–	–	–	–	–	–	–	–	233
2013/14	123	111	–	–	–	–	–	–	–	–	234
2014/15	118	114	–	–	–	–	–	–	–	–	232
2015/16	126	107	–	–	–	–	–	–	–	–	233
2016/17	121	108	–	–	–	–	–	–	–	–	229
2017/18	114	111	–	–	–	–	–	–	–	–	225
2018/19	101	117	–	–	–	–	–	–	–	–	218
2019/20	95	124	–	–	–	–	–	–	–	–	219
2020/21	90	116	23	28	22	26	25	29	26	27	206
2021/22	97	107	22	24	29	23	26	25	29	26	204
2022/23	96	105	22	22	24	29	23	27	25	29	201
2023/24	93	98	24	22	22	23	27	21	27	25	191
2024/25	85	99	18	24	22	22	22	27	22	27	184
2025/26	111	100	26	23	22	26	25	29	31	29	211