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RATHDRUM BOYS N S

Roll number: 17265H Rathdrum, Co. Wicklow

School details

Address: Rathdrum, Co. Wicklow (A67X381)
Email: [email protected]
Phone: 040446585
Principal: Aideen Parker
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Wicklow County Council
School patron: Archbishop of Dublin
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Rathdrum

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

23.71

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	33	1
2007/08	126	5	25.20	28	0
2008/09	129	5	25.80	29	0
2009/10	136	5	27.20	35	1
2010/11	132	5	26.40	30	1
2011/12	134	5	26.80	30	2
2012/13	134	5	26.80	34	2
2013/14	130	5	26.00	32	2
2014/15	133	5	26.60	32	1
2015/16	137	5	27.40	34	1
2016/17	136	5	27.20	32	2
2017/18	130	5	26.00	30	1
2019/20	143	5	28.60	32	2
2020/21	146	6	24.33	25	0
2021/22	155	6	25.83	31	2
2022/23	151	6	25.17	29	0
2023/24	148	6	24.67	28	0
2024/25	163	6	27.17	31	2
2025/26	166	7	23.71	27	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1975/76: 141 in 1974/75 → 160, +19 pupils.
Biggest loss in a single year: 1993/94: 155 in 1983/84 → 138, -17 pupils.
Largest single-class increase: 6th Class in 2021/22 (14 → 26, +12).
Largest single-class decrease: 4th Class in 2021/22 (21 → 13, -8).
Largest cohort-step gain: SI → 1st in 2024/25 (15 → 19, +4).
Largest cohort-step loss: JI → SI in 2021/22 (17 → 16, -1).
Overall: 141 (1974/75) → 172 (2025/26), 31.

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	15	20	17.2	6
Senior Infants	15	22	17.7	6
1st Class	15	22	18.8	6
2nd Class	14	23	20.0	6
3rd Class	13	25	19.5	6
4th Class	13	26	20.0	6
5th Class	15	26	21.8	6
6th Class	14	27	20.8	6
Total	126	180	145.7	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 17

-1

SI 2021/22 16

-1

1st 2022/23 15

-1

2nd 2023/24 14

3rd 2024/25 16

4th 2025/26 17

Cohort 2021/22

JI 2021/22 20

SI 2022/23 20

1st 2023/24 21

2nd 2024/25 23

3rd 2025/26 24

Cohort 2022/23

JI 2022/23 15

SI 2023/24 15

1st 2024/25 19

2nd 2025/26 23

Cohort 2023/24

JI 2023/24 16

-1

SI 2024/25 15

1st 2025/26 17

Cohort 2024/25

JI 2024/25 19

SI 2025/26 22

Cohort 2025/26

JI 2025/26 16

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	–	141	–	–	–	–	–	–	–	–	141
1975/76	–	–	–	–	–	–	–	–	–	–	160
1976/77	–	177	–	–	–	–	–	–	–	–	177
1977/78	–	171	–	–	–	–	–	–	–	–	171
1978/79	–	174	–	–	–	–	–	–	–	–	174
1979/80	–	176	–	–	–	–	–	–	–	–	176
1980/81	–	180	–	–	–	–	–	–	–	–	180
1981/82	–	177	–	–	–	–	–	–	–	–	177
1982/83	–	169	–	–	–	–	–	–	–	–	169
1983/84	–	155	–	–	–	–	–	–	–	–	155
1993/94	–	138	–	–	–	–	–	–	–	–	138
1994/95	–	141	–	–	–	–	–	–	–	–	141
1995/96	–	133	–	–	–	–	–	–	–	–	133
1996/97	–	127	–	–	–	–	–	–	–	–	127
1997/98	–	141	–	–	–	–	–	–	–	–	141
1998/99	–	140	–	–	–	–	–	–	–	–	140
1999/00	–	133	–	–	–	–	–	–	–	–	133
2000/01	–	140	–	–	–	–	–	–	–	–	140
2001/02	–	136	–	–	–	–	–	–	–	–	136
2002/03	–	133	–	–	–	–	–	–	–	–	133
2003/04	–	137	–	–	–	–	–	–	–	–	137
2004/05	–	137	–	–	–	–	–	–	–	–	137
2005/06	–	133	–	–	–	–	–	–	–	–	133
2006/07	–	131	–	–	–	–	–	–	–	–	131
2007/08	–	126	–	–	–	–	–	–	–	–	126
2008/09	–	129	–	–	–	–	–	–	–	–	129
2009/10	–	136	–	–	–	–	–	–	–	–	136
2010/11	–	132	–	–	–	–	–	–	–	–	132
2011/12	–	134	–	–	–	–	–	–	–	–	134
2012/13	–	134	–	–	–	–	–	–	–	–	134
2013/14	–	130	–	–	–	–	–	–	–	–	130
2014/15	–	133	–	–	–	–	–	–	–	–	133
2015/16	–	137	–	–	–	–	–	–	–	–	137
2016/17	–	136	–	–	–	–	–	–	–	–	136
2017/18	–	130	–	–	–	–	–	–	–	–	130
2018/19	–	141	–	–	–	–	–	–	–	–	141
2019/20	–	143	–	–	–	–	–	–	–	–	143
2020/21	–	146	17	18	22	16	13	21	25	14	146
2021/22	–	155	20	16	19	23	17	13	21	26	155
2022/23	–	151	15	20	15	21	25	18	15	22	151
2023/24	–	153	16	15	21	14	22	26	19	15	153
2024/25	–	168	19	15	19	23	16	25	25	21	168
2025/26	–	172	16	22	17	23	24	17	26	27	172