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Castleblayney Convent Infants National School

Roll number: 16319W Laurel Hill, Castleblayney, Co. Monaghan

School details

Address: Laurel Hill, Castleblayney, Co. Monaghan (A75KC57)
Email: [email protected]
Phone: 0429740517
Principal: Veronica Trehy
Ethos: Catholic
DEIS: Y
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Monaghan County Council
School patron: Bishop of Clogher
School type: Ordinary with Special Classes
School level: Junior
Planning area: Castleblaney

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

21.12

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	153	6	25.50	32	1
2007/08	168	6	28.00	29	0
2008/09	155	7	22.14	26	0
2009/10	158	6	26.33	29	0
2010/11	148	7	21.14	26	0
2011/12	147	6	24.50	26	0
2012/13	155	6	25.83	32	2
2013/14	170	7	24.29	30	1
2014/15	177	7	25.29	32	1
2015/16	164	7	23.43	32	2
2016/17	151	6	25.17	29	0
2017/18	157	6	26.17	28	0
2019/20	172	7	24.57	28	0
2020/21	173	8	21.62	33	2
2021/22	167	7	23.86	30	2
2022/23	160	7	22.86	26	0
2023/24	170	7	24.29	28	0
2024/25	169	8	21.12	25	0
2025/26	169	8	21.12	26	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1975/76: 217 in 1974/75 → 244, +27 pupils.
Biggest loss in a single year: 1993/94: 282 in 1983/84 → 213, -69 pupils.
Largest single-class increase: 1st Class in 2025/26 (50 → 77, +27).
Largest single-class decrease: Senior Infants in 2025/26 (75 → 52, -23).
Largest cohort-step gain: SI → 1st in 2021/22 (57 → 63, +6).
Largest cohort-step loss: 1st → 2nd in 2021/22 (64 → 0, -64).
Overall: 217 (1974/75) → 197 (2025/26), -20.

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	50	75	59.2	6
Senior Infants	52	75	58.2	6
1st Class	50	77	62.2	6
2nd Class	0	0	0.0	1
3rd Class	0	0	0.0	1
4th Class	0	0	0.0	1
5th Class	0	0	0.0	1
6th Class	0	0	0.0	1
Total	153	282	199.1	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 53

SI 2021/22 58

1st 2022/23 62

-62

2nd 2023/24 0

4th 2025/26 0

Cohort 2021/22

JI 2021/22 50

SI 2022/23 55

1st 2023/24 57

-57

2nd 2024/25 0

3rd 2025/26 0

Cohort 2022/23

JI 2022/23 53

-1

SI 2023/24 52

-2

1st 2024/25 50

-50

2nd 2025/26 0

Cohort 2023/24

JI 2023/24 75

SI 2024/25 75

1st 2025/26 77

Cohort 2024/25

JI 2024/25 56

-4

SI 2025/26 52

Cohort 2025/26

JI 2025/26 68

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	112	105	–	–	–	–	–	–	–	–	217
1975/76	–	–	–	–	–	–	–	–	–	–	244
1976/77	124	141	–	–	–	–	–	–	–	–	265
1977/78	130	130	–	–	–	–	–	–	–	–	260
1978/79	134	141	–	–	–	–	–	–	–	–	275
1979/80	130	147	–	–	–	–	–	–	–	–	277
1980/81	128	140	–	–	–	–	–	–	–	–	268
1981/82	127	151	–	–	–	–	–	–	–	–	278
1982/83	140	139	–	–	–	–	–	–	–	–	279
1983/84	141	141	–	–	–	–	–	–	–	–	282
1993/94	114	99	–	–	–	–	–	–	–	–	213
1994/95	111	92	–	–	–	–	–	–	–	–	203
1995/96	106	108	–	–	–	–	–	–	–	–	214
1996/97	89	113	–	–	–	–	–	–	–	–	202
1997/98	81	104	–	–	–	–	–	–	–	–	185
1998/99	84	92	–	–	–	–	–	–	–	–	176
1999/00	80	81	–	–	–	–	–	–	–	–	161
2000/01	97	85	–	–	–	–	–	–	–	–	182
2001/02	98	92	–	–	–	–	–	–	–	–	190
2002/03	98	93	–	–	–	–	–	–	–	–	191
2003/04	83	82	–	–	–	–	–	–	–	–	165
2004/05	86	67	–	–	–	–	–	–	–	–	153
2005/06	83	70	–	–	–	–	–	–	–	–	153
2006/07	77	87	–	–	–	–	–	–	–	–	164
2007/08	91	86	–	–	–	–	–	–	–	–	177
2008/09	83	84	–	–	–	–	–	–	–	–	167
2009/10	79	96	–	–	–	–	–	–	–	–	175
2010/11	71	94	–	–	–	–	–	–	–	–	165
2011/12	78	90	–	–	–	–	–	–	–	–	168
2012/13	75	101	–	–	–	–	–	–	–	–	176
2013/14	90	104	–	–	–	–	–	–	–	–	194
2014/15	87	96	–	–	–	–	–	–	–	–	183
2015/16	87	84	–	–	–	–	–	–	–	–	171
2016/17	75	82	–	–	–	–	–	–	–	–	157
2017/18	80	82	–	–	–	–	–	–	–	–	162
2018/19	85	96	–	–	–	–	–	–	–	–	181
2019/20	78	103	–	–	–	–	–	–	–	–	181
2020/21	78	104	53	57	64	–	–	–	–	–	182
2021/22	82	91	50	58	63	–	–	–	–	–	173
2022/23	86	85	53	55	62	–	–	–	–	–	171
2023/24	88	104	75	52	57	–	–	–	–	–	192
2024/25	78	114	56	75	50	–	–	–	–	–	192
2025/26	80	117	68	52	77	–	–	–	–	–	197