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ST KILLIANS N S

Roll number: 19608V Mullagh, Co. Cavan

School details

Address: Mullagh, Co. Cavan (A82H4X7)
Email: [email protected]
Phone: 0469242222
Principal: Ronan MacNamara
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Cavan County Council
School patron: Bishop of Kilmore
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Virginia

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

22.14

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	250	9	27.78	31	4
2007/08	292	11	26.55	29	0
2008/09	318	12	26.50	29	0
2009/10	346	12	28.83	31	4
2010/11	346	13	26.62	31	3
2011/12	363	13	27.92	33	4
2012/13	372	13	28.62	33	6
2013/14	356	14	25.43	31	2
2014/15	353	14	25.21	30	1
2015/16	332	14	23.71	28	0
2016/17	344	13	26.46	31	2
2017/18	349	14	24.93	30	1
2019/20	347	14	24.79	30	1
2020/21	337	14	24.07	30	1
2021/22	332	14	23.71	28	0
2022/23	325	14	23.21	27	0
2023/24	325	14	23.21	27	0
2024/25	316	14	22.57	27	0
2025/26	310	14	22.14	28	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2007/08: 250 in 2006/07 → 292, +42 pupils.
Biggest loss in a single year: 2015/16: 370 in 2014/15 → 350, -20 pupils.
Largest single-class increase: Junior Infants in 2025/26 (35 → 50, +15).
Largest single-class decrease: 4th Class in 2023/24 (51 → 32, -19).
Largest cohort-step gain: 3rd → 4th in 2025/26 (37 → 43, +6).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (34 → 32, -2).
Overall: 115 (1993/94) → 328 (2025/26), 213.

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	32	50	37.0	6
Senior Infants	34	43	37.0	6
1st Class	34	45	38.2	6
2nd Class	34	47	40.3	6
3rd Class	32	50	42.0	6
4th Class	32	51	43.3	6
5th Class	33	52	45.0	6
6th Class	35	52	44.3	6
Total	88	372	257.7	33

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 32

SI 2021/22 34

1st 2022/23 34

2nd 2023/24 36

3rd 2024/25 37

4th 2025/26 43

Cohort 2021/22

JI 2021/22 33

SI 2022/23 35

1st 2023/24 36

2nd 2024/25 40

3rd 2025/26 40

Cohort 2022/23

JI 2022/23 37

SI 2023/24 37

1st 2024/25 37

2nd 2025/26 40

Cohort 2023/24

JI 2023/24 35

SI 2024/25 39

1st 2025/26 42

Cohort 2024/25

JI 2024/25 35

-1

SI 2025/26 34

Cohort 2025/26

JI 2025/26 50

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1993/94	51	64	–	–	–	–	–	–	–	–	115
1994/95	47	60	–	–	–	–	–	–	–	–	107
1995/96	48	52	–	–	–	–	–	–	–	–	100
1996/97	48	48	–	–	–	–	–	–	–	–	96
1997/98	51	46	–	–	–	–	–	–	–	–	97
1998/99	47	44	–	–	–	–	–	–	–	–	91
1999/00	43	45	–	–	–	–	–	–	–	–	88
2000/01	51	47	–	–	–	–	–	–	–	–	98
2001/02	66	53	–	–	–	–	–	–	–	–	119
2002/03	81	65	–	–	–	–	–	–	–	–	146
2003/04	76	82	–	–	–	–	–	–	–	–	158
2004/05	89	105	–	–	–	–	–	–	–	–	194
2005/06	93	116	–	–	–	–	–	–	–	–	209
2006/07	114	136	–	–	–	–	–	–	–	–	250
2007/08	143	149	–	–	–	–	–	–	–	–	292
2008/09	145	173	–	–	–	–	–	–	–	–	318
2009/10	160	186	–	–	–	–	–	–	–	–	346
2010/11	156	190	–	–	–	–	–	–	–	–	346
2011/12	171	192	–	–	–	–	–	–	–	–	363
2012/13	177	195	–	–	–	–	–	–	–	–	372
2013/14	172	196	–	–	–	–	–	–	–	–	368
2014/15	174	196	–	–	–	–	–	–	–	–	370
2015/16	168	182	–	–	–	–	–	–	–	–	350
2016/17	183	176	–	–	–	–	–	–	–	–	359
2017/18	171	196	–	–	–	–	–	–	–	–	367
2018/19	174	194	–	–	–	–	–	–	–	–	368
2019/20	173	190	–	–	–	–	–	–	–	–	363
2020/21	165	189	32	43	35	47	50	39	49	42	354
2021/22	170	180	33	34	45	34	48	50	40	48	350
2022/23	166	177	37	35	34	45	32	51	52	39	343
2023/24	163	180	35	37	36	36	45	32	52	52	343
2024/25	161	174	35	39	37	40	37	45	33	50	335
2025/26	153	175	50	34	42	40	40	43	44	35	328