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S N BAILE FINN

Roll number: 15537E Ballyfin, Portlaoise, Co. Laois

School details

Address: Ballyfin, Portlaoise, Co. Laois (R32N920)
Email: [email protected]
Phone: 0578755225
Principal: Michael Moloney
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

22.44

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	147	5	29.40	35	1
2007/08	164	6	27.33	30	1
2008/09	187	7	26.71	30	3
2009/10	198	7	28.29	30	4
2010/11	197	7	28.14	30	2
2011/12	207	7	29.57	37	4
2012/13	217	8	27.12	31	4
2013/14	228	8	28.50	30	5
2014/15	228	8	28.50	30	5
2015/16	227	8	28.38	30	4
2016/17	225	8	28.12	30	3
2017/18	234	8	29.25	34	4
2019/20	233	9	25.89	30	3
2020/21	226	9	25.11	30	2
2021/22	225	9	25.00	30	1
2022/23	222	9	24.67	29	0
2023/24	213	9	23.67	29	0
2024/25	214	9	23.78	29	0
2025/26	202	9	22.44	27	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1993/94: 106 in 1982/83 → 152, +46 pupils.
Biggest loss in a single year: 1994/95: 152 in 1993/94 → 142, -10 pupils.
Largest single-class increase: Senior Infants in 2025/26 (20 → 27, +7).
Largest single-class decrease: Senior Infants in 2024/25 (27 → 20, -7).
Largest cohort-step gain: SI → 1st in 2025/26 (20 → 23, +3).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (29 → 27, -2).
Overall: 55 (1974/75) → 208 (2025/26), 153.

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	20	29	25.5	6
Senior Infants	20	29	25.3	6
1st Class	23	30	26.3	6
2nd Class	24	33	27.8	6
3rd Class	23	33	27.7	6
4th Class	24	33	27.7	6
5th Class	24	33	28.3	6
6th Class	27	33	29.3	6
Total	55	238	159.1	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 26

-1

SI 2021/22 25

1st 2022/23 25

-1

2nd 2023/24 24

3rd 2024/25 25

-1

4th 2025/26 24

Cohort 2021/22

JI 2021/22 29

SI 2022/23 29

1st 2023/24 29

2nd 2024/25 29

-2

3rd 2025/26 27

Cohort 2022/23

JI 2022/23 25

SI 2023/24 27

1st 2024/25 27

2nd 2025/26 27

Cohort 2023/24

JI 2023/24 20

SI 2024/25 20

1st 2025/26 23

Cohort 2024/25

JI 2024/25 26

SI 2025/26 27

Cohort 2025/26

JI 2025/26 27

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	24	31	–	–	–	–	–	–	–	–	55
1975/76	–	–	–	–	–	–	–	–	–	–	64
1976/77	40	24	–	–	–	–	–	–	–	–	64
1977/78	45	26	–	–	–	–	–	–	–	–	71
1978/79	49	26	–	–	–	–	–	–	–	–	75
1979/80	52	30	–	–	–	–	–	–	–	–	82
1980/81	56	30	–	–	–	–	–	–	–	–	86
1981/82	59	42	–	–	–	–	–	–	–	–	101
1982/83	64	42	–	–	–	–	–	–	–	–	106
1993/94	69	83	–	–	–	–	–	–	–	–	152
1994/95	64	78	–	–	–	–	–	–	–	–	142
1995/96	62	77	–	–	–	–	–	–	–	–	139
1996/97	65	75	–	–	–	–	–	–	–	–	140
1997/98	65	72	–	–	–	–	–	–	–	–	137
1998/99	58	69	–	–	–	–	–	–	–	–	127
1999/00	58	66	–	–	–	–	–	–	–	–	124
2000/01	61	63	–	–	–	–	–	–	–	–	124
2001/02	63	61	–	–	–	–	–	–	–	–	124
2002/03	67	64	–	–	–	–	–	–	–	–	131
2003/04	67	66	–	–	–	–	–	–	–	–	133
2004/05	66	68	–	–	–	–	–	–	–	–	134
2005/06	66	68	–	–	–	–	–	–	–	–	134
2006/07	68	79	–	–	–	–	–	–	–	–	147
2007/08	78	86	–	–	–	–	–	–	–	–	164
2008/09	86	101	–	–	–	–	–	–	–	–	187
2009/10	91	107	–	–	–	–	–	–	–	–	198
2010/11	92	105	–	–	–	–	–	–	–	–	197
2011/12	94	113	–	–	–	–	–	–	–	–	207
2012/13	95	122	–	–	–	–	–	–	–	–	217
2013/14	102	126	–	–	–	–	–	–	–	–	228
2014/15	102	126	–	–	–	–	–	–	–	–	228
2015/16	98	129	–	–	–	–	–	–	–	–	227
2016/17	98	127	–	–	–	–	–	–	–	–	225
2017/18	101	133	–	–	–	–	–	–	–	–	234
2018/19	111	127	–	–	–	–	–	–	–	–	238
2019/20	111	122	–	–	–	–	–	–	–	–	233
2020/21	108	118	26	24	30	33	29	26	28	30	226
2021/22	113	112	29	25	24	30	33	29	28	27	225
2022/23	121	101	25	29	25	24	29	33	29	28	222
2023/24	116	97	20	27	29	24	23	28	33	29	213
2024/25	120	94	26	20	27	29	25	26	28	33	214
2025/26	111	97	27	27	23	27	27	24	24	29	208