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St Joseph's NS

Roll number: 18561Q Rehins, Ballina, Co. Mayo

School details

Address: Rehins, Ballina, Co. Mayo (F26XY33)
Email: [email protected]
Phone: 09670093
Principal: DECLAN KYNE
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Mayo County Council
School patron: Bishop of Killala
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Ballina

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

22.11

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	170	7	24.29	28	0
2007/08	177	7	25.29	32	2
2008/09	187	8	23.38	29	0
2009/10	190	8	23.75	30	1
2010/11	185	7	26.43	36	2
2011/12	189	7	27.00	30	1
2012/13	194	7	27.71	35	3
2013/14	210	7	30.00	34	5
2014/15	211	8	26.38	34	3
2015/16	218	8	27.25	34	4
2016/17	215	8	26.88	35	4
2017/18	219	8	27.38	34	5
2019/20	230	9	25.56	34	2
2020/21	228	9	25.33	36	2
2021/22	216	9	24.00	30	1
2022/23	229	9	25.44	30	1
2023/24	217	10	21.70	31	2
2024/25	201	9	22.33	31	1
2025/26	199	9	22.11	31	1

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2013/14: 194 in 2012/13 → 210, +16 pupils.
Biggest loss in a single year: 2024/25: 234 in 2023/24 → 218, -16 pupils.
Largest single-class increase: 6th Class in 2025/26 (21 → 34, +13).
Largest single-class decrease: Senior Infants in 2024/25 (30 → 17, -13).
Largest cohort-step gain: JI → SI in 2022/23 (23 → 28, +5).
Largest cohort-step loss: JI → SI in 2024/25 (20 → 17, -3).
Overall: 95 (1974/75) → 217 (2025/26), 122.

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	30	24.0	6
Senior Infants	17	30	24.3	6
1st Class	18	31	26.3	6
2nd Class	24	34	28.3	6
3rd Class	23	30	26.8	6
4th Class	22	36	28.3	6
5th Class	24	36	29.5	6
6th Class	21	37	30.5	6
Total	95	246	175.1	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 24

SI 2021/22 24

1st 2022/23 26

2nd 2023/24 26

-2

3rd 2024/25 24

4th 2025/26 28

Cohort 2021/22

JI 2021/22 23

SI 2022/23 28

1st 2023/24 31

-2

2nd 2024/25 29

3rd 2025/26 30

Cohort 2022/23

JI 2022/23 30

SI 2023/24 30

1st 2024/25 31

2nd 2025/26 34

Cohort 2023/24

JI 2023/24 20

-3

SI 2024/25 17

1st 2025/26 18

Cohort 2024/25

JI 2024/25 23

-1

SI 2025/26 22

Cohort 2025/26

JI 2025/26 24

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	40	55	–	–	–	–	–	–	–	–	95
1975/76	–	–	–	–	–	–	–	–	–	–	101
1976/77	54	55	–	–	–	–	–	–	–	–	109
1977/78	60	54	–	–	–	–	–	–	–	–	114
1978/79	66	49	–	–	–	–	–	–	–	–	115
1979/80	63	62	–	–	–	–	–	–	–	–	125
1980/81	63	62	–	–	–	–	–	–	–	–	125
1981/82	59	79	–	–	–	–	–	–	–	–	138
1982/83	56	78	–	–	–	–	–	–	–	–	134
1983/84	55	84	–	–	–	–	–	–	–	–	139
1993/94	79	73	–	–	–	–	–	–	–	–	152
1994/95	83	72	–	–	–	–	–	–	–	–	155
1995/96	82	67	–	–	–	–	–	–	–	–	149
1996/97	83	65	–	–	–	–	–	–	–	–	148
1997/98	93	65	–	–	–	–	–	–	–	–	158
1998/99	93	66	–	–	–	–	–	–	–	–	159
1999/00	89	70	–	–	–	–	–	–	–	–	159
2000/01	87	73	–	–	–	–	–	–	–	–	160
2001/02	90	70	–	–	–	–	–	–	–	–	160
2002/03	86	72	–	–	–	–	–	–	–	–	158
2003/04	89	82	–	–	–	–	–	–	–	–	171
2004/05	93	80	–	–	–	–	–	–	–	–	173
2005/06	91	72	–	–	–	–	–	–	–	–	163
2006/07	87	83	–	–	–	–	–	–	–	–	170
2007/08	85	92	–	–	–	–	–	–	–	–	177
2008/09	90	97	–	–	–	–	–	–	–	–	187
2009/10	89	101	–	–	–	–	–	–	–	–	190
2010/11	88	97	–	–	–	–	–	–	–	–	185
2011/12	83	106	–	–	–	–	–	–	–	–	189
2012/13	86	108	–	–	–	–	–	–	–	–	194
2013/14	95	115	–	–	–	–	–	–	–	–	210
2014/15	101	110	–	–	–	–	–	–	–	–	211
2015/16	109	111	–	–	–	–	–	–	–	–	220
2016/17	110	114	–	–	–	–	–	–	–	–	224
2017/18	116	113	–	–	–	–	–	–	–	–	229
2018/19	119	126	–	–	–	–	–	–	–	–	245
2019/20	121	125	–	–	–	–	–	–	–	–	246
2020/21	114	132	24	25	27	24	29	36	31	32	246
2021/22	115	119	23	24	25	28	23	27	36	30	234
2022/23	119	126	30	28	26	29	29	22	28	37	245
2023/24	112	122	20	30	31	26	26	31	24	29	234
2024/25	108	110	23	17	31	29	24	26	31	21	218
2025/26	105	112	24	22	18	34	30	28	27	34	217