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S N MUIRE

Roll number: 17091A Main Street, Blessington, Co. Wicklow

School details

Address: Main Street, Blessington, Co. Wicklow (W91YN0P)
Email: [email protected]
Phone: 045865501
Principal: Carmel Dillon
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
School level: Junior
Planning area: Blessington

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

20.82

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	536	19	28.21	35	9
2007/08	262	10	26.20	32	1
2008/09	272	10	27.20	37	2
2009/10	272	10	27.20	36	4
2010/11	271	10	27.10	36	4
2011/12	280	10	28.00	35	4
2012/13	296	10	29.60	33	6
2013/14	306	11	27.82	34	5
2014/15	331	12	27.58	31	4
2015/16	351	13	27.00	31	2
2016/17	319	13	24.54	29	0
2017/18	328	12	27.33	33	3
2019/20	273	12	22.75	26	0
2020/21	254	12	21.17	24	0
2021/22	240	10	24.00	32	4
2022/23	236	10	23.60	28	0
2023/24	242	10	24.20	30	1
2024/25	268	11	24.36	27	0
2025/26	229	11	20.82	28	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2001/02: 392 in 2000/01 → 433, +41 pupils.
Biggest loss in a single year: 2007/08: 536 in 2006/07 → 262, -274 pupils.
Largest single-class increase: Junior Infants in 2024/25 (47 → 70, +23).
Largest single-class decrease: Junior Infants in 2025/26 (70 → 50, -20).
Largest cohort-step gain: 1st → 2nd in 2024/25 (68 → 80, +12).
Largest cohort-step loss: 2nd → 3rd in 2025/26 (80 → 0, -80).
Overall: 275 (1974/75) → 235 (2025/26), -40.

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	47	70	56.0	6
Senior Infants	54	67	60.5	6
1st Class	55	68	63.0	6
2nd Class	56	80	66.3	6
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	235	536	327.1	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 59

SI 2021/22 60

1st 2022/23 65

2nd 2023/24 69

-69

3rd 2024/25 0

4th 2025/26 0

Cohort 2021/22

JI 2021/22 55

SI 2022/23 60

1st 2023/24 68

+12

2nd 2024/25 80

-80

3rd 2025/26 0

Cohort 2022/23

JI 2022/23 55

SI 2023/24 58

1st 2024/25 64

2nd 2025/26 66

Cohort 2023/24

JI 2023/24 47

SI 2024/25 54

1st 2025/26 55

Cohort 2024/25

JI 2024/25 70

-6

SI 2025/26 64

Cohort 2025/26

JI 2025/26 50

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	141	134	–	–	–	–	–	–	–	–	275
1975/76	–	–	–	–	–	–	–	–	–	–	284
1976/77	162	157	–	–	–	–	–	–	–	–	319
1977/78	168	159	–	–	–	–	–	–	–	–	327
1978/79	158	157	–	–	–	–	–	–	–	–	315
1979/80	150	148	–	–	–	–	–	–	–	–	298
1980/81	151	152	–	–	–	–	–	–	–	–	303
1981/82	146	159	–	–	–	–	–	–	–	–	305
1982/83	145	170	–	–	–	–	–	–	–	–	315
1983/84	143	169	–	–	–	–	–	–	–	–	312
1993/94	177	160	–	–	–	–	–	–	–	–	337
1994/95	183	168	–	–	–	–	–	–	–	–	351
1995/96	178	158	–	–	–	–	–	–	–	–	336
1996/97	178	157	–	–	–	–	–	–	–	–	335
1997/98	180	171	–	–	–	–	–	–	–	–	351
1998/99	175	174	–	–	–	–	–	–	–	–	349
1999/00	184	177	–	–	–	–	–	–	–	–	361
2000/01	197	195	–	–	–	–	–	–	–	–	392
2001/02	214	219	–	–	–	–	–	–	–	–	433
2002/03	215	210	–	–	–	–	–	–	–	–	425
2003/04	224	233	–	–	–	–	–	–	–	–	457
2004/05	245	244	–	–	–	–	–	–	–	–	489
2005/06	250	271	–	–	–	–	–	–	–	–	521
2006/07	265	271	–	–	–	–	–	–	–	–	536
2007/08	132	130	–	–	–	–	–	–	–	–	262
2008/09	131	141	–	–	–	–	–	–	–	–	272
2009/10	122	150	–	–	–	–	–	–	–	–	272
2010/11	116	155	–	–	–	–	–	–	–	–	271
2011/12	124	156	–	–	–	–	–	–	–	–	280
2012/13	146	150	–	–	–	–	–	–	–	–	296
2013/14	159	147	–	–	–	–	–	–	–	–	306
2014/15	178	153	–	–	–	–	–	–	–	–	331
2015/16	194	157	–	–	–	–	–	–	–	–	351
2016/17	171	148	–	–	–	–	–	–	–	–	319
2017/18	167	161	–	–	–	–	–	–	–	–	328
2018/19	149	156	–	–	–	–	–	–	–	–	305
2019/20	126	147	–	–	–	–	–	–	–	–	273
2020/21	121	133	59	67	64	64	–	–	–	–	254
2021/22	119	121	55	60	62	63	–	–	–	–	240
2022/23	114	122	55	60	65	56	–	–	–	–	236
2023/24	117	125	47	58	68	69	–	–	–	–	242
2024/25	134	134	70	54	64	80	–	–	–	–	268
2025/26	109	126	50	64	55	66	–	–	–	–	235