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ST FRANCIS XAVIER J N S

Roll number: 19435Q Roselawn Road, Castleknock, Dublin 15

School details

Address: Roselawn Road, Castleknock, Dublin 15 (D15CX84)
Email: [email protected]
Phone: 018210892
Principal: Heidi Collins
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Fingal County Council
School patron: Archbishop of Dublin
School type: Ordinary with Special Classes
School level: Junior
Planning area: BlanchardstownVge_D15

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

21.94

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	361	13	27.77	29	0
2007/08	373	14	26.64	29	0
2008/09	405	15	27.00	29	0
2009/10	397	15	26.47	28	0
2010/11	387	15	25.80	28	0
2011/12	368	15	24.53	29	0
2012/13	384	15	25.60	30	1
2013/14	396	15	26.40	30	2
2014/15	413	15	27.53	30	4
2015/16	403	15	26.87	30	3
2016/17	403	15	26.87	29	0
2017/18	395	15	26.33	29	0
2019/20	407	16	25.44	29	0
2020/21	384	16	24.00	27	0
2021/22	384	16	24.00	27	0
2022/23	370	16	23.12	26	0
2023/24	376	16	23.50	26	0
2024/25	382	16	23.88	26	0
2025/26	351	16	21.94	26	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1976/77: 316 in 1975/76 → 551, +235 pupils.
Biggest loss in a single year: 1993/94: 621 in 1983/84 → 497, -124 pupils.
Largest single-class increase: 2nd Class in 2024/25 (84 → 98, +14).
Largest single-class decrease: 1st Class in 2021/22 (105 → 86, -19).
Largest cohort-step gain: 1st → 2nd in 2024/25 (97 → 98, +1).
Largest cohort-step loss: 2nd → 3rd in 2022/23 (105 → 0, -105).
Overall: 130 (1974/75) → 357 (2025/26), 227.

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	72	103	93.0	6
Senior Infants	87	101	95.0	6
1st Class	86	105	96.2	6
2nd Class	84	105	94.5	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	130	676	434.3	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 95

-2

SI 2021/22 93

-4

1st 2022/23 89

-5

2nd 2023/24 84

-84

3rd 2024/25 0

4th 2025/26 0

Cohort 2021/22

JI 2021/22 101

-3

SI 2022/23 98

-1

1st 2023/24 97

2nd 2024/25 98

-98

3rd 2025/26 0

Cohort 2022/23

JI 2022/23 103

-2

SI 2023/24 101

1st 2024/25 102

-2

2nd 2025/26 100

Cohort 2023/24

JI 2023/24 100

SI 2024/25 101

-3

1st 2025/26 98

Cohort 2024/25

JI 2024/25 87

SI 2025/26 87

Cohort 2025/26

JI 2025/26 72

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	58	72	–	–	–	–	–	–	–	–	130
1975/76	–	–	–	–	–	–	–	–	–	–	316
1976/77	253	298	–	–	–	–	–	–	–	–	551
1977/78	235	312	–	–	–	–	–	–	–	–	547
1978/79	–	–	–	–	–	–	–	–	–	–	664
1980/81	304	372	–	–	–	–	–	–	–	–	676
1981/82	311	355	–	–	–	–	–	–	–	–	666
1982/83	286	365	–	–	–	–	–	–	–	–	651
1983/84	304	317	–	–	–	–	–	–	–	–	621
1993/94	233	264	–	–	–	–	–	–	–	–	497
1994/95	231	261	–	–	–	–	–	–	–	–	492
1995/96	219	276	–	–	–	–	–	–	–	–	495
1996/97	213	248	–	–	–	–	–	–	–	–	461
1997/98	200	250	–	–	–	–	–	–	–	–	450
1998/99	192	247	–	–	–	–	–	–	–	–	439
1999/00	183	233	–	–	–	–	–	–	–	–	416
2000/01	175	243	–	–	–	–	–	–	–	–	418
2001/02	168	239	–	–	–	–	–	–	–	–	407
2002/03	169	229	–	–	–	–	–	–	–	–	398
2003/04	157	217	–	–	–	–	–	–	–	–	374
2004/05	157	187	–	–	–	–	–	–	–	–	344
2005/06	157	186	–	–	–	–	–	–	–	–	343
2006/07	167	204	–	–	–	–	–	–	–	–	371
2007/08	182	200	–	–	–	–	–	–	–	–	382
2008/09	201	214	–	–	–	–	–	–	–	–	415
2009/10	199	205	–	–	–	–	–	–	–	–	404
2010/11	195	206	–	–	–	–	–	–	–	–	401
2011/12	177	197	–	–	–	–	–	–	–	–	374
2012/13	176	214	–	–	–	–	–	–	–	–	390
2013/14	178	224	–	–	–	–	–	–	–	–	402
2014/15	185	234	–	–	–	–	–	–	–	–	419
2015/16	169	240	–	–	–	–	–	–	–	–	409
2016/17	177	231	–	–	–	–	–	–	–	–	408
2017/18	184	217	–	–	–	–	–	–	–	–	401
2018/19	206	205	–	–	–	–	–	–	–	–	411
2019/20	214	199	–	–	–	–	–	–	–	–	413
2020/21	200	190	95	90	105	94	–	–	–	–	390
2021/22	202	188	101	93	86	105	–	–	–	–	390
2022/23	185	191	103	98	89	86	–	–	–	–	376
2023/24	175	207	100	101	97	84	–	–	–	–	382
2024/25	182	206	87	101	102	98	–	–	–	–	388
2025/26	164	193	72	87	98	100	–	–	–	–	357