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ST OLIVERS NS

Roll number: 19512I Ballycasheen, Killarney, Co. Kerry

School details

Address: Ballycasheen, Killarney, Co. Kerry (V93W594)
Email: [email protected]
Phone: 0646632047
Principal: Rory Darcy
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Kerry County Council
School patron: Bishop of Kerry
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Killarney

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

23.62

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	447	19	23.53	33	2
2007/08	502	21	23.90	33	4
2008/09	544	24	22.67	27	0
2009/10	573	24	23.88	29	0
2010/11	616	25	24.64	29	0
2011/12	695	26	26.73	32	4
2012/13	714	26	27.46	34	10
2013/14	714	27	26.44	32	8
2014/15	722	27	26.74	30	5
2015/16	740	27	27.41	32	7
2016/17	715	26	27.50	31	7
2017/18	688	25	27.52	31	4
2019/20	617	24	25.71	30	1
2020/21	601	24	25.04	31	3
2021/22	569	24	23.71	31	1
2022/23	600	24	25.00	28	0
2023/24	567	24	23.62	28	0
2024/25	569	24	23.71	29	0
2025/26	567	24	23.62	27	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 1980/81: 413 in 1979/80 → 509, +96 pupils.
Biggest loss in a single year: 1993/94: 641 in 1983/84 → 561, -80 pupils.
Largest single-class increase: 1st Class in 2022/23 (63 → 86, +23).
Largest single-class decrease: Junior Infants in 2023/24 (80 → 62, -18).
Largest cohort-step gain: 4th → 5th in 2025/26 (68 → 82, +14).
Largest cohort-step loss: 2nd → 3rd in 2024/25 (82 → 73, -9).
Overall: 290 (1977/78) → 625 (2025/26), 335.

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	62	80	70.2	6
Senior Infants	61	78	72.3	6
1st Class	63	86	73.7	6
2nd Class	67	84	77.0	6
3rd Class	68	85	75.8	6
4th Class	68	84	75.5	6
5th Class	70	88	80.3	6
6th Class	76	89	82.7	6
Total	290	776	575.9	40

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 75

SI 2021/22 76

+10

1st 2022/23 86

-4

2nd 2023/24 82

-9

3rd 2024/25 73

4th 2025/26 82

Cohort 2021/22

JI 2021/22 69

SI 2022/23 77

-2

1st 2023/24 75

-1

2nd 2024/25 74

+11

3rd 2025/26 85

Cohort 2022/23

JI 2022/23 80

-2

SI 2023/24 78

-5

1st 2024/25 73

+11

2nd 2025/26 84

Cohort 2023/24

JI 2023/24 62

-1

SI 2024/25 61

1st 2025/26 69

Cohort 2024/25

JI 2024/25 68

SI 2025/26 77

Cohort 2025/26

JI 2025/26 67

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1977/78	136	154	–	–	–	–	–	–	–	–	290
1978/79	–	–	–	–	–	–	–	–	–	–	372
1979/80	203	210	–	–	–	–	–	–	–	–	413
1980/81	239	270	–	–	–	–	–	–	–	–	509
1981/82	263	299	–	–	–	–	–	–	–	–	562
1982/83	284	326	–	–	–	–	–	–	–	–	610
1983/84	300	341	–	–	–	–	–	–	–	–	641
1993/94	262	299	–	–	–	–	–	–	–	–	561
1994/95	254	280	–	–	–	–	–	–	–	–	534
1995/96	228	276	–	–	–	–	–	–	–	–	504
1996/97	223	287	–	–	–	–	–	–	–	–	510
1997/98	199	282	–	–	–	–	–	–	–	–	481
1998/99	190	274	–	–	–	–	–	–	–	–	464
1999/00	198	260	–	–	–	–	–	–	–	–	458
2000/01	181	236	–	–	–	–	–	–	–	–	417
2001/02	179	231	–	–	–	–	–	–	–	–	410
2002/03	184	249	–	–	–	–	–	–	–	–	433
2003/04	178	246	–	–	–	–	–	–	–	–	424
2004/05	190	246	–	–	–	–	–	–	–	–	436
2005/06	215	267	–	–	–	–	–	–	–	–	482
2006/07	240	277	–	–	–	–	–	–	–	–	517
2007/08	259	309	–	–	–	–	–	–	–	–	568
2008/09	294	335	–	–	–	–	–	–	–	–	629
2009/10	293	370	–	–	–	–	–	–	–	–	663
2010/11	311	389	–	–	–	–	–	–	–	–	700
2011/12	307	427	–	–	–	–	–	–	–	–	734
2012/13	322	431	–	–	–	–	–	–	–	–	753
2013/14	322	432	–	–	–	–	–	–	–	–	754
2014/15	329	431	–	–	–	–	–	–	–	–	760
2015/16	342	434	–	–	–	–	–	–	–	–	776
2016/17	331	419	–	–	–	–	–	–	–	–	750
2017/18	324	411	–	–	–	–	–	–	–	–	735
2018/19	327	386	–	–	–	–	–	–	–	–	713
2019/20	326	345	–	–	–	–	–	–	–	–	671
2020/21	316	336	75	65	76	77	76	69	88	85	652
2021/22	303	321	69	76	63	78	74	74	73	89	624
2022/23	316	335	80	77	86	67	79	84	81	76	651
2023/24	304	323	62	78	75	82	68	76	88	84	627
2024/25	296	326	68	61	73	74	73	68	70	83	622
2025/26	296	329	67	77	69	84	85	82	82	79	625