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EDENDERRY CONVENT N S

Roll number: 16013V School Lane, Edenderry, Co. Offaly

School details

Address: School Lane, Edenderry, Co. Offaly (R45DA33)
Email: [email protected]
Phone: 0469731424
Principal: Declan Downey
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Offaly County Council
School patron: Bishop of Kildare & Leighlin
School type: Ordinary with Special Classes
School level: All-Through School
Planning area: Edenderry

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

24.53

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	587	22	26.68	33	4
2007/08	610	23	26.52	36	4
2008/09	587	24	24.46	28	0
2009/10	540	21	25.71	32	2
2010/11	507	19	26.68	32	4
2011/12	481	18	26.72	32	5
2012/13	462	17	27.18	36	6
2013/14	475	17	27.94	34	6
2014/15	449	17	26.41	33	5
2015/16	424	17	24.94	31	3
2016/17	428	17	25.18	32	2
2017/18	394	18	21.89	33	1
2019/20	384	17	22.59	36	1
2020/21	382	18	21.22	26	0
2021/22	374	18	20.78	27	0
2022/23	386	18	21.44	28	0
2023/24	410	18	22.78	30	2
2024/25	403	17	23.71	30	1
2025/26	417	17	24.53	28	0

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2005/06: 480 in 2004/05 → 536, +56 pupils.
Biggest loss in a single year: 1993/94: 633 in 1983/84 → 534, -99 pupils.
Largest single-class increase: 4th Class in 2023/24 (36 → 64, +28).
Largest single-class decrease: 3rd Class in 2024/25 (67 → 44, -23).
Largest cohort-step gain: JI → SI in 2025/26 (44 → 52, +8).
Largest cohort-step loss: 4th → 5th in 2024/25 (64 → 59, -5).
Overall: 548 (1974/75) → 429 (2025/26), -119.

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	36	56	44.2	6
Senior Infants	38	56	46.8	6
1st Class	43	61	50.3	6
2nd Class	40	64	50.8	6
3rd Class	38	67	50.8	6
4th Class	36	69	52.8	6
5th Class	36	71	51.7	6
6th Class	40	60	49.8	6
Total	380	633	486.7	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 39

SI 2021/22 40

1st 2022/23 43

2nd 2023/24 46

-2

3rd 2024/25 44

4th 2025/26 49

Cohort 2021/22

JI 2021/22 36

SI 2022/23 40

1st 2023/24 43

2nd 2024/25 47

3rd 2025/26 47

Cohort 2022/23

JI 2022/23 38

SI 2023/24 38

1st 2024/25 45

2nd 2025/26 50

Cohort 2023/24

JI 2023/24 56

-1

SI 2024/25 55

-3

1st 2025/26 52

Cohort 2024/25

JI 2024/25 44

SI 2025/26 52

Cohort 2025/26

JI 2025/26 52

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	371	177	–	–	–	–	–	–	–	–	548
1975/76	–	–	–	–	–	–	–	–	–	–	548
1976/77	387	165	–	–	–	–	–	–	–	–	552
1977/78	386	165	–	–	–	–	–	–	–	–	551
1978/79	386	173	–	–	–	–	–	–	–	–	559
1979/80	401	162	–	–	–	–	–	–	–	–	563
1980/81	409	163	–	–	–	–	–	–	–	–	572
1981/82	419	172	–	–	–	–	–	–	–	–	591
1982/83	426	191	–	–	–	–	–	–	–	–	617
1983/84	427	206	–	–	–	–	–	–	–	–	633
1993/94	404	130	–	–	–	–	–	–	–	–	534
1994/95	392	115	–	–	–	–	–	–	–	–	507
1995/96	373	125	–	–	–	–	–	–	–	–	498
1996/97	356	118	–	–	–	–	–	–	–	–	474
1997/98	336	115	–	–	–	–	–	–	–	–	451
1998/99	310	107	–	–	–	–	–	–	–	–	417
1999/00	311	100	–	–	–	–	–	–	–	–	411
2000/01	317	103	–	–	–	–	–	–	–	–	420
2001/02	315	109	–	–	–	–	–	–	–	–	424
2002/03	323	104	–	–	–	–	–	–	–	–	427
2003/04	339	126	–	–	–	–	–	–	–	–	465
2004/05	341	139	–	–	–	–	–	–	–	–	480
2005/06	374	162	–	–	–	–	–	–	–	–	536
2006/07	411	176	–	–	–	–	–	–	–	–	587
2007/08	447	163	–	–	–	–	–	–	–	–	610
2008/09	449	138	–	–	–	–	–	–	–	–	587
2009/10	428	112	–	–	–	–	–	–	–	–	540
2010/11	394	113	–	–	–	–	–	–	–	–	507
2011/12	374	107	–	–	–	–	–	–	–	–	481
2012/13	356	106	–	–	–	–	–	–	–	–	462
2013/14	360	115	–	–	–	–	–	–	–	–	475
2014/15	343	106	–	–	–	–	–	–	–	–	449
2015/16	320	104	–	–	–	–	–	–	–	–	424
2016/17	317	111	–	–	–	–	–	–	–	–	428
2017/18	303	91	–	–	–	–	–	–	–	–	394
2018/19	299	97	–	–	–	–	–	–	–	–	396
2019/20	289	95	–	–	–	–	–	–	–	–	384
2020/21	282	100	39	56	58	40	50	46	42	51	382
2021/22	248	132	36	40	61	58	38	53	47	41	380
2022/23	236	162	38	40	43	64	59	36	55	51	398
2023/24	243	179	56	38	43	46	67	64	36	60	422
2024/25	237	178	44	55	45	47	44	69	59	40	415
2025/26	244	185	52	52	52	50	47	49	71	56	429