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ROXBORO N S

Roll number: 18742U Derrane, Co. Roscommon

School details

Address: Derrane, Co. Roscommon (F42NY75)
Email: [email protected]
Phone: 0906625703
Principal: Gillian McBride
Ethos: Catholic
DEIS: N
Irish classification: No subjects through Irish
Gaeltacht: N
Island: N
Local authority: Roscommon County Council
School patron: Bishop of Elphin
School type: Ordinary
School level: All-Through School
Planning area: Roscommon

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

25.11

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	103	4	25.75	32	1
2007/08	115	4	28.75	31	2
2008/09	128	5	25.60	27	0
2009/10	136	5	27.20	31	2
2010/11	161	6	26.83	35	2
2011/12	161	6	26.83	35	2
2012/13	168	6	28.00	34	3
2013/14	187	7	26.71	34	2
2014/15	202	8	25.25	28	0
2015/16	207	8	25.88	29	0
2016/17	207	8	25.88	30	2
2017/18	216	8	27.00	31	2
2019/20	206	8	25.75	30	3
2020/21	205	8	25.62	31	2
2021/22	209	8	26.12	31	2
2022/23	204	8	25.50	32	1
2023/24	214	8	26.75	31	2
2024/25	221	8	27.62	30	3
2025/26	226	9	25.11	30	1

Data highlights

Key numbers to spot outliers or notable changes.

Biggest gain in a single year: 2010/11: 136 in 2009/10 → 161, +25 pupils.
Biggest loss in a single year: 1993/94: 95 in 1983/84 → 75, -20 pupils.
Largest single-class increase: Junior Infants in 2021/22 (17 → 28, +11).
Largest single-class decrease: Junior Infants in 2022/23 (28 → 16, -12).
Largest cohort-step gain: 1st → 2nd in 2023/24 (20 → 24, +4).
Largest cohort-step loss: 3rd → 4th in 2025/26 (26 → 25, -1).
Overall: 57 (1974/75) → 226 (2025/26), 169.

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	16	34	24.8	6
Senior Infants	19	28	24.0	6
1st Class	20	31	25.5	6
2nd Class	24	31	27.2	6
3rd Class	21	31	27.0	6
4th Class	22	32	27.3	6
5th Class	25	31	28.5	6
6th Class	27	30	28.8	6
Total	56	226	130.2	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 17

SI 2021/22 19

1st 2022/23 20

2nd 2023/24 24

3rd 2024/25 26

-1

4th 2025/26 25

Cohort 2021/22

JI 2021/22 28

SI 2022/23 28

1st 2023/24 31

-1

2nd 2024/25 30

-1

3rd 2025/26 29

Cohort 2022/23

JI 2022/23 16

SI 2023/24 20

1st 2024/25 24

2nd 2025/26 26

Cohort 2023/24

JI 2023/24 26

SI 2024/25 27

1st 2025/26 27

Cohort 2024/25

JI 2024/25 28

SI 2025/26 28

Cohort 2025/26

JI 2025/26 34

Raw data by year

Year	Female	Male	JI	SI	1st	2nd	3rd	4th	5th	6th	Total
1974/75	18	39	–	–	–	–	–	–	–	–	57
1975/76	–	–	–	–	–	–	–	–	–	–	56
1976/77	19	37	–	–	–	–	–	–	–	–	56
1977/78	24	42	–	–	–	–	–	–	–	–	66
1978/79	–	39	–	–	–	–	–	–	–	–	64
1979/80	34	38	–	–	–	–	–	–	–	–	72
1980/81	38	40	–	–	–	–	–	–	–	–	78
1981/82	43	41	–	–	–	–	–	–	–	–	84
1982/83	47	42	–	–	–	–	–	–	–	–	89
1983/84	50	45	–	–	–	–	–	–	–	–	95
1993/94	31	44	–	–	–	–	–	–	–	–	75
1994/95	26	41	–	–	–	–	–	–	–	–	67
1995/96	26	46	–	–	–	–	–	–	–	–	72
1996/97	29	53	–	–	–	–	–	–	–	–	82
1997/98	35	56	–	–	–	–	–	–	–	–	91
1998/99	35	60	–	–	–	–	–	–	–	–	95
1999/00	40	73	–	–	–	–	–	–	–	–	113
2000/01	37	67	–	–	–	–	–	–	–	–	104
2001/02	37	63	–	–	–	–	–	–	–	–	100
2002/03	39	59	–	–	–	–	–	–	–	–	98
2003/04	42	61	–	–	–	–	–	–	–	–	103
2004/05	45	54	–	–	–	–	–	–	–	–	99
2005/06	39	57	–	–	–	–	–	–	–	–	96
2006/07	43	60	–	–	–	–	–	–	–	–	103
2007/08	55	60	–	–	–	–	–	–	–	–	115
2008/09	61	67	–	–	–	–	–	–	–	–	128
2009/10	65	71	–	–	–	–	–	–	–	–	136
2010/11	72	89	–	–	–	–	–	–	–	–	161
2011/12	69	92	–	–	–	–	–	–	–	–	161
2012/13	74	94	–	–	–	–	–	–	–	–	168
2013/14	85	102	–	–	–	–	–	–	–	–	187
2014/15	97	105	–	–	–	–	–	–	–	–	202
2015/16	96	111	–	–	–	–	–	–	–	–	207
2016/17	93	114	–	–	–	–	–	–	–	–	207
2017/18	101	115	–	–	–	–	–	–	–	–	216
2018/19	103	108	–	–	–	–	–	–	–	–	211
2019/20	101	105	–	–	–	–	–	–	–	–	206
2020/21	94	111	17	22	27	31	21	30	28	29	205
2021/22	92	117	28	19	24	27	31	22	30	28	209
2022/23	89	115	16	28	20	25	29	32	25	29	204
2023/24	94	120	26	20	31	24	26	29	31	27	214
2024/25	101	120	28	27	24	30	26	26	30	30	221
2025/26	108	118	34	28	27	26	29	25	27	30	226