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OUR LADY OF MERCY SENIOR P.S.

Roll number: 18689T Military Road, Waterford

School details

Address
Military Road, Waterford (X91XN28)
Email
[email protected]
Phone
051875993
Principal
Bríd O'Brien
Ethos
Catholic
DEIS
Y
Irish classification
No subjects through Irish
Gaeltacht
N
Island
N
Local authority
Waterford City Council
School patron
Bishop of Waterford & Lismore
School type
Ordinary
School level
Senior
Planning area
Waterford

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
20.71
2025/26
Mainstream classes
14
2025/26
Largest class group
24
2025/26
Classes with 30+ pupils
0
2025/26

Class group metrics trend

Class group metrics by year

Year Mainstream class pupils Mainstream classes Average class size Largest class Classes 30+
2006/07 283 11 25.73 33 2
2007/08 297 12 24.75 29 0
2008/09 290 12 24.17 29 0
2009/10 290 12 24.17 28 0
2010/11 299 12 24.92 28 0
2011/12 298 12 24.83 27 0
2012/13 310 12 25.83 27 0
2013/14 313 12 26.08 28 0
2014/15 304 12 25.33 27 0
2015/16 304 11 27.64 32 4
2016/17 296 11 26.91 31 1
2017/18 298 11 27.09 34 3
2019/20 308 12 25.67 28 0
2020/21 310 12 25.83 28 0
2021/22 304 12 25.33 29 0
2022/23 295 14 21.07 27 0
2023/24 288 14 20.57 25 0
2024/25 286 14 20.43 24 0
2025/26 290 14 20.71 24 0

Data highlights

Key numbers to spot outliers or notable changes.

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 0 0 0.0 1
Senior Infants 0 0 0.0 1
1st Class 0 0 0.0 1
2nd Class 0 0 0.0 1
3rd Class 60 81 71.8 6
4th Class 61 81 72.7 6
5th Class 69 83 75.5 6
6th Class 72 82 75.8 6
Total 276 401 324.7 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

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 2025/26
JI 2025/26 0

Raw data by year

Year Female Male JI SI 1st 2nd 3rd 4th 5th 6th Total
1974/75 353 – – – – – – – – – 353
1975/76 – – – – – – – – – – 366
1976/77 384 – – – – – – – – – 384
1977/78 396 – – – – – – – – – 396
1978/79 391 – – – – – – – – – 391
1979/80 387 – – – – – – – – – 387
1980/81 385 – – – – – – – – – 385
1981/82 378 – – – – – – – – – 378
1982/83 395 – – – – – – – – – 395
1983/84 401 – – – – – – – – – 401
1993/94 336 – – – – – – – – – 336
1994/95 340 – – – – – – – – – 340
1995/96 341 – – – – – – – – – 341
1996/97 352 – – – – – – – – – 352
1997/98 348 – – – – – – – – – 348
1998/99 331 – – – – – – – – – 331
1999/00 322 – – – – – – – – – 322
2000/01 306 – – – – – – – – – 306
2001/02 303 – – – – – – – – – 303
2002/03 296 – – – – – – – – – 296
2003/04 276 – – – – – – – – – 276
2004/05 283 – – – – – – – – – 283
2005/06 280 – – – – – – – – – 280
2006/07 292 – – – – – – – – – 292
2007/08 305 – – – – – – – – – 305
2008/09 296 – – – – – – – – – 296
2009/10 302 – – – – – – – – – 302
2010/11 306 – – – – – – – – – 306
2011/12 298 – – – – – – – – – 298
2012/13 310 – – – – – – – – – 310
2013/14 313 – – – – – – – – – 313
2014/15 304 – – – – – – – – – 304
2015/16 304 – – – – – – – – – 304
2016/17 296 – – – – – – – – – 296
2017/18 298 – – – – – – – – – 298
2018/19 304 – – – – – – – – – 304
2019/20 308 – – – – – – – – – 308
2020/21 310 – – – – – 71 81 83 75 310
2021/22 304 – – – – – 75 70 77 82 304
2022/23 295 – – – – – 69 78 69 79 295
2023/24 288 – – – – – 75 67 74 72 288
2024/25 286 – – – – – 60 79 72 75 286
2025/26 292 – – – – – 81 61 78 72 292