Class size information was first collected in 1998. Information for 1998, 2001, 2005 and 2009 is shown in the table.
1998 2001 2005 2009 Year group 1 Year group 2 Year group 3 Year group 1 Year group 2 Year group 3 Year group 1 Year group 2 Year group 3 Year group 1 Year group 2 Year group 3 Barking and Dagenham 27.6 27.7 25.8 26.9 26.5 28.1 26.7 27.5 27.2 27.9 27.9 27.0 Barnet 28.2 27.6 26.9 27.5 26.8 27.7 27.7 28.1 27.6 28.9 27.2 27.4 Bexley 29.3 30.2 29.8 27.8 27.1 29.0 27.7 27.3 27.6 28.1 27.6 28.3 Brent 26.9 24.6 27.0 27.6 27.6 28.4 26.6 27.2 28.6 29.2 28.1 27.9 Bromley 30.3 29.4 30.0 27.9 24.9 29.8 27.4 27.4 28.9 28.2 27.5 29.4 Camden 27.5 27.5 27.6 27.8 28.4 28.3 27.3 27.0 27.9 28.3 27.3 27.9 City of London 25.0 n/a n/a 30.0 30.0 n/a n/a 27.0 30.0 29.0 30.0 n/a Croydon 28.4 28.1 29.5 27.3 26.7 27.8 26.8 28.1 28.3 28.7 27.9 28.0 Ealing 28.0 27.5 27.9 27.0 26.6 27.9 28.1 28.2 28.1 28.8 27.1 27.6 Enfield 29.9 29.9 29.7 27.8 27.5 28.7 27.8 27.4 29.1 28.9 28.7 28.7 Greenwich 26.1 26.8 27.6 25.6 25.9 26.8 26.7 27.2 26.8 27.2 26.2 26.1 Hackney 26.0 26.3 27.1 27.0 26.9 27.0 26.3 27.1 27.8 27.8 25.8 26.2 Hammersmith and Fulham 24.8 27.5 27.5 27.7 28.2 26.1 26.7 25.6 27.9 27.7 27.3 27.6 Haringey 27.9 26.9 27.3 28.2 28.2 27.7 26.6 28.2 28.3 28.4 27.8 26.7 Harrow 28.2 29.1 28.4 26.9 27.6 27.9 27.4 26.7 27.9 29.0 27.6 26.8 Havering 28.3 28.4 28.3 27.2 26.9 26.4 27.1 26.6 27.3 28.0 27.6 27.6 Hilling don 28.6 29.1 27.8 26.6 26.2 26.9 26.9 26.2 26.9 28.0 26.9 27.4 Hounslow 28.7 27.4 26.9 27.1 27.4 26.1 27.2 25.9 26.9 28.9 26.5 27.4 Islington 28.6 26.1 28.4 26.5 27.6 27.8 26.9 26.3 26.2 26.5 25.2 26.6 Kensington and Chelsea 25.6 26.4 26.0 27.0 26.7 25.7 27.7 28.8 27.4 27.0 27.3 25.8 Kingston upon Thames 33.1 31.3 31.4 27.1 23.3 29.8 28.5 28.5 27.2 28.8 27.1 28.2 Lambeth 25.8 27.2 25.6 26.5 26.5 26.6 27.2 26.2 27.0 27.5 26.9 26.1 Lewisham 28.2 28.1 27.4 28.3 26.6 26.8 25.9 26.9 27.3 28.8 26.4 26.9 Merton 30.8 28.0 28.1 26.5 24.7 28.3 26.7 26.5 26.5 27.3 26.9 27.3 Newham 29.4 29.1 29.2 28.6 28.2 28.8 27.2 27.2 28.0 27.8 27.6 27.4 Redbridge 28.8 28.5 29.6 28.7 26.8 29.1 28.7 28.4 29.2 29.4 28.7 29.0 Richmond upon Thames 27.9 28.8 27.7 26.9 27.2 27.1 28.2 27.8 27.1 29.0 27.2 27.6 Southwark 27.1 27.4 27.6 26.9 26.8 27.4 25.7 26.6 26.7 26.0 25.2 25.0 Sutton 27.2 28.6 28.0 26.1 25.8 28.3 27.5 28.0 29.3 28.1 27.8 28.4 Tower Hamlets 28.5 27.7 28.1 28.0 27.2 26.8 27.1 27.8 27.6 28.6 27.4 26.6 Waltham Forest 27.4 28.9 27.5 27.7 27.1 28.8 28.6 27.2 27.1 28.8 29.1 28.4 Wandsworth 26.0 25.5 25.7 25.5 24.9 27.2 27.6 26.1 26.5 27.3 26.0 26.0 Westminster 26.3 24.0 26.0 28.3 27.8 25.6 26.7 27.2 27.6 25.9 27.6 26.5 n/a = Not applicable—no children in this year group. 1 One teacher classes as taught during a single selected period in each school on the day of the census in January. 2 Year groups 1, 2 and 3 refer to children aged five, six and seven respectively, with the exception of a small number of children who are placed outside of their year group. 3 Includes middle schools as deemed. Source: School Census