Number of births for mid-year to mid-year periods 1991/1992 to 2016/2017. The data is available at the following geographies:
London Borough
2011 Ward
2018 Ward
Middle Layer Super Output Area (MSOA)
Lower Layer Super Output Area (LSOA)
LSOA figures are produced by the Office for National Statistics (ONS) while other geographies have been aggregated using these figures by the Greater London Authority.
For 2018 wards, data for whole LSOAs were simply assigned to wards based on ONS’s best fit lookup table. No other apportioning was undertaken (e.g. if 90% of an LSOA sat in a ward then 100% of the births would be apportioned to that ward).
ONS also produce births and fertility rates statistics for calendar year.