St Mary's (ward) displays distinctive ethnic group characteristics:

The main ethnic group is White British, representing 44% of the population. On average, 37% of the population in London belong to the White British ethnic group.

The following ethnic groups have proportions higher than average for the London:

• White British comprise 44%, while average for London is 37%
• Other White comprise 22%, while average for London is 15%

Conversely, the following ethnic groups have a proportion lower than the average for London:

• Indian comprise 3%, while average for London is 7%
• Pakistani comprise 1.2%, while average for London is 3%
• Bangladeshi comprise 0.3%, while average for London is 4%
• Black African comprise 5%, while average for London is 8%

St Mary's (ward) displays distinctive religion characteristics:

The main religion is Christian, representing 43% of the population. On average, 41% of the population in London belong to the Christian religion.

The following religions have proportions higher than average for the London:

• No Religion comprise 38%, while average for London is 27%

Conversely, the following religions have a proportion lower than the average for London:

• Hindu comprise 1.6%, while average for London is 5%
• Muslim comprise 7%, while average for London is 15%
• Sikh comprise 0.3%, while average for London is 1.6%

St Mary's (ward) displays distinctive age band characteristics:

The main age band is Aged 20 to 39, representing 49% of the population. On average, 33% of the population in London belong to the Aged 20 to 39 age band.

The following age bands have proportions higher than average for the London:

• Aged 20 to 39 comprise 49%, while average for London is 33%

Conversely, the following age bands have a proportion lower than the average for London:

• Aged under 20 comprise 15%, while average for London is 24%

St Mary's (ward) displays distinctive household type characteristics:

The main household type is One-person household, representing 36% of the population. On average, 29% of the population in London belong to the One-person household household type.

The following household types have proportions higher than average for the London:

• One-person household comprise 36%, while average for London is 29%
• Single-family: no children comprise 22%, while average for London is 14%

Conversely, the following household types have a proportion lower than the average for London:

• Single-family: with dependent children comprise 16%, while average for London is 27%
• Single-family: with non-dependent children comprise 6%, while average for London is 11%