Cardiff St John and St Mary Parish

Statistics

Population

Population

Densities and rates of growth. Age structure: concentrations of young people, and of the old.
Industry

Industry

How people made their living: identifying farming communities, pit villages, mill towns and so on.
Social Structure

Social Structure

Social class and socio-economic groups. Concentrations of professionals, and of unskilled labourers.
Housing

Housing

Numbers of houses. Overcrowding: persons per room. Amenities: central heating, baths and WCs.
Place marker map of Great Britain and Ireland

Notes

Between 1811 and 1851 the census parish tables list Cardiff St John and St Mary as a single parish, comprising the whole of the town. In both 1801 and all censuses 1861-1901 the two parishes are listed separately. Perhaps surprisingly Melville Richards does not list 'Cardiff' or 'Caerdydd' as a parish at all, only as a County Borough and as a Rural District, although he does list some chapelries as being within it.

The following alternate names for this unit exist:

Name Status Language Start End Authority
CARDIFF ST JOHN AND ST MARY Preferred English     1851 Census of Great Britain, Table [1], 'Population Abstract'.
CARDIFF Alternate English     Great Britain Historical GIS Project
JOHN ST AND ST MARY Alternate English     1831 Census of Great Britain, Table [1], 'Population Abstract'.
ST JOHN AND ST MARY Alternate English     1851 Census of Great Britain, Table [1], 'Population Abstract'.

This unit contained the following units:

Name Type Start End Authority
CAERAU Ch/CP Parish-level Unit     M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 25.
LLANFENECHI Ch Parish-level Unit     M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 119.
MERTHYR ONFRYD Ch Parish-level Unit     M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 156.

This unit was associated with the following other units:

Nature of association Other unit involved Type of unit Authority
was succeeded by CARDIFF CP Parish-level Unit Great Britain Historical GIS Project

This unit was part of the following units:

Name Type Start End Authority
GLAMORGAN Ancient County     1851 Census of Great Britain, Table [1], 'Population Abstract'.
CARDIFF RegD/PLU Poor Law Union/Reg. District     1851 Census of Great Britain, Table [1], 'Population Abstract'.
CARDIFF AD_Town/Borough/AncTn Ancient District     1851 Census of Great Britain, Table [1], 'Population Abstract'.
CIBWR Cmt Ancient District     M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 33.
KIBBOR Hundred Ancient District     M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 33.

We know of no boundary changes affecting this unit.

Boundary Map of Cardiff St John and St Mary Parish

If the boundaries of the Parish-level Unit changed over time, this map will show all the different boundaries.

Maps Census reports

How to reference this page:

GB Historical GIS / University of Portsmouth, Cardiff St John and St Mary (Parish) through time, A Vision of Britain through Time.

URL: https://www.visionofbritain.org.uk/unit/10484029

Date accessed: 06th November 2025