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• Total Population 1801 to 1971: Population fell from 313 in 1801 to 270 in 1971.
• Occupational Structure in 1881:

Here we are presenting statistics for a historical unit, which may have changed its boundaries significantly during the period covered.

Alternative names

The following alternative names exist:

Name	Status	Language	Start	End	Authority
LLANFAIR YNG NGHORNWY	Preferred	English			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
LLANFAIR YNGHORNWY	Alternate	English			1881 Census of England and Wales, Table 4, 'Area, Houses, and Population of Civil Parishes in the several Registration Sub-Districts in 1871 and 1881'.
LLANFAIRYNGHORNWY	Alternate	English			1851 Census of Great Britain, Table [1], 'Population Abstract'.

Unit associations

We know of no associations with other units.

Unit history

This unit was part of the following units:

Name	Type	Start	End	Authority
ANGLESEY	Ancient County			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
ANGLESEY RegD	Poor Law Union/Reg. District		01 Jan 1885	1881 Census of England and Wales, Table 4, 'Area, Houses, and Population of Civil Parishes in the several Registration Sub-Districts in 1871 and 1881'.
ANGLESEY PLU/RegD	Poor Law Union/Reg. District			1911 Census of England and Wales, Table 5, 'Registration Counties, Districts and Sub-districts with their constituent civil parishes. - Urban or Rural District in which each parish is situated; Area; families or separate occupiers, and population, 1901 and 1911; and population enumerated in Institutions, large establishments, and on vessels, &c., 1911'.
ANGLESEY RSD	Sanitary District			1891 Census of England and Wales, Table 4, 'Area and Population in Rural Sanitary Districts'.
LLANFECHELL	Registration sub-District			1911 Census of England and Wales, Table 5, 'Registration Counties, Districts and Sub-districts with their constituent civil parishes. - Urban or Rural District in which each parish is situated; Area; families or separate occupiers, and population, 1901 and 1911; and population enumerated in Institutions, large establishments, and on vessels, &c., 1911'.
TALYBOLION Hundred/Cmt	Ancient District			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
TALYBOLION Hundred/Cmt	Ancient District			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
TWRCELYN RD	Local Government District			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.
LLANDDEUSANT CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 118.

Boundary changes

This unit was affected by the following changes:

Date	Type of change	Other unit involved	Area transferred	Authority
01 Oct 1933	was enlarged by gaining part of	LLANFECHALL AP/CP	Area: 111 acres. Population in 1931: 31.	1931 Census of England and Wales, Table B, 'Areas altered between 26th April, 1931 and 30th June, 1934, showing constitution as at the latter date, in terms of constitution as at the former date, together with particulars of acreage and population'.; M. of H. Order No. 77467. The Anglesey Review Order, 1933
01 Oct 1933	was enlarged by the abolition of	LLANRHWYDRYS CP/Ch	Area: 1119 acres. Population in 1931: 90.	1931 Census of England and Wales, Table B, 'Areas altered between 26th April, 1931 and 30th June, 1934, showing constitution as at the latter date, in terms of constitution as at the former date, together with particulars of acreage and population'.; M. of H. Order No. 77467. The Anglesey Review Order, 1933

Lower level units

This unit contained the following units:

Name	Type	Start	End	Authority
BODRONYN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 17.
CEMLYN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 40.
CORNWY LAN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 48.
LLANRHWYDRYS CP/Ch	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 137.