Available Themes

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• Total Population 1801 to 1971: Population grew from 975 in 1801 to 1,796 in 1971.
• Occupational Structure in 1831: Out of 283 males aged 20 and over, 92 were Agricultural Labourers.
• 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
LLANYSTUMDWY	Preferred	English			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 143.
LLAN YSTIN DWY	Alternate	English			1831 Census of Great Britain, Table [1], 'Population Abstract'.
LLANYSTYMDWY	Alternate	English			1851 Census of Great Britain, Table [1], 'Population Abstract'.
LLANYSTYNDWY	Alternate	English			1801 Census of Great Britain, Table [1], 'Population Abstract'.
LLAN YSTYN DWY	Alternate	English			1841 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
CAERNARVONSHIRE	Ancient County			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 143.
PWLLHELI RegD/PLU	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'.
CRICCIETH	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'.
EIFIONYDD Cmt	Ancient District			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 143.
EIFIONYDD Hundred	Ancient District			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 143.
LLEYN RD	Local Government District			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 143.
PWLLHELI RSD	Sanitary District			1891 Census of England and Wales, Table 4, 'Area and Population in Rural Sanitary Districts'.

Boundary changes

This unit was affected by the following changes:

Date	Type of change	Other unit involved	Area transferred	Authority
01 Apr 1934	was reduced to enlarge	DOLBENMAEN AP/CP	Area: 28 acres. Population in 1931: 2.	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. 78190. The Caernarvonshire Review Order, 1934
01 Apr 1934	was enlarged by the abolition of	LLANARMON CP/AP	Area: 3932 acres. Population in 1931: 643.	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. 78190. The Caernarvonshire Review Order, 1934
01 Apr 1934	was enlarged by the abolition of	LLANGYBI CP/AP	Area: 4056 acres. Population in 1931: 400.	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. 78190. The Caernarvonshire Review Order, 1934
01 Apr 1934	was enlarged by the abolition of	PENLLYN CP	Area: 629 acres. Population in 1931: 36.	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. 78190. The Caernarvonshire Review Order, 1934
01 Apr 1938	was reduced to enlarge	CRICIETH CP/AP	Area: 202 acres.	1951 Census of England and Wales, Table 5, 'Intercensal changes of Boundary (between 30th June, 1934, and 8th April, 1951)', for 'Administrative Areas (excluding Wards)'.; Ministry of Health Order No. 91912. The County of Caernarvon (Criccieth UD) Confirmation Order, 1937

Lower level units

This unit contained the following units:

Name	Type	Start	End	Authority
BERCIN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 2.
BETWS Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 11.
BETWS HIRFAEN Ch	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 12.
BOTACH Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 18.
BOTEWIN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 18.
BRYN BRAS Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 21.
CADAIRELWA Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 24.
CHWILOG Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 55.
GLASFRYN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 76.
PEN COED Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 172.
PENTYRCH Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 177.
RHWNG DWYFOR A DWYFECH Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 190.
TREFAN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 206.
YNYSGAIN Tn	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 225.