Available Themes

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• Total Population 1911 to 1961: Population fell from 16,839 in 1911 to 16,522 in 1961.
• Age Structure, in 5-year bands, from 1911 to 1961: In 1911, only 9.48 per cent of the population were aged 65 and over, but by 1961 17.47 per cent were.
• Infant Mortality Rate 1911 to 1973: The highest rate recorded was 125.79 infant deaths per thousand live births in 1914, and the lowest was 4.67 in 1965.

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
LLYN	Preferred	Welsh			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 145.
LLEYN	Preferred	English			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 145.
W491340	CASWEB identifiers for 1971 Local Govt Districts	English

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	Administrative County			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 145.

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	CRICIETH UD	part of Penllyn CP Area: 528 acres. Population in 1931: 60.	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	GLASLYN RD	Dolbenmaen CP and part of Treflys CP Area: 23495 acres. Population in 1931: 1738.	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 gaining part of	PORTMADOC UD	Area: 533 acres. Population in 1931: 21.	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 reduced to enlarge	PWLLHELI MB	part of Abererch CP Area: 91 acres. Population in 1931: 3.	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 UD	part of Llanystumdwy CP 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
ABERDARON AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 2.
ABERERCH AP/CP	Parish-level Unit			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
BARDSEY ISLAND ExP/CP	Parish-level Unit			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
BODFERIN AP/CP	Parish-level Unit			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
BOTWNNOG AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 18.
BRYNCROES AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 21.
BUAN CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 23.
CARNGUWCH CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 27.
CEIDIO AP/CP	Parish-level Unit			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
DOLBENMAEN CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 59.
EDERN AP/CP	Parish-level Unit			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
LLANAELHAEARN CP/AP	Parish-level Unit			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
LLANARMON AP/CP	Parish-level Unit			1901 Census of England and Wales, Table 12, 'Registration County, Districts, and Sub-Districts, with their Constituent Civil Parishes - Area; Houses and Population 1891 and 1901, and Separate Occupiers 1901'.
LLANBEDROG AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 104.
LLANDEGWNING AP/CP	Parish-level Unit			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'.
LLANDUDWEN AP/CP	Parish-level Unit			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'.
LLANENGAN AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 114.
LLANFAELRHYS AP/CP	Parish-level Unit			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'.
LLANFIHANGEL BACHELLAETH CP/AP	Parish-level Unit			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'.
LLANGIAN AP/CP	Parish-level Unit			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'.
LLANGWNNADL Ch/Hmlt/CP/AP	Parish-level Unit			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'.
LLANGYBI AP/CP	Parish-level Unit			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'.
LLANIESTYN CP/AP	Parish-level Unit			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'.
LLANNOR CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 135.
LLANYSTUMDWY CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 143.
MELLTEYRN AP/CP	Parish-level Unit			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'.
NEFYN CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 165.
PENLLECH Ch/CP	Parish-level Unit			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'.
PENLLYN CP	Parish-level Unit			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'.
PENRHOS AP/CP	Parish-level Unit			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'.
PISTYLL Ch/AP/CP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 180.
TUDWEILIOG CP/AP	Parish-level Unit			M. Richards, Welsh Administrative and Territorial Units (Cardiff: University of Wales Press, 1969), p. 216.