NameCensus.

UK surname

Treharne

A locational surname derived from a place name in Wales.

In the 1881 census there were 672 people recorded with the Treharne surname, ranking it #5,371 among surnames in the records. By 2016, the modern count was 874, ranked #6,431, down from #5,371 in 1881.

The strongest historical links point to Ystradyfodwg (incl. Rhigos), Llanddarog and Llangendeirne. In the modern distribution records, the strongest local clusters include Carmarthenshire, Bridgend and Blaenau Gwent.

Across the surname records, the highest recorded count for Treharne is 907 in 1998. Compared with 1881, the name has grown by 30.1%.

1881 census count

672

Ranked #5,371

Modern count

874

2016, ranked #6,431

Peak year

1998

907 bearers

Map years

9

1851 to 2016

Key insights

  • Treharne had 672 recorded bearers in 1881, making it the #5,371 surname in that year.
  • The latest modern count shown here is 874 in 2016, ranked #6,431.
  • Within the historical census years, the highest count was 903 in 1911.
  • The contemporary neighbourhood profile most associated with the surname is Established but Challenged.

Treharne surname distribution map

The map shows where the Treharne surname is concentrated in each census or modern distribution year. Darker areas mean a stronger local concentration.

Distribution map

Treharne surname density by area, 1881 census.

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Lower densityMedium densityHigh density

Timeline

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Treharne over time

The table below tracks recorded surname counts and rank from the 19th-century census years through the modern adult-register period.

Year Period Count Rank
1851 historical 292 #7,807
1861 historical 396 #6,476
1881 historical 672 #5,371
1891 historical 680 #5,752
1901 historical 813 #5,549
1911 historical 903 #4,940
1997 modern 865 #6,154
1998 modern 907 #6,122
1999 modern 883 #6,302
2000 modern 849 #6,462
2001 modern 837 #6,419
2002 modern 864 #6,390
2003 modern 832 #6,443
2004 modern 834 #6,438
2005 modern 821 #6,469
2006 modern 818 #6,500
2007 modern 814 #6,590
2008 modern 822 #6,589
2009 modern 846 #6,592
2010 modern 867 #6,590
2011 modern 897 #6,335
2012 modern 875 #6,385
2013 modern 887 #6,400
2014 modern 879 #6,489
2015 modern 868 #6,492
2016 modern 874 #6,431

Geography

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Where Treharnes are most common

Historical parish links are strongest around Ystradyfodwg (incl. Rhigos), Llanddarog, Llangendeirne, Merthyr Tydfil and Llanelly. These are the places where the surname stands out most clearly in the older records.

The modern local-area list points to Carmarthenshire, Bridgend and Blaenau Gwent. Treat these as concentration signals, not proof that every family line began there.

Some modern areas include a three-digit suffix, such as Leeds 110. The suffix is a small-area code, so it stays in the table while the prose uses the plain place name.

Top historical parishes

Rank Parish Area
1 Ystradyfodwg (incl. Rhigos) Glamorganshire
2 Llanddarog Carmarthenshire
3 Llangendeirne Carmarthenshire
4 Merthyr Tydfil Glamorganshire
5 Llanelly Carmarthenshire

Top modern areas

Rank Area District
1 Carmarthenshire 016 Carmarthenshire
2 Carmarthenshire 026 Carmarthenshire
3 Bridgend 003 Bridgend
4 Bridgend 009 Bridgend
5 Blaenau Gwent 005 Blaenau Gwent

Forenames

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First names often paired with Treharne

These lists show first names that appear often with the Treharne surname in historical and recent records.

Modern profile

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Neighbourhood profile for Treharne

Modern surname records can be compared with neighbourhood classifications. For Treharne, this points to the kinds of places where the surname is most concentrated today.

These neighbourhood labels describe areas, not individual people. They are useful because surnames often cluster through family history, migration, housing patterns and local work. A surname can be strongest in one type of neighbourhood even when people with that name live across the country.

The UK classification gives the national picture. The London classification is more specific to the capital, where housing, age profile, tenure and population mix can look quite different from the rest of the UK.

UK neighbourhood type

UK Output Area Classification

Supergroup

Semi- and Un-Skilled Workforce

Group

Established but Challenged

Nationally, the Treharne surname is most associated with neighbourhoods classed as Established but Challenged, within Semi- and Un-Skilled Workforce. This does not mean every Treharne household fits that profile, but it gives a useful signal about where the modern surname distribution is strongest.

Read profile summary

Group profile

Many households in these neighbourhoods comprise separated or divorced single parents with dependent children. Residents are typically born in the UK, and these neighbourhoods have relatively few members of ethnic minorities. The prevalence of children, their parents and those at or above normal retirement age, suggests neighbourhood structures may be long-established. Levels of unpaid care are high, and long-term disability is more common than in the Supergroup as a whole. Use of the social rented sector is common, often in terraced houses. Levels of overcrowding are above the Supergroup average. Unemployment is high, while those in work are employed in elementary occupations such as caring, leisure and customer services. Many residents have low level qualifications. Neighbourhood concentrations of this Group are found in the South Wales Valleys, Belfast, Londonderry and the Central Lowlands of Scotland.

Wider pattern

Living in terraced or semi-detached houses, residents of these neighbourhoods typically lack high levels of education and work in elementary or routine service occupations. Unemployment is above average. Residents are predominantly born in the UK, and residents are also predominantly from ethnic minorities. Social (but not private sector) rented sector housing is common. This Supergroup is found throughout the UK’s conurbations and industrial regions but is also an integral part of smaller towns.

London neighbourhood type

London Output Area Classification

Supergroup

The Greater London Mix

Group

Social Rented Sector Professional Support Workers

Within London, Treharne is most associated with areas classed as Social Rented Sector Professional Support Workers, part of The Greater London Mix. This gives the surname a London-specific profile rather than forcing the capital into the same pattern as the rest of the country.

Read profile summary

Group profile

Mainly located in Inner London, these neighbourhoods retain a diverse employment structure, with some concentration in associated professional and technical occupations rather than skilled trades or construction. Social renting is more common and levels of homeownership are low. Many residents identify as Black. There is a lower than average rate of marriage or civil partnership, few that are very old (85 or over) and higher than average incidence of disability.

Wider London pattern

A Supergroup embodying London's diversity in many respects, apart from low numbers of residents identifying as of Bangladeshi, Indian, Pakistani or Other (non-Chinese) Asian ethnicity. There is lower than average prevalence of families with dependent children, while there are above average occurrences of never-married individuals and single-person households. The age distribution is skewed towards younger, single residents and couples without children, with many individuals identifying as of mixed or multiple ethnicity. Social rented or private rented housing is slightly more prevalent than average, and many residents live in flats. Individuals typically work in professional and associated roles in public administration, education or health rather than in elementary occupations in agriculture, energy, water, construction or manufacturing. Incidence of students is slightly below average. Individuals declaring no religion are more prevalent than average and non-use of English at home is below average.

Healthy neighbourhoods

Access to healthy assets and hazards

Treharne is most concentrated in decile 2 for access to healthy assets and hazards. This places the surname towards the less healthy end of the index.

Lower deciles point towards weaker access to healthy assets or stronger exposure to local hazards. Higher deciles point towards stronger access and fewer hazards.

2
Lower access Higher access

Neighbourhood deprivation

Index of Multiple Deprivation

Treharne falls in decile 5 for neighbourhood deprivation. This puts the surname near the middle of the scale.

Decile 1 represents the more deprived end of the scale. Decile 10 represents the less deprived end.

5
More deprived Less deprived

Broadband speed

Fixed broadband download speed

The modern neighbourhood pattern for Treharne is most associated with a typical fixed broadband download band of 25-30 mbit/s.

The scale below places that band in context, from slower local download bands through to faster ones.

5
Slower band Faster band

Area snapshot

Ethnic group estimate

Most common ethnic group estimate
White - British

This describes the area pattern most associated with Treharne, not the ethnicity of every person with the surname.

Meaning and origin of Treharne

The surname TREHARNE has its origins in Wales, dating back to the 12th century. It is believed to be derived from the Welsh words "tre" meaning homestead or town, and "harn" meaning iron or ironworks, indicating a connection to a settlement or village associated with iron production.

One of the earliest recorded instances of the name can be found in the Black Book of St. David's, a medieval manuscript from the 13th century, where it appears as "Treharne" or "Treharan". This suggests that the name was well-established in Wales by that time.

During the Middle Ages, the TREHARNE family was particularly prominent in the counties of Pembrokeshire and Carmarthenshire, where they held lands and played a significant role in local affairs. Some notable individuals from this period include Rhys ap Treharne, a Welsh landowner and military leader who fought in the Welsh Wars of Independence in the late 13th century.

As the centuries progressed, the spelling of the name evolved, with variations such as Treharne, Treheron, and Treheron appearing in historical records. One notable bearer of the name was Sir John Treharne (1603-1681), a Welsh landowner and Member of Parliament during the English Civil War.

In the 18th century, a branch of the TREHARNE family settled in Glamorgan, where they became prominent landowners and industrialists. One of the most notable figures from this period was John Treharne (1749-1828), a successful ironmaster and coal owner, who played a significant role in the industrialization of South Wales.

Other notable individuals with the surname TREHARNE include Sir Evan Treharne (1792-1870), a Welsh judge and Member of Parliament, and Sir Hubert Treharne (1864-1944), a British soldier and colonial administrator who served as Governor of the Falkland Islands and British Guiana.

Throughout its history, the TREHARNE surname has maintained a strong connection to Wales, with many bearers of the name playing important roles in the social, political, and economic life of the region.

Sourced from namecensus.com.

1881 census detail

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Treharne families in the 1881 census

These tables use 1881 census entries for people recorded with the Treharne surname. Use the location tables for concentration, then the name and occupation tables for the people behind the surname.

Top counties

Total is the county count. Frequency and index adjust for local population size, so they are better concentration signals. Glamorgan leads with 395 Treharnes recorded in 1881 and an index of 34.61x.

County Total Index
Glamorgan 395 34.61x
Carmarthenshire 220 79.63x
Monmouthshire 20 4.22x
Pembrokeshire 18 8.64x
Middlesex 8 0.12x
Wiltshire 4 0.69x
Brecknockshire 2 1.53x
Durham 2 0.10x
Gloucestershire 1 0.08x
Herefordshire 1 0.37x
Hertfordshire 1 0.22x

Top districts and towns

Districts give a more local view than counties. Total shows raw records, while frequency and index show local concentration. Llanelly in Carmarthenshire leads with 97 Treharnes recorded in 1881 and an index of 155.87x.

Place Total Index
Llanelly 97 155.87x
Cwmdu 48 345.08x
Ystradyfodwg 48 47.94x
Merthyr Tydfil 38 34.64x
Aberdare 34 43.40x
Llangendeirne 28 546.88x
Llanddarog 25 1269.04x
Llangynwyd Higher 22 401.46x
Llantrisant 21 72.99x
Llanarthney 20 479.62x
Neath 18 77.52x
Swansea Town 17 18.17x
Pencoed 15 852.27x
Clase 14 32.99x
Llannon 14 369.39x
St Issells 14 318.18x
Aberystruth 12 28.73x
Briton Ferry 12 88.11x
Ystradowen 12 2400.00x
Roath 10 19.29x
Aberavon 9 85.71x
Llandilo Talybont 9 150.25x
Llanstephan 9 329.67x
Llangeinor 8 119.05x
Margam 8 62.84x
Llandyfodwg 7 108.19x
Llanwonno 7 17.07x
Mawr 7 291.67x
Carmarthen St Peter 6 25.41x
Llanedy 6 115.38x
St John Near Swansea 6 42.52x
St Woollos 6 11.34x
Hornsey 5 6.03x
Llangynwyd Middle 5 340.14x
Pembrey 5 39.37x
Cardiff St Mary 4 6.36x
Carmarthen St Ishmael 4 136.99x
Llandaff 4 10.53x
Llanrhidian Higher 4 55.17x
Swindon 4 8.89x
Blaenhonddan 3 56.50x
Kidwelly 3 53.19x
Swansea Lower 3 51.55x
Llangorse 2 253.16x
Narberth South 2 130.72x
Witton Le Wear 2 36.17x
Bedwellty 1 1.20x
Bushey 1 9.29x
Clifton 1 1.54x
Eglwysilan 1 5.05x
Gelligaer 1 3.84x
Islington London 1 0.16x
Limehouse London 1 1.39x
Llandilo Fawr 1 8.12x
Llangunnor 1 40.82x
Llanstadwell 1 14.68x
Mynyddyslwyn 1 5.35x
St Andrew Holborn 1 4.50x
St Clears 1 44.84x
Steynton 1 14.86x
Whitney 1 166.67x

Top female names

These are the female first names most often recorded with the Treharne surname in 1881. Names are not merged, so initials, variant spellings and transcription quirks can appear as separate rows.

Name Count
Mary 66
Elizabeth 40
Margaret 35
Ann 25
Sarah 25
Jane 15
Catherine 12
Anne 11
Hannah 11
Rachel 7
Maria 6
Ellen 5
Annie 4
Charlotte 4
Emily 4
Emma 4
Gwenllian 4
Martha 4
Eliza 3
Frances 3
Hanah 3
Louisa 3
Edith 2
Eleanor 2
Elizth. 2
Harriett 2
Janet 2
Margret 2
Margt. 2
Susan 2
Arabella 1
Caredwan 1
Charlot 1
Dianah 1
Elenor 1
Elizth.Mary 1
Esther 1
Fanny 1
Felish 1
Florance 1
Jannet 1
Jemima 1
Jennet 1
Jenny 1
Julia 1
Kade 1
Laurel 1
Leah 1
Letitia 1
Lizzie 1

Top male names

These are the male first names most often recorded with the Treharne surname in 1881. Names are not merged, so initials, variant spellings and transcription quirks can appear as separate rows.

Name Count
William 53
David 50
John 49
Thomas 35
Evan 12
Joseph 10
Treharne 6
George 5
Richard 5
Edwin 4
Frederick 4
Jonah 4
Lewis 4
Wm. 4
Albert 3
Daniel 3
Elias 3
Henry 3
James 3
Stephen 3
Abraham 2
Benjamin 2
Charles 2
Edward 2
Gomer 2
Gwillim 2
Isaac 2
Owen 2
Rees 2
Robert 2
Thos. 2
Edgar 1
Enoch 1
Ernest 1
Gwillym 1
Gwilum 1
Gwilym 1
Gwllim 1
Herbert 1
Isaiah 1
Ivor 1
Jno. 1
Mark 1
Morgan 1
Morris 1
Philip 1
Phillip 1
Rhys 1
Samuel 1
Wm.T. 1

FAQ

Treharne surname: questions and answers

How common was the Treharne surname in 1881?

In 1881, 672 people were recorded with the Treharne surname. That placed it at #5,371 in the surname rankings for that year.

How common is the Treharne surname today?

The latest modern count shown here is 874 in 2016. That gives Treharne a modern rank of #6,431.

What does the Treharne surname mean?

A locational surname derived from a place name in Wales.

What does the Treharne map show?

The map shows local surname concentration for the selected year. Darker areas have a stronger concentration of Treharne bearers relative to the surrounding population.

What records is this surname page based on?

The historical counts come from census surname records. The modern counts and neighbourhood summaries come from later surname distribution records. Counts are recorded bearers in those records, not a live estimate of everyone with the name today.