1977 Mid Glamorgan County Council election

The 1977 Mid Glamorgan County Council election was held in May 1977 and were the second elections to Mid Glamorgan County Council, electing 85 councillors. It was preceded by the 1973 election and followed by the 1981 election.

Ward Results

Aberdare No.1: Llwydcoed (two seats)

Aberdare No.1: Llwydcoed 1977

Party		Candidate	Votes	%	±%
	Labour	J. Powell*	2,009
	Labour	Mervyn Prowle	1,925
	Plaid Cymru	G. Edwards	1,917
	Plaid Cymru	S. Edwards	1,741
	Independent	M. Winter	285
Turnout				48.2
	Labour hold		Swing
	Labour gain from Plaid Cymru		Swing

Aberdare No.2: Blaengwawr (one seat)

Aberdare No.2: Blaengwawr 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	Glyn Owen*	2,320	59.8	−3.2
	Labour	H. Cole	1,558	40.2	+3.2
Majority				19.6	−6.5
Turnout				65.4	−0.1
	Plaid Cymru hold		Swing

Aberdare No.3: Gadlys (one seat)

Aberdare No.3: Gadlys 1977

Party		Candidate	Votes	%	±%
	Labour	V. Llywelyn	955	56.8	+16.3
	Plaid Cymru	A. Skitt	753	43.2	−16.3
Majority				13.5
Turnout				59.4	−15.6
	Labour gain from Plaid Cymru		Swing

Aberdare No.4: Town (one seat)

Aberdare No.4: Town 1977

Party		Candidate	Votes	%	±%
	Independent	P. Williams	968	58.5	+3.4
	Labour	W. Price	681	41.5	−3.4
Majority				16.9	+6.8
Turnout				47.0	−9.6
	Independent hold		Swing

Aberdare No.5: Aberaman (one seat)

Aberdare No.5: Aberaman 1977

Party		Candidate	Votes	%	±%
	Labour	R. Reed	1,836	58.9	−3.1
	Plaid Cymru	D. Barnett	1,281	41.1	+3.1
Majority				17.8	−61.1
Turnout				51.0	−3.2
	Labour hold		Swing

Abertridwr and Senghennydd

Abertridwr and Senghennydd 1977

Party		Candidate	Votes	%	±%
	Ratepayers	J. Davies	1,650	74.6	+5.4
	Labour	E. Wright	563	25.4	−5.4
Majority				49.1	+10.8
Turnout				42.5	−8.2
	Ratepayers hold		Swing

Bedwas and Machen (two seats)

Bedwas and Machen 1977

Party		Candidate	Votes	%	±%
	Labour	Ray Davies	2,580
	Labour	C. Hobbs	2,117
	Liberal	Angus Donaldson	2,088
	Plaid Cymru	T. Davies	1,129
	Conservative	E. Haines	902
	Plaid Cymru	E. Lewis	783
	Independent	I. Edwards	542
Turnout
	Labour hold		Swing
	Labour hold		Swing

Bedwellty No.1 Aberbargoed (one seat)

Bedwellty No.1 Aberbargoed 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	K. Szerard	908	53.6
	Labour	W. Forbes*	785	46.4
Majority				7.3
Turnout				56.7	−0.1
	Plaid Cymru gain from Labour		Swing

Bedwellty No.2 Abertysswg (one seat)

Bedwellty No.2 Abertysswg 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	I. Evans	1,440	57.6	+57.6
	Labour	S. Powell*	1,062	42.4	−24.8
Majority				15.1
Turnout				58.0	+0.3
	Plaid Cymru gain from Labour		Swing

Bridgend (two seats)

Alfred Bowen, who had represented Bridgend on the old Glamorgan County Council prior to re-organization, lost his seat to the Conservatives.

Bridgend 1977

Party		Candidate	Votes	%	±%
	Conservative	A. Parker*	2,747
	Conservative	W. Rutter	2,346
	Labour	Alfred Bowen*	1,616
	Labour	K. Morgan	1,474
	Ratepayers	E. King	1,281
	Ratepayers	G. Morris	980
	Plaid Cymru	D. Jones	491
	Plaid Cymru	E. Lewis	467
Turnout				53.8
	Conservative hold		Swing
	Conservative gain from Labour		Swing

Caerphilly No.1 (one seat)

Caerphilly No.1 1977

Party		Candidate	Votes	%	±%
	Labour	L. Lewis	1,040	51.0	+51.0
	Plaid Cymru	A. Jewell	742	36.4	+36.4
	Conservative	E. Evans	257	12.6	+12.6
Majority				14.6
Turnout				64.8
	Labour hold		Swing

Caerphilly No.2 Llanbradach (one seat)

Caerphilly No.2 Llanbradach 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	Colin Mann	1,249	51.0	−23.8
	Labour	E. White	815	33.3	+8.1
	Conservative	E. Edwards	387	15.8	+15.8
Majority				17.7	−31.8
Turnout				55.4	−3.5
	Plaid Cymru hold		Swing

Caerphilly No.4 (one seat)

Lindsay Whittle unseated Bertie Rowland, who had represented Caerphilly on the former Glamorgan County Council.

Caerphilly No.4 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	Lindsay Whittle	1,340	38.2	+2.3
	Labour	Bertie Rowland*	1,331	40.2	−21.6
	Conservative	R. Lea	640	19.3	+19.3
Majority			9	0.3
Turnout				48.9	+7.4
	Plaid Cymru gain from Labour		Swing

Caerphilly No.5 North (one seat)

Caerphilly No.5 North 1977

Party		Candidate	Votes	%	±%
	Labour	R. Jewell	1,012	51.2	−0.6
	Plaid Cymru	A. Hallett	674	34.1	+34.1
	Conservative	B. Williams	146	7.4	+7.4
	Ratepayers	V. Evans	146	7.4	+7.4
Majority				17.1	+13.6
Turnout				46.5	+4.9
	Labour hold		Swing

Caerphilly No.6 South (one seat)

Caerphilly No.6 South 1977

Party		Candidate	Votes	%	±%
	Independent	H. Richards	781	33.4	−20.1
	Labour	G. Snell	652	27.9	−18.6
	Ratepayers	A. Goodchild	465	19.9	+19.9
	Independent	M. Ryland	443	18.9	+18.9
Majority				5.5	−1.5
Turnout				52.8	+2.8
	Independent hold		Swing

Caerphilly No.7 (one seat)

Caerphilly No.7 1973

Party		Candidate	Votes	%	±%
	Plaid Cymru	R. Davies	921	32.7
	Conservative	H. Paulley	780	27.7
	Labour	G. Lewis	618	22.0
	Independent Labour	E. Dobbs	496	17.6
Majority				5.0
Turnout
	Plaid Cymru hold		Swing

Cardiff Rural (one seat)

Cardiff Rural 1973

Party		Candidate	Votes	%	±%
	Labour	C. Richards	701	36.3	−18.1
	Plaid Cymru	P. Enticott	622	32.2	−13.4
	Conservative	P. Dawkins	347	18.0	+18.0
	Ratepayers	A. Skelhorne	260	13.5	+13.5
Majority				4.1	−4.7
Turnout				53.7	+13.7
	Labour hold		Swing

Cowbridge Rural (one seat)

Cowbridge Rural 1977

Party		Candidate	Votes	%	±%
	Independent	J. David	1,618	62.6	+9.9
	Plaid Cymru	Janet Davies	966	37.4	+37.4
Majority				25.2	+19.9
Turnout				47.5	−4.6
	Independent hold		Swing

Dowlais (one seat)

Dowlais 1977

Party		Candidate	Votes	%	±%
	Labour	T. Lewis	1,245	47.9	−2.4
	Plaid Cymru	P. Jones	1,214	46.7	+46.7
	Liberal	D. Smith	140	5.4	+5.4
Majority			31	1.2	+0.6
Turnout				55.0	+3.4
	Labour hold		Swing

Gelligaer No.1 (one seat)

Gelligaer No.1 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	G. Howells	1,492	47.4	+15.8
	Labour	B. Williams*	1,449	46.0	−22.4
	Conservative	W. Morgan	210	6.7	+6.7
Majority				1.4
Turnout				57.2	+1.4
	Plaid Cymru gain from Labour		Swing

Gelligaer No.2 (one seat)

Davies was elected as an Independent Labour candidate in 1973.

Gelligaer No.2 1977

Party		Candidate	Votes	%	±%
	Labour	J. Davies	1,087	68.1	+26.7
	Plaid Cymru	G. Roberts	509	31.9	+31.9
Majority				36.2
Turnout				54.9	−6.0
	Labour gain from Independent Labour		Swing

Gelligaer No.3 (one seat)

Gelligaer No.3 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	J. Jones	1,710	48.2	−0.4
	Labour	I. Jenkins	1,490	42.0	−9.4
	Conservative	B. Newman	351	9.9	+9.9
Majority				6.2
Turnout				52.3	+8.9
	Plaid Cymru gain from Labour		Swing

Gelligaer No.4 (two seats)

Gelligaer No.4 1977

Party		Candidate	Votes	%	±%
	Labour	A. Rogers*	2,803
	Labour	W. Bowen*	2,693
	Plaid Cymru	A. Evans	1,533
	Plaid Cymru	N. Turner	1,441
	Conservative	C. Collins	550
	Conservative	R. Owen	529
Turnout				49.0	+13.6
	Labour hold		Swing
	Labour hold		Swing

Llantrisant and Llantwitfardre No.1 (four seats)

Llantrisant and Llantwitfardre No.1 1977

Party		Candidate	Votes	%	±%
	Labour	K. Eason*	3,398
	Ratepayers	T. John*	3,098
	Labour	L. Lodwig*	3,067
	Labour	A. Tyrrell*	2,801
	Labour	N. James	2,747
	Conservative	R. Bunnage	2,636
	Conservative	D. Pearse	2,594
	Ratepayers	D. Brown	2,446
	Plaid Cymru	T. Jones	2,332
	Plaid Cymru	T. Phillips	2,252
	Plaid Cymru	D. Morris	2,130
	Plaid Cymru	R. Kennard	2,038
	Liberal	R. Verallo	884
Turnout				63.8
	Labour hold		Swing
	Ratepayers hold		Swing
	Labour hold		Swing
	Labour hold		Swing

Llantrisant and Llantwitfardre No.2 (two seats)

Llantrisant and Llantwitfardre No.2 1977

Party		Candidate	Votes	%	±%
	Labour	D. McDonald	2,867
	Labour	J. Thomas	2,167
	Independent	E. Brinson	1,357
	Plaid Cymru	D. Davies	1,305
	Plaid Cymru	J. Jones	1,199
	Conservative	A. Farnworth	368
Turnout				58.8
	Labour hold		Swing
	Labour hold		Swing

Maesteg No.1 (one seat)

Maesteg No.1 1977

Party		Candidate	Votes	%	±%
	Labour	V. Hart	2,023	69.7
	Plaid Cymru	D. Lewis	678	23.3
	Conservative	M. Rixon	203	7.0
Majority				46.3
Turnout				54.3
	Labour hold		Swing

Maesteg No.2 (one seat)

Maesteg No.2 1977

Party		Candidate	Votes	%	±%
	Liberal	Jennie Gibbs	1,365	59.5	−6.4
	Labour	W. Hayes	758	33.0	−1.1
	Conservative	K. Rowe	172	7.5
Majority				26.4	−5.5
Turnout				54.3	−5.3
	Liberal hold		Swing

Maesteg No.3 (one seat)

Maesteg No.3 1977

Party		Candidate	Votes	%	±%
	Labour	W. Venner	1,428	56.5	−17.5
	Plaid Cymru	T. Pearson	720	28.5	+2.5
	Conservative	G. Jones	378	15.0
Majority				28.0	−19.9
Turnout				49.8	+3.9
	Labour hold		Swing

Merthyr, Cyfarthfa (one seat)

Merthyr, Cyfarthfa 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	M. Phillips	1,474	53.9
	Labour	D. Jones*	1,083	39.6
	Liberal	D. Williams	165	6.5
Majority
Turnout
	Plaid Cymru gain from Labour		Swing

Merthyr No.6 (one seat)

Merthyr No.6 1977

Party		Candidate	Votes	%	±%
	Labour	E. Griffiths	1,614
	Plaid Cymru	B. Richards	1,192
	Communist	R. Evans	106
Majority
Turnout				69.1	−5.3
	Labour hold		Swing

Merthyr No.7 (one seat)

Merthyr No.7 1977

Party		Candidate	Votes	%	±%
	Labour	T. O'Brien	1,344
	Plaid Cymru	J. Gough	980
Majority
Turnout
	Labour hold		Swing

Merthyr Park (two seats)

Merthyr Park 1977

Party		Candidate	Votes	%	±%
	Labour	J. Burns*	1,956
	Plaid Cymru	G. Foster*	1,840
	Labour	D. Williams	1,584
	Plaid Cymru	C. Mathews	1,521
	Conservative	C. Thomas	620
	Communist	A. Jones	539
	Liberal	G. Cooper	288
	Communist	C. Dennett	161
	Liberal	D. Bettel-Higgins	152
Turnout				60.1	+3.1
	Labour hold		Swing
	Plaid Cymru hold		Swing

Merthyr Town (one seat)

Merthyr Town 1977

Party		Candidate	Votes	%	±%
	Labour	T. Davies	1,277
	Plaid Cymru	L. Smith	813
	Conservative	D. Davies	582
	Communist	T. Roberts	112
	Liberal	O. Bettel-Higgins	35
Majority
Turnout
	Labour hold		Swing

Mountain Ash No.1 (one seat)

Mountain Ash No.1 1977

Party		Candidate	Votes	%	±%
	Labour	T. Davies*	1,662
	Plaid Cymru	C. Jones	1,086
	Communist	A. Williams	974
Majority
Turnout
	Labour hold		Swing

Mountain Ash No.2 (one seat)

Mountain Ash No.2 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	N. Thomas	1,066
	Independent	P. Brocklebank	877
	Labour	F. Brooks	789
Majority
Turnout
	Plaid Cymru gain from Labour		Swing

Mountain Ash No.3 (two seats)

Mountain Ash No.3 1977

Party		Candidate	Votes	%	±%
	Labour	S. Lloyd	1,940
	Plaid Cymru	R. Humphreys*	1,797
	Plaid Cymru	G. Owens	1,736
	Labour	H. Evans	1,734
Turnout
	Labour gain from Communist		Swing
	Plaid Cymru hold		Swing

Ogmore and Garw No.1 (one seat)

Ogmore and Garw No.1 1977

Party		Candidate	Votes	%	±%
	Ratepayers	Danny Mordecai	1,263
	Labour	M. David	948
	Plaid Cymru	G. Jones	148
Majority
Turnout
	Ratepayers gain from Labour		Swing

Ogmore and Garw No.2 (two seats)

Ogmore and Garw No.2 1977

Party		Candidate	Votes	%	±%
	Labour	T. Price*	2,476
	Plaid Cymru	E. Merriman*	2,428
	Labour	A. Lock	2,364
	Plaid Cymru	J. Jones	1,590
	Conservative	J. Fenwick	569
	Conservative	M. Eade	487
Turnout
	Labour hold		Swing
	Plaid Cymru hold		Swing

Penybont No.1 (one seat)

Penybont No.1 1977

Party		Candidate	Votes	%	±%
	Conservative	L. Walters	1,081	38.3
	Labour	E. Hayball*	1,002	35.5
	Ratepayers	I. Evans	514	18.2
	Plaid Cymru	P. Tomlin	227	8.0
Majority
Turnout
	Conservative gain from Labour		Swing

Penybont No.2 (one seat)

Penybont No.2 1977

Party		Candidate	Votes	%	±%
	Conservative	W. Board	1,064
	Independent	D. Thomas	783
	Liberal	S. Clark	375
	Independent	D. Davies	149
Turnout				55.1
	Conservative hold		Swing

Penybont No.3 (one seat)

Penybont No.3 1977

Party		Candidate	Votes	%	±%
	Conservative	J. Spurgeon	1,195	41.9
	Labour	A. Cattle	1,186	41.6
	Plaid Cymru	D. Williams	470	16.5
Majority
Turnout				45.8
	Conservative gain from Labour		Swing

Penybont No.4 (one seat)

Penybont No.4 1977

Party		Candidate	Votes	%	±%
	Conservative	David Unwin	1,253	41.3
	Labour	G. Stevens	755	24.9
	Ratepayers	A. Elliott	651	21.5
	Plaid Cymru	S. Thomas	373	12.3
Majority
Turnout				47.2
	Conservative gain from Labour		Swing

Penybont No.5 (two seats)

Penybont No.5 1977

Party		Candidate	Votes	%	±%
	Labour	E. Davies*	2,949
	Labour	M. Jones*	2,911
	Plaid Cymru	V. Morgan-Thornton	1,598
	Plaid Cymru	R. Lewis	1,338
	Conservative	P. Davis	1,160
	Conservative	P. Rixon	984
	Raetepayers	A. Gordon-Cranmer	591
Turnout				58.6
	Labour hold		Swing
	Labour hold		Swing

Penybont No.6 (two seats)

Penybont No.6 1977

Party		Candidate	Votes	%	±%
	Labour	Philip Squire*	1,994
	Independent	W. Barnett*	1,637
	Labour	G. Walters	1,562
	Independent	M. Kennedy	1,263
	Plaid Cymru	G. Charles	743
	Plaid Cymru	D. Jones	649
Turnout				57.6
	Labour hold		Swing
	Independent hold		Swing

Penydarren (one seat)

Penydarren 1977

Party		Candidate	Votes	%	±%
	Labour	T. Mahoney*	1,500	60.2
	Plaid Cymru	J. Price	823	33.0
	Liberal	J. Lewis	170	6.8
Majority
Turnout				52.9
	Labour hold		Swing

Pontypridd No.1 (one seat)

Pontypridd No.1 1977

Party		Candidate	Votes	%	±%
	Labour	W. Williams*	842	39.3
	Plaid Cymru	S. Holcombe	743	34.7
	Independent	K. James	411	19.2
	Conservative	M. Farnworth	147	6.9
Turnout				54.2
	Labour hold		Swing

Pontypridd No.2 Town (one seat)

Pontypridd No.2 Town 1977

Party		Candidate	Votes	%	±%
	Labour	W. Jones	791	33.4
	Plaid Cymru	S. Goodwin	704	29.7
	Liberal	B. Murphy	667	28.2
	Conservative	M. Davis	207	8.7
Majority
Turnout				53.7
	Labour hold		Swing

Pontypridd No.3 (one seat)

Pontypridd No.3 1977

Party		Candidate	Votes	%	±%
	Labour	E. Peck*	1,141	90.1
	Conservative	J. Bunnage	125	9.9
Majority
Turnout				58.6
	Labour hold		Swing

Pontypridd No.4 Trallwn (one seat)

Pontypridd No.4 Trallwn 1977

Party		Candidate	Votes	%	±%
	Liberal	Meriel Murphy*	990	49.7
	Labour	S. Cody	458	23.0
	Plaid Cymru	R. Jones	393	19.7
	Conservative	S. Schofield	150	7.5
Majority
Turnout				62.9
	Liberal hold		Swing

Pontypridd No.5 Rhydyfelin (one seat)

Pontypridd No.5 Rhydyfelin 1977

Party		Candidate	Votes	%	±%
	Labour	J. Davies*	1,103	40.7
	Independent	K. Williams	869	32.0
	Plaid Cymru	C. Holloway	490	18.1
	Conservative	J. Beynon	251	9.3
Turnout				39.2
	Labour hold		Swing

Pontypridd No.6 (one seat)

Pontypridd No.6 1977

Party		Candidate	Votes	%	±%
	Labour	H. Weston*	1,180	44.5
	Liberal	R. Mathews	542	20.5
	Plaid Cymru	E. Henly	522	19.7
	Conservative	L. Jarman	406	15.3
Majority
Turnout				50.3
	Labour hold		Swing

Porthcawl No.1 (one seat)

Porthcawl No.1 1977

Party		Candidate	Votes	%	±%
	Conservative	Peter Hubbard-Miles*	1,959	58.5
	Ratepayers	Chris Smart	569	17.0
	Labour	D. Wilcox	563	16.8
	Plaid Cymru	W. Thomas	257	7.7
Majority
Turnout				48.1
	Conservative hold		Swing

Porthcawl No.2 (one seat)

Porthcawl No.2 1977

Party		Candidate	Votes	%	±%
	Conservative	H. Eastment	1,312	52.0
	Labour	G. McBride*	962	38.1
	Plaid Cymru	R. Fattorini	249	9.9
Majority
Turnout				49.4
	Conservative gain from Labour		Swing

Rhondda No.1 Treherbert (two seats)

Rhondda No.1 Treherbert 1977

Party		Candidate	Votes	%	±%
	Communist	Arthur True*	2,143
	Labour	G. Williams	1,694
	Labour	H. Elliott	1,293
Turnout				62.9
	Communist hold		Swing
	Labour hold		Swing

Rhondda No.2 Treorchy (two seats)

Rhondda No.2 Treorchy 1977

Party		Candidate	Votes	%	±%
	Labour	H. Jones*	1,988
	Labour	G. Rees*	2,007
	Plaid Cymru	P. Davies	1,496
	Plaid Cymru	R. Davies	1,455
	Independent	J. Samson	385
Turnout				59.9
	Labour hold		Swing
	Labour hold		Swing

Rhondda No.3 Pentre (one seat)

Rhondda No.3 Pentre 1977

Party		Candidate	Votes	%	±%
	Labour	E. Jenkins*	1,361	52.1
	Plaid Cymru	M. John	582	22.3
	Conservative	D. Gillespie	356	13.6
	Independent	R. Betteney	311	11.9
Majority
Turnout				59.2
	Labour hold		Swing

Rhondda No.4 Ystrad (one seat)

Rhondda No.4 Ystrad 1977

Party		Candidate	Votes	%	±%
	Labour	D. Thomas*	1,397	53.1
	Plaid Cymru	D. Jones	809	30.7
	Communist	A. Price	426	16.2
Majority
Turnout				52.8
	Labour hold		Swing

Rhondda No.5 (one seat)

Rhondda No.5 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	D. Morgan	1,455	42.6
	Labour	T. Parry*	1,397	40.9
	Conservative	Alan Speake	567	16.6
Majority
Turnout				61.5
	Plaid Cymru gain from Labour		Swing

Rhondda No.6 (one seat)

Rhondda No.6 1977

Party		Candidate	Votes	%	±%
	Labour	C. Winter*	1,463	44.3
	Conservative	P. Leyshon	1,416	42.9
	Plaid Cymru	A. Jones	421	12.8
Majority
Turnout				56.0
	Labour hold		Swing

Rhondda No.7 Penygraig (one seat)

Rhondda No.7 Penygraig 1977

Party		Candidate	Votes	%	±%
	Labour	C. Richards*	1,262	48.5
	Conservative	C. Lindsey	730	28.1
	Plaid Cymru	G. Jones	608	23.4
Majority
Turnout				47.0
	Labour hold		Swing

Rhondda No.8 Porth (two seats)

Rhondda No.8 Porth 1977

Party		Candidate	Votes	%	±%
	Labour	A. Ellis*	1,828
	Labour	L. Rees	1,693
	Ratepayers	T. Jones	1,507
	Ratepayers	E. Fitsall	1,454
	Conservative	R. Tomkinson	650
Turnout				48.9
	Labour hold		Swing
	Labour hold		Swing

Rhondda No.9 (one seat)

Rhondda No.9 1977

Party		Candidate	Votes	%	±%
	Ratepayers	D. May	1,135	40.3
	Labour	S. McElstrim*	1,122	39.8
	Plaid Cymru	M. Fisk	560	19.9
Majority			13
Turnout				61.6
	Ratepayers gain from Labour		Swing

Rhymney Lower, Middle and Upper (one seat)

Rhymney Lower, Middle and Upper 1977

Party		Candidate	Votes	%	±%
	Labour	J. Williams*	1,646	71.9
	Plaid Cymru	A. Lippiett	644	28.1
Majority
Turnout				51.5
	Labour hold		Swing

Treharris (one seat)

Treharris 1977

Party		Candidate	Votes	%	±%
	Labour	T. Richards*	1,477	67.5
	Plaid Cymru	M. Moran	711	32.5
Majority
Turnout				51.2
	Labour hold		Swing

Vaynor and Penderyn No.1 (one seat)

Vaynor and Penderyn No.1 1977

Party		Candidate	Votes	%	±%
	Plaid Cymru	C. Harris	991	52.3
	Labour	M. Byrne*	905	47.7
Majority
Turnout				62.5
	Plaid Cymru gain from Labour		Swing

Vaynor and Penderyn No.2 (one seat)

Vaynor and Penderyn No.2 1977

Party		Candidate	Votes	%	±%
	Labour	T. Smith	729	42.6
	Plaid Cymru	P. Williams	606	35.4
	Conservative	A. Hodges	257	15.0
	Liberal	A. Jenkins	121	7.1
Majority
Turnout				64.4
	Labour hold		Swing