One in 25 older people living alone and without heating in some areas
It's affecting more than 700 over-65s across Essex
New analysis suggests one in 25 older people living alone in some areas of England and Wales have no central heating.
In Essex, 792 older people are being affected.
Southend-On-Sea's elder lone population has seen 2.2% (246 people) living without central heating.
Elsewhere across Essex, Watford had 2.5% (97 people), Colchester had 1.6% (160 people), with Braintree having 1.6% (139 people) and Chelmsford coming in with 1.5% (150 people).
Overall, more than 66,000 over-65s across England and Wales are likely to be living alone without central heating.
This is according to analysis of census 2021 data by the PA news agency.
Age UK described the findings as being "of tremendous concern" and warned of "potentially serious consequences" for older people's health and wellbeing.
Some 11 local authority areas recorded at least 4% of people aged 65 and over living alone with no central heating.
Barrow-in-Furness in Cumbria had the highest proportion at 5.4% (262 people), followed by Gwynedd in north-west Wales (4.6% or 401 people), Portsmouth (4.5% or 498), and Pendle in Lancashire (4.4% or 237).
London boroughs Waltham Forest, Lambeth and Westminster were also among the highest areas, with 4.3% (371 people), 4.1% (425) and 4.0% (407) respectively.
Having no central heating is one of the household characteristics used as an indicator of deprivation.
There were 3.1 million one-person households aged 65 and over in England and Wales on March 21 2021, the day of the census, and of those 2.1% - 66,027 - had no central heating.
The analysis also found that more than 100 local authority areas had at least two-fifths of older people living alone who are disabled - another indicator of deprivation.
The definition of disabled used by the census is people who have assessed their day-to-day activities as limited by long-term physical or mental health conditions or illnesses.
While Blaenau Gwent had the highest proportion of disabled older people living alone - 50.7% or 2,288 people - it was among the areas with the lowest proportion of older people living alone without central heating, at 0.8% or 36 people.
County Durham, North East Derbyshire and Hart in Hampshire all had the lowest proportion of lone older people without central heating, at 0.7%.
After Blaenau Gwent, the areas with the highest percentage of disabled older people living alone were Knowsley (49.7% or 4,269 people) and Liverpool (49.1% or 13,256 people).
'Feelings of loneliness and disconnection from society'
Charity director at older people's charity Age UK, Caroline Abrahams, told PA: "Having limited money in later life really impacts day-to-day living, exacerbating feelings of loneliness and disconnection from society.
"These figures are of tremendous concern, as older people lacking central heating often find it very difficult to stay warm during the winter months with potentially serious consequences for their health and wellbeing.
"Living alone can make this situation worse as it means that one person's income has to stretch further to cover the fixed costs of heating a home, and it can, in some cases, lead to social isolation, which can have additional negative consequences."
Ms Abrahams called on the Government to "make sure that it is prepared for next winter".
She added: "Expanding central heating access and providing suitable alternatives to keep older people warm will be absolutely key."
When looking at the proportion of older people living alone in one-bedroom accommodation, the local authorities with the highest figures are all in London, with Westminster top of the list (52.4% or 5,272 people), followed by Camden (48.7%) and Hackney (46.9%).
Southampton (34.6%), Brighton & Hove (33.7%) and Portsmouth (30.7%) have the highest proportion for areas outside London.
Age UK said anyone who is struggling, or their concerned families and friends, can contact its free Age UK advice line on 0800 169 65 65 which is open every day from 8am until 7pm.
Miliband: 'deeply concerning and a disgrace'
Labour's shadow climate change secretary, Ed Miliband, said: "These figures are deeply concerning. No person in Britain should have to live in a cold home, and it is a disgrace that this is happening under Rishi Sunak and the Conservatives.
"Labour would launch a national Warm Homes Plan to upgrade every home that needs it, so that every family can have the warmth they need and cheaper energy bills.
"And with our mission to make Britain a clean energy superpower, we will cut bills for good."
Many are struggling with the cost of living crisis:
Interest rates and inflation go up
Inflation rose by 8.8% in the 12 months to January 2023, down from 9.2% in December 2022. With interest rates also rising to 4%, those saving money will earn more interest on their finances, whilst those paying mortgages would pay more interest to the bank.
Energy bills
The price of energy went up incredibly as the cost of living crisis hit, with the gas price spike caused largely by the war in Ukraine. The price cap - which is set by an independent regulator to help offset costs onto customers - was set to rise to £3,549 for an average home in October but a price freeze from the government restricted the typical bill to £2,500. That's still an increase of 27% from the previous energy cap and as it's a cap on unit cost, the more energy you use the higher your bill will be.
Food prices
The cost of a weekly shop also has gone up as a result of the cost of living crisis. As a result of the war in Ukraine, a number of products including cooking oils and wheat have been disrupted. This means that several products are now considerably more expensive, driving bills up for customers.
Prices at the pumps
The average cost of petrol has also rose to unprecedented levels. Supply lines for petrol have been thrown into doubt as a result of the war in Ukraine, as Russia is a large export partner for gas, oil and fuel. In April 2022, the average price for a litre of petrol on the forecourt was 160.2p, whilst a litre of diesel would cost 170.5p. By late June 2022 the price had risen to an average of 190.9p for a litre of unleaded and 198.9p for a litre of diesel. In March 2023 the price wass on average of 147.03 in petrol and 167.04 in diesel.
Average cost of filling up a car with petrol hits £100
On 9th June 2022, the average cost of filling up a car with petrol hit £100 for the first time ever. Diesel had already hit that milestone. It comes as the cost of fuel hit a record high of one pound eighty a litre. The 2p rise was the biggest daily jump in 17 years. Prices have dropped by at least 20p per litre since the high point.