A speed data test carried out by uSwitch.com found that Williamson Road in Kent has a download speed 135 times lower than the fastest street in Sandy Lane in Cannock, Staffordshire.
With an average speed of 0.54Mbps, Williamson Road is far from the national average of 22.8Mbps and even further away from Sandy Lane at 72.86Mbps.
Ewan Taylor-Gibson, broadband expert at uSwitch.com, said: "A recent House of Lords report called for broadband to be defined as a public utility and voiced concerns about the delivery of superfast services. Terrible speeds can isolate people and take their toll on businesses, schools, even house prices. A nationwide rollout of fibre broadband to the furthest and most remote corners of the UK has never been more urgent."
To have an idea, on Williamson Road it would take 19 hours to download a two-hour HD film, 2.5 hours to download a 45-minute HD TV show and 49 minutes to download a 20-song music album.
On the other hand at Sandy Lane, the same comparison would denote eight minutes to download a two-hour HD film, one minute to download a 45-minute HD TV show, and 22 seconds to download a 20-song music album.
Mr Gibson added: "On the UK’s slowest street broadband speeds are so sluggish you could fly to the Bahamas and back again in the time it takes to download a film."
The research revealed that 34% of Britons struggle with speeds of 5Mbps or less, with 23% experiencing speeds of less than 3Mbps.
"Likely causes include the user’s distance from the nearest exchange or issues within the properties themselves. Wireless connections can be affected by the thickness of walls, for example, but your broadband provider can usually offer a solution if that’s the case," Mr Gibson added.
Superfast speeds of 30+Mbps have also registered an increase, with 22% of users able to use the internet at those speeds compared to 15% last year.
A survey led by uSwitch.com also exposed that 31% of consumers don’t believe they can access fibre broadband in their local area, despite reports suggesting that it is available to 78% of the population.
"Superfast broadband is now available to more than three quarters of the UK, but nearly a third (31%) don’t realise they can get it. We looked at which of the 30 slowest streets had superfast availability and, interestingly, 37% of them do, but residents have obviously chosen not to take up superfast services," Mr Gibson continued.
The speed data test also highlighted the difference between the North and South of England, with the North registering twice as many streets with higher rates of Mbps compared to the South based on the 30 fastest streets.
Despite having two of the slowest streets in the country in broadband terms, Scotland has been found to have some of the healthiest internet speeds with six of fastest streets for broadband
The average download speed varies across the nation within small distances.
Norfolk appears four times in the slowest broadband ranks, more than any other part of the county with the centre of Norwich boosting an internet disparity of 0.96 Mbps compared to its slowest street just 25 minutes away.
Like Cannok in Staffordshire, Stoke-on-Trent has two of the UK’s fastest streets for broadband, but it’s pushed back by Cheadle Road in Alton, one of the slowest streets in the country and 54 times slower than Werrington Road in Bucknall, which is in the same county.
Kent holds the record for the number of streets with poor connections with Williamson Road in Romney Marsh only boosting 0.54Mbps, being 106 times slower than Becket Mews in Canterbury with an average speed of 57Mbps.
In the capital, Uxbridge Road in Feltham has been registering speeds of only 1.03Mbps despite Bulwer Gardens in Barnet, Byron Road in South Croydon and Dalrymple Road in Brockley being amongst the fastest streets for broadband in the country.
"More needs to be done to increase awareness of fibre availability and its benefits. Superfast broadband isn’t as expensive as some users might think, with prices averaging an extra £9 a month on top of standard broadband costs," Mr Gibson said.
The study was carried over a period of six months and included more than one million speed tests run by broadband users.
