Royal Mail says the UK has more than 1.7 million postcodes, covering about 28 million addresses.
Pupils will be put into ballots within certain postcodes, so proximity to schools still counts for something.
But both postal staff and residents have been left confused, as the two roads also have similar postcodes.
In the poorest postcodes, children were three times more likely to be hit by cars than in better-off areas.
It also said some courier companies were refusing to deliver to certain postcodes.
It was a nation divided by postcodes and accents, schools and last names.
Last month Bromford Support launched their "No Postcodes" video campaign, so named because many inner-city gangs are divided into postcode area.
BBC: Bromford Support group urges more help for gang members
Bexley had six of the 10 worst postcodes studied for food hygiene.
The council said the service did not have a problem with accents but struggled to accurately recognise some numbers and letters in postcodes.
However, Royal Mail is also expected to change the postcodes of some properties but these will not be finalised until the end of March.
Of that 197, we obtained postcodes for 153 people and have plotted their home addresses against a map showing the deprivation of local neighbourhoods.
There are more than 5, 000 postcodes currently on the list of weak broadband coverage, but the irony is that the survey is taking place online.
Not all postcodes will lead you to your county police authority.
It said it followed some "initial teething problems with the recognition of the combination of numbers and letters in postcodes, rather than being an issue with accents".
Food outlets in a part of south-east London have the worst hygiene standards of more than 2, 000 postcodes in England, Northern Ireland and Wales, an investigation has found.
At present, the government monitors university intake on the basis of whether the students went to a state or private school, their social class and their home postcodes.
Although the new addresses came into effect at the start of February, a further change by Royal Mail to postcodes will not be completed until the end of March.
Michael Purton, of Walson Way, said some of the addresses in Walson Way had only the last letter of their postcodes separating them from the households in nearby Watson Way.
Mr Cook said a universal method was needed as coastguards used latitude and longitude when they rescued at sea, and people used postcodes and street names when they gave directions.
He said the area is surrounded by London postcodes such as E6 and E12 and that if Ilford had an east London (E) postcode it would help bring more business into the area.
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