United Kingdom Postcodes

United Kingdom

Image of United Kingdom on the map
Image of United Kingdom on the map

United Kingdom on the map

Everyone in the UK has a postal code. It is used to ensure that postal items arrive exactly at their addresses. But this system did not exist before, the need for it only appeared in the middle of the 19th century. Then the population of London began to grow, and so did the number of postal items. The main problem was that often the wrong addresses were used and some streets in London were named the same way. All this led to errors, so from the early 1850s it was decided to change the street names. Even though most wealthy families were against the renaming because they lived on streets named after their ancestors. 

London and its postal districts 

To make the postal system even more efficient, it was decided to begin dividing the capital into districts and to establish its own post office in each of these districts. The resulting 10 districts (or counties), which were located within a 12-mile radius from the heart of London

What came of this?

This procedure was implemented over two years, 1857 and 1858. 

The result: 

The movement of mail in London was expedited, particularly those letters that were now sorted at local offices, although they had previously had to be taken to a single main office. 
Errors were reduced: there was no confusion about addresses. 

But the main work was yet to come. After a while, some London boroughs were merged, some were split, others were partially merged with their neighbors. Gradually the boroughs acquired the boundaries in which they remain today. 

Regional boroughs

After the postal system was reformed in London, innovations appeared in other major British cities. Now to designate a district geographically, the first letter of the city’s name was used. That is, if it was Manchester, the letter «M» was used, and then the number. 

The first city of the province, which was divided into districts, was Liverpool, then the same divisions applied to Manchester, Birmingham, Edinburgh, Bristol, Newcastle, Glasgow, etc. 

Sub-district numbers

The London postal system was improved during the First World War when the boroughs were divided into sub-districts. The division that was made at that time is still in use today. At that time, though, the division was made out of necessity: to make it easier for temporary staff, who were replacing those who had gone to the front, to do the sorting. The subdistricts now had their own numbers. 

Testing the postal codes

After the war was over, it was realized that a nationwide postal code scheme was needed that would allow mail to be sorted automatically, using machines. 
Thus the zip codes still in use today were tested in the late fifties at Norwich. The first three characters of the code echoed the initial letters of the town’s name, and the last three indicated a particular street. Large companies, businesses, industries, and brands developed their own postal codes. 

During testing, sorting machines appeared in the city of Norville. These machines operated in such a way that workers simply entered the codes to sort the letters. However, this test was not as successful as one would have liked because again errors were detected. 

As a result, work began on optical character recognition. Then came video coding and integrated mail processors.

We decided to make it easy for you to find postal codes and collected all current United Kingdom postal codes in one place.

Postal codes are used to simplify the sorting of mail and speed up delivery. How correctly the zip code is entered determines how the letter is delivered. The numbers you will see are codes that indicate certain regions. In simple terms, these numbers help your letter get to where it needs to go.

Use the search to find the area code for each region in United Kingdom. This will help you get your mailing done right.

What are Postcodes for?

They are needed to simplify and speed up mail sorting and generally to speed up delivery.

ZIP or Postal code data is an integral part of business operations. It is an important parameter for sending mail, detecting fraud, or researching demographic information.

The role of the postal code is to process data quickly and efficiently in the United Kingdom. Errors in postal codes can cause delays in data processing. Each digit in a ZIP code carries a meaning.