Mapping missing postcodes in the UK

This helpful tool from Robert Whittaker shows that currently only 25% of postcodes in the UK have been mapped. We have been making progress, but it is slow.

I like using MapRoulette to track progress and easily give me a random “task” to do. And so I have made a challenge for the missing postcodes in my area:

I have compared current taginfo stats with Code-Point Open to find the postcodes that have not been mapped yet, and so can easily do the same for any other area. (The size limit for a challenge is 50 000 tasks and with 1 262 429 missing postcodes, that’s clearly too much for one).

Let me know which postcode area you want a challenge for and I can make it and share a link here.

As noted in the task instructions, consider using the NSUL postcode overlay to see postcodes for all buildings/UPRNs around and then you can add the appropriate postcode to all nearby addresses.

Also let me know if you think the challenge description or task instructions could be improved.


Glad to see you using the NSUL postcode layer. My thanks to Mapbox for continuing to support the cost of this layer. :star_struck:

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It’s great. Have you been updating it? I’m wondering if it’s the layer or the NSUL data that is missing some new developments I’ve come across.