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OSM Postcode Mapping for LL51 9 Postal Sector

The circles on the map above are the postcode unit 'centriods' from Code-Point Open, under the Open Government Licence. The 'centriod' is calculated by taking the average of the coordinates of all the delivery points with that postcode, and then snapping that location to the nearest delivery point in that postcode. The data may be freely used in OpenStreetMap, but please make sure you understand it first. Also please only add postcodes to objects representing addressable entities; do not add the postcode centroids as themslves. Suggested source tag code-point_open

The circles are coloured by whether or not there is at least one OSM object with that value in its addr:postcode tag. Click on a point to see the postcode. The numbers in brackets are the number of OSM objects with that postcode.

The centroids are the location of the nearest 'delivery point' to the arithmetic mean of the coordinates of all the delivery points within that unit. Those points with a codepoint PQI greater than 40 are excluded from the map above. (Higher values are typically not geographically accurate. In particular, PQI=50 is used for new postcodes before the location has been determined. The location given for such postcodes seems to be derived from other existing postcodes with similar units letters, which may not be close to the new postcode.)

The pale blue lines from the circles join each Code-Point Open centroid to the mean coordiantes of all the OSM objects with that postcode. (For ways an relations, the centre of the rectangular bounding box is used at the coordinates for the OSM object.) Long lines may indicate missing or incorrect OSM objects for that postcode. In particular, if all the postcodes in a givne unit are correctly mapped, the circle should be located on the nearest delivery point within that postcode to the other end of the blue line.

The OSM data for the number of objects with each unit comes from Taginfo GB. It is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. (Current data is from 1970‑01‑01 00:00:00 Z.) The data used to compute the OSM mean position comes from the Overpass API and is updated less frequently, usually about once a week. (Current data is from 2024‑03‑23 18:50:30 Z.)

District Sector Units Geo. Units Mapped %
LL51 9 45 45 4 8.9%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
LL51 9AB 50 2023‑04 2 0
LL51 9AJ 10 0
LL51 9AL 10 0
LL51 9AQ 10 2 1
LL51 9AX 10 0
LL51 9AZ 10 1
LL51 9BQ 10 0
LL51 9DJ 10 0
LL51 9DQ 10 0
LL51 9DX 10 0
LL51 9DZ 10 0
LL51 9EJ 10 0
LL51 9EQ 10 0
LL51 9EX 10 0
LL51 9EZ 10 0
LL51 9HX 10 0
LL51 9HZ 10 0
LL51 9LJ 10 0
LL51 9LQ 10 0
LL51 9LX 10 0
LL51 9LZ 10 0
LL51 9NJ 10 0
LL51 9NQ 10 0
LL51 9NX 10 0
LL51 9NZ 10 0
LL51 9PJ 10 Rhwngddwryd 1
LL51 9PQ 10 0
LL51 9RJ 10 0
LL51 9RQ 10 0
LL51 9RX 10 0
LL51 9RZ 10 0
LL51 9SJ 10 0
LL51 9SQ 10 0
LL51 9SX 10 0
LL51 9SZ 10 1
LL51 9TJ 10 0
LL51 9TQ 10 0
LL51 9TX 10 0
LL51 9TZ 10 0
LL51 9UJ 10 0
LL51 9UQ 10 0
LL51 9UX 10 0
LL51 9YT 10 0
LL51 9YU 10 0
LL51 9YY 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
LL51 9AQ 1 w264644146
LL51 9AZ 1 n7913565254
LL51 9SZ 1 w385054788
Data derived from OpenStreetMap data, © OpenStreetMap Contributors, licensed under Open Data Commons Open Database License (ODbL). Data derived in part using Code-Point Open under the Open Government Licence v3; Contains OS data © Crown copyright and database right 2020; Contains Royal Mail data © Royal Mail copyright and Database right 2016; Contains National Statistics data © Crown copyright and database right 2020.