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 | % |
---|---|---|---|---|---|
LD4 | 4 | 58 | 58 | 5 | 8.6% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
LD4 4AA | 10 | 0 | ||||
LD4 4AB | 10 | 0 | ||||
LD4 4AE | 10 | 0 | ||||
LD4 4AF | 10 | 0 | ||||
LD4 4AG | 10 | 0 | ||||
LD4 4AH | 10 | 0 | ||||
LD4 4AJ | 10 | 0 | ||||
LD4 4AL | 10 | 0 | ||||
LD4 4AN | 10 | 0 | ||||
LD4 4AP | 10 | 0 | ||||
LD4 4AR | 10 | 0 | ||||
LD4 4AS | 10 | 0 | ||||
LD4 4AT | 10 | 1 | ||||
LD4 4AU | 10 | 0 | ||||
LD4 4AW | 10 | 0 | ||||
LD4 4AY | 10 | 0 | ||||
LD4 4BA | 10 | 0 | ||||
LD4 4BB | 10 | 0 | ||||
LD4 4BD | 10 | 0 | ||||
LD4 4BF | 10 | 2021‑12 | 0 | |||
LD4 4BG | 10 | 0 | ||||
LD4 4BH | 10 | 0 | ||||
LD4 4BL | 10 | 0 | ||||
LD4 4BN | 10 | 0 | ||||
LD4 4BS | 10 | 0 | ||||
LD4 4BT | 10 | 0 | ||||
LD4 4BU | 10 | 0 | ||||
LD4 4BW | 10 | 0 | ||||
LD4 4BY | 10 | 0 | ||||
LD4 4DA | 10 | 0 | ||||
LD4 4DB | 10 | 0 | ||||
LD4 4DD | 10 | 0 | ||||
LD4 4DE | 10 | 0 | ||||
LD4 4DF | 10 | 0 | ||||
LD4 4DG | 10 | 0 | ||||
LD4 4DH | 10 | 0 | ||||
LD4 4DJ | 10 | 0 | ||||
LD4 4DL | 10 | 0 | ||||
LD4 4DN | 10 | 0 | ||||
LD4 4DP | 10 | 0 | ||||
LD4 4DQ | 10 | 2022‑06 | 0 | |||
LD4 4DR | 10 | 0 | ||||
LD4 4DS | 10 | 0 | ||||
LD4 4DU | 10 | 0 | ||||
LD4 4DW | 10 | 0 | ||||
LD4 4EA | 10 | 2 | ||||
LD4 4EB | 10 | 1 | ||||
LD4 4ED | 10 | 0 | ||||
LD4 4EE | 10 | 0 | ||||
LD4 4EF | 10 | 0 | ||||
LD4 4EG | 10 | 1 | ||||
LD4 4EH | 10 | 1 | ||||
LD4 4EL | 10 | 0 | ||||
LD4 4EN | 10 | 0 | ||||
LD4 4EP | 10 | 0 | ||||
LD4 4ER | 10 | 0 | ||||
LD4 4ES | 10 | 0 | ||||
LD4 4EW | 10 | 0 |
Units with street mismatches in this sector:
Unit | Mapped | Dominant Street | OSM Object | Tagged Street |
---|---|---|---|---|
LD4 4AT | 1 | w401089397 | ||
LD4 4EA | 2 | w439955844 | ||
LD4 4EA | 2 | w1002266001 | ||
LD4 4EB | 1 | w1002266008 | ||
LD4 4EG | 1 | w1002266004 | ||
LD4 4EH | 1 | w1002266002 |