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 | % |
---|---|---|---|---|---|
WC1N | 2 | 75 | 73 | 51 | 69.9% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
WC1N 2AA | 10 | 0 | ||||
WC1N 2AB | 10 | Mecklenburgh Square | 1 | |||
WC1N 2AD | 10 | Mecklenburgh Square | 2 | |||
WC1N 2AF | 10 | 0 | ||||
WC1N 2AG | 10 | 0 | ||||
WC1N 2AH | 10 | 0 | ||||
WC1N 2AJ | 10 | 0 | ||||
WC1N 2AL | 10 | 0 | ||||
WC1N 2AN | 10 | Mecklenburgh Square | 1 | |||
WC1N 2AP | 10 | Mecklenburgh Square | 1 | |||
WC1N 2AT | 10 | John Street | 7 | |||
WC1N 2AY | 10 | 0 | ||||
WC1N 2BF | 10 | John Street | 2 | |||
WC1N 2BG | 10 | 0 | ||||
WC1N 2BH | 10 | John Street | 2 | |||
WC1N 2BJ | 10 | 0 | ||||
WC1N 2BL | 10 | John Street | 1 | |||
WC1N 2BQ | 10 | 0 | ||||
WC1N 2BS | 10 | John Street | 1 | |||
WC1N 2BW | 10 | John Street | 1 | |||
WC1N 2BX | 10 | John Street | 1 | |||
WC1N 2BY | 10 | John Street | 1 | |||
WC1N 2DE | 10 | John Street | 1 | |||
WC1N 2DG | 10 | 0 | ||||
WC1N 2DL | 10 | John Street | 3 | |||
WC1N 2DR | 10 | 2013‑07 | 0 | |||
WC1N 2EB | 10 | John Street | 6 | |||
WC1N 2ED | 10 | John Street | 1 | |||
WC1N 2ES | 10 | John Street | 9 | |||
WC1N 2EU | 10 | 0 | ||||
WC1N 2HY | 10 | Kings Mews | 2 | |||
WC1N 2HZ | 10 | Kings Mews | 2 | |||
WC1N 2JA | 10 | Kings Mews | 1 | |||
WC1N 2JB | 10 | 0 | ||||
WC1N 2JE | 10 | 0 | ||||
WC1N 2JF | 10 | Northington Street | 4 | |||
WC1N 2JG | 10 | Northington Street | 4 | |||
WC1N 2JJ | 10 | 0 | ||||
WC1N 2JL | 10 | 0 | ||||
WC1N 2JN | 10 | North Mews | 1 | |||
WC1N 2JP | 10 | 0 | ||||
WC1N 2JQ | 10 | Northington Street | 1 | |||
WC1N 2JS | 10 | Doughty Street | 2 | |||
WC1N 2JT | 10 | Doughty Street | 6 | |||
WC1N 2JU | 10 | Roger Street | 1 | |||
WC1N 2JW | 10 | 0 | ||||
WC1N 2JX | 10 | 0 | ||||
WC1N 2JY | 10 | Doughty Street | 1 | |||
WC1N 2JZ | 10 | Doughty Street | 1 | |||
WC1N 2LA | 10 | 0 | ||||
WC1N 2LD | 10 | 0 | ||||
WC1N 2LE | 10 | 0 | ||||
WC1N 2LF | 10 | Doughty Street | 4 | |||
WC1N 2LG | 10 | 2021‑12 | 0 | |||
WC1N 2LH | 10 | Doughty Street | 1 | |||
WC1N 2LJ | 10 | Doughty Street | 1 | |||
WC1N 2LN | 10 | 0 | ||||
WC1N 2LQ | 10 | 0 | ||||
WC1N 2LR | 10 | Doughty Street | 2 | |||
WC1N 2LS | 10 | Doughty Street | 3 | |||
WC1N 2LW | 10 | Doughty Street | 1 | |||
WC1N 2LX | 10 | Doughty Street | 2 | |||
WC1N 2LY | 10 | 2017‑01 | 0 | |||
WC1N 2LZ | 10 | 2019‑04 | 0 | |||
WC1N 2NA | 10 | 2 | 0 | |||
WC1N 2NB | 10 | Johns Mews | 1 | |||
WC1N 2NE | 10 | Johns Mews | 2 | |||
WC1N 2NP | 10 | 0 | ||||
WC1N 2NR | 10 | Northington Street | 3 | |||
WC1N 2NS | 10 | Johns Mews | 2 | |||
WC1N 2NT | 10 | Northington Street | 1 | |||
WC1N 2NU | 10 | 0 | ||||
WC1N 2NW | 10 | Northington Street | 4 | |||
WC1N 2NX | 10 | John's Mews | 1 | |||
WC1N 2NY | 10 | Mecklenburgh Square | 2 | 1 | ||
WC1N 2NZ | 10 | 0 | ||||
WC1N 2PA | 10 | John's Mews | 8 | |||
WC1N 2PB | 10 | Roger Street | 2 | |||
WC1N 2PF | 10 | Doughty Mews | 13 | |||
WC1N 2PG | 10 | Doughty Mews | 15 | |||
WC1N 2PH | 10 | Doughty Street | 1 | |||
WC1N 2PL | 10 | Doughty Street | 15 | |||
WC1N 2PN | 10 | Doughty Street | 3 | |||
WC1N 2QA | 10 | 2013‑07 | Mecklenburgh Square | 2 | 1 | |
WC1N 2QL | 10 | 2 | 0 | |||
WC1N 2WB | 10 | 790 | 0 | |||
WC1N 2WH | 10 | 2018‑01 | 790 | 0 | ||
WC1N 2WS | 10 | 790 | 0 |
Units with street mismatches in this sector:
Unit | Mapped | Dominant Street | OSM Object | Tagged Street |
---|---|---|---|---|
WC1N 2JG | 4 | Northington␣Street | n3272637127 | North␣Mews |
WC1N 2PB | 2 | Roger␣Street | n383932467 |