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OSM Postcode Mapping for WC2N 4 Postal Sector

The circles on the map above are the postcode unit 'centriods' from Code-Point Open, 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 data may be freely used in OpenStreetMap, with the suggested source tag code-point_open

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. Only those points with a codepoint PQI less than or equal to 40 are show in 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 is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. The data used to compute the OSM mean position is updated less frequently, usually about once a week.

District Sector Units Geo. Units Mapped %
WC2N 4 53 53 23 43.4%

All units within this sector:

Unit Street Name PQI ML Mapped
WC2N 4AA St. Martin's Lane 10 2
WC2N 4AG Saint Martin's Lane 10 1
WC2N 4AJ 10 0
WC2N 4AL Saint Martin's Court 10 1
WC2N 4AP Saint Martin's Lane 10 1
WC2N 4AS 10 0
WC2N 4AT 10 0
WC2N 4AU St. Martin's Lane 10 1
WC2N 4AX 10 0
WC2N 4AZ 10 0
WC2N 4BA St. Martin's Lane 10 1
WC2N 4BD 10 0
WC2N 4BE 10 2 0
WC2N 4BF 10 2 0
WC2N 4BG 10 0
WC2N 4BJ 10 0
WC2N 4BN 10 0
WC2N 4BP Bedfordbury 10 2
WC2N 4BW 10 0
WC2N 4DD William IV Street 10 1
WC2N 4DH 10 0
WC2N 4DN 10 0
WC2N 4DQ 10 0
WC2N 4DS 10 0
WC2N 4DU 10 0
WC2N 4DW William IV Street 10 1
WC2N 4EA Saint Martin's Lane 10 5
WC2N 4EH 10 0
WC2N 4EJ 10 2 0
WC2N 4ER Saint Martin's Lane 10 5
WC2N 4ES St. Martin's Lane 10 1
WC2N 4EZ 10 0
WC2N 4HE 10 0
WC2N 4HG Chandos Place 10 4
WC2N 4HN Agar Street 10 1
WC2N 4HP 10 0
WC2N 4HS Chandos Place 10 2
WC2N 4HU Chandos Place 10 1
WC2N 4HW 10 0
WC2N 4HX St. Martin's Lane 10 2 1
WC2N 4HZ 10 0
WC2N 4JF Duncannon Street 10 1
WC2N 4JH Trafalgar Square 10 1
WC2N 4JL 10 0
WC2N 4JP 10 0
WC2N 4JS St. Martin's Lane 10 3
WC2N 4LA New Row 10 1
WC2N 4LD 10 0
WC2N 4LE 10 0
WC2N 4LF New Row 10 1
WC2N 4LH New Row 10 2
WC2N 4LJ 10 0
WC2N 4LL 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
WC2N 4EA 5 Saint␣Martin's␣Lane w160683918 St␣Martin's␣Lane
WC2N 4EA 5 Saint␣Martin's␣Lane n3159073264 St.␣Martin's␣Lane
WC2N 4ER 5 Saint␣Martin's␣Lane w151297115 St␣Martin's␣Lane
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.