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 | 3 | 108 | 106 | 59 | 55.7% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
WC1N 3AA | 10 | 2 | 0 | |||
WC1N 3AB | 10 | 2 | 0 | |||
WC1N 3AD | 10 | Old Gloucester Street | 6 | |||
WC1N 3AE | 10 | Old Gloucester Street | 1 | |||
WC1N 3AF | 10 | Southampton Row | 5 | |||
WC1N 3AH | 10 | 0 | ||||
WC1N 3AJ | 10 | 0 | ||||
WC1N 3AL | 10 | Old Gloucester Street | 1 | |||
WC1N 3AN | 10 | Old Gloucester Street | 1 | |||
WC1N 3AP | 10 | Cosmo Place | 4 | |||
WC1N 3AQ | 10 | Queen Square | 2 | |||
WC1N 3AR | 10 | Queen Square | 6 | |||
WC1N 3AS | 10 | Old Gloucester Street | 4 | |||
WC1N 3AT | 10 | Queen Square | 1 | |||
WC1N 3AU | 10 | Queen Square | 3 | |||
WC1N 3AX | 10 | Old Gloucester Street | 3 | |||
WC1N 3AY | 10 | 2 | 0 | |||
WC1N 3AZ | 10 | Queen Square | 1 | |||
WC1N 3BA | 10 | 2 | 0 | |||
WC1N 3BB | 10 | 2 | 0 | |||
WC1N 3BD | 10 | 2013‑07 | 2 | 0 | ||
WC1N 3BG | 10 | Queen Square | 3 | |||
WC1N 3BH | 10 | Queen Square | 2 | |||
WC1N 3BJ | 10 | 2023‑01 | 0 | |||
WC1N 3BP | 10 | Boswell Street | 1 | |||
WC1N 3BT | 10 | 0 | ||||
WC1N 3BW | 10 | 2 | 0 | |||
WC1N 3DA | 10 | Great James Street | 1 | |||
WC1N 3DB | 10 | Great James Street | 3 | |||
WC1N 3DF | 10 | Great James Street | 2 | |||
WC1N 3DH | 10 | Great James Street | 3 | |||
WC1N 3DN | 10 | Great James Street | 1 | |||
WC1N 3DP | 10 | Great James Street | 4 | |||
WC1N 3EA | 10 | 0 | ||||
WC1N 3EB | 10 | 0 | ||||
WC1N 3EE | 10 | 0 | ||||
WC1N 3EF | 10 | Millman Street | 1 | |||
WC1N 3EG | 10 | 0 | ||||
WC1N 3EH | 10 | 2018‑07 | 0 | |||
WC1N 3EN | 10 | 0 | ||||
WC1N 3EP | 10 | Millman Street | 7 | |||
WC1N 3EQ | 10 | 0 | ||||
WC1N 3ER | 10 | Millman Street | 6 | |||
WC1N 3ES | 10 | Great James Street | 9 | |||
WC1N 3EW | 10 | 0 | ||||
WC1N 3EY | 10 | Great James Street | 3 | |||
WC1N 3GS | 10 | 2 | 0 | |||
WC1N 3HA | 10 | 0 | ||||
WC1N 3HB | 10 | Great James Street | 10 | |||
WC1N 3HG | 10 | 0 | ||||
WC1N 3HR | 10 | 0 | ||||
WC1N 3HS | 10 | 0 | ||||
WC1N 3HT | 10 | 0 | ||||
WC1N 3HZ | 10 | 0 | ||||
WC1N 3JB | 10 | Great Ormond Street | 6 | |||
WC1N 3JE | 10 | 3 | 0 | |||
WC1N 3JH | 10 | Great Ormond Street | 3 | 2 | ||
WC1N 3JJ | 10 | 2013‑07 | 0 | |||
WC1N 3JL | 10 | 0 | ||||
WC1N 3JP | 10 | 0 | ||||
WC1N 3JQ | 10 | Great Ormond Street | 1 | |||
WC1N 3JT | 10 | 0 | ||||
WC1N 3JW | 10 | Orde Hall Street | 15 | |||
WC1N 3JX | 10 | 0 | ||||
WC1N 3JZ | 10 | Boswell Street | 1 | |||
WC1N 3LA | 10 | Richbell Place | 1 | |||
WC1N 3LB | 10 | 3 | 0 | |||
WC1N 3LD | 10 | Lamb's Conduit Street | 1 | |||
WC1N 3LE | 10 | Lamb's Conduit Street | 5 | |||
WC1N 3LH | 10 | Lamb's Conduit Street | 2 | |||
WC1N 3LJ | 10 | Lamb's Conduit Street | 3 | 2 | ||
WC1N 3LL | 10 | Lamb's Conduit Street | 1 | |||
WC1N 3LN | 10 | 0 | ||||
WC1N 3LP | 10 | Lamb's Conduit Street | 1 | |||
WC1N 3LQ | 10 | 0 | ||||
WC1N 3LR | 10 | 0 | ||||
WC1N 3LS | 10 | 0 | ||||
WC1N 3LT | 10 | 0 | ||||
WC1N 3LU | 10 | 0 | ||||
WC1N 3LW | 10 | Lamb's Conduit Street | 10 | |||
WC1N 3LX | 10 | 0 | ||||
WC1N 3LZ | 10 | Lamb's Conduit Street | 2 | |||
WC1N 3NA | 10 | Lamb's Conduit Street | 2 | |||
WC1N 3NB | 10 | Lamb's Conduit Street | 10 | |||
WC1N 3NF | 10 | 0 | ||||
WC1N 3NG | 10 | Lamb's Conduit Street | 11 | |||
WC1N 3NH | 10 | 0 | ||||
WC1N 3NL | 10 | 2 | 0 | |||
WC1N 3NN | 10 | 3 | 0 | |||
WC1N 3NR | 10 | Lambs Conduit Street | 1 | |||
WC1N 3NW | 10 | 3 | 0 | |||
WC1N 3PA | 10 | Harpur Street | 2 | |||
WC1N 3PB | 10 | Dombey Street | 7 | |||
WC1N 3PD | 10 | Dombey Street | 5 | |||
WC1N 3PE | 10 | 0 | ||||
WC1N 3PF | 10 | 0 | ||||
WC1N 3PG | 10 | 0 | ||||
WC1N 3PH | 10 | 0 | ||||
WC1N 3PJ | 10 | New North Street | 1 | |||
WC1N 3PP | 10 | 2019‑01 | 790 | 0 | ||
WC1N 3PR | 10 | 0 | ||||
WC1N 3PS | 10 | 0 | ||||
WC1N 3PX | 10 | 2 | 0 | |||
WC1N 3PZ | 10 | 0 | ||||
WC1N 3QA | 10 | Emerald Street | 8 | |||
WC1N 3QH | 10 | Emerald Street | 1 | |||
WC1N 3QL | 10 | Emerald Street | 1 | |||
WC1N 3QN | 10 | Emerald Street | 1 | |||
WC1N 3QS | 10 | Emerald Street | 1 | |||
WC1N 3QT | 10 | Rugby Street | 8 | |||
WC1N 3QU | 10 | Rugby Street | 1 | |||
WC1N 3QW | 10 | 0 | ||||
WC1N 3QZ | 10 | Rugby Street | 9 | |||
WC1N 3RA | 10 | Great Ormond Street | 9 | |||
WC1N 3RB | 10 | Great Ormond Street | 8 | |||
WC1N 3RD | 10 | Great Ormond Street | 1 | |||
WC1N 3RX | 10 | 2 | 0 | |||
WC1N 3WA | 10 | 790 | 0 | |||
WC1N 3WH | 10 | 2017‑10 | 790 | 0 | ||
WC1N 3WT | 10 | 2019‑01 | 790 | 0 | ||
WC1N 3WY | 10 | 2019‑01 | 790 | 0 | ||
WC1N 3XX | 10 | 790 | 0 |
Units with street mismatches in this sector:
Unit | Mapped | Dominant Street | OSM Object | Tagged Street |
---|---|---|---|---|
WC1N 3AF | 5 | Southampton␣Row | n11619853861 | Old␣Gloucester␣Street |
WC1N 3AR | 6 | Queen␣Square | n29039088 | |
WC1N 3BG | 3 | Queen␣Square | w125297850 | |
WC1N 3BH | 2 | Queen␣Square | w548547984 | |
WC1N 3JH | 2 | Great␣Ormond␣Street | n9702462629 | Great␣Ormond␣Street␣Hospital␣for␣Children |
WC1N 3LE | 5 | Lamb's␣Conduit␣Street | w301105216 | Lambs␣Conduit␣Street |
WC1N 3LZ | 2 | Lamb's␣Conduit␣Street | w112564610 | Lambs␣Conduit␣Street |