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 | % |
---|---|---|---|---|---|
W1H | 4 | 106 | 96 | 5 | 5.2% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
W1H 4AA | 10 | 2016‑10 | 0 | |||
W1H 4AD | 10 | 0 | ||||
W1H 4AG | 10 | 0 | ||||
W1H 4AL | 10 | 0 | ||||
W1H 4AN | 10 | 0 | ||||
W1H 4AP | 10 | 0 | ||||
W1H 4AT | 10 | 0 | ||||
W1H 4AW | 10 | 0 | ||||
W1H 4BS | 10 | 0 | ||||
W1H 4DJ | 10 | 0 | ||||
W1H 4DL | 10 | 0 | ||||
W1H 4DR | 10 | 0 | ||||
W1H 4EG | 10 | 2 | 0 | |||
W1H 4EU | 10 | 2 | 0 | |||
W1H 4EX | 10 | 0 | ||||
W1H 4EY | 10 | 0 | ||||
W1H 4EZ | 10 | 0 | ||||
W1H 4HA | 10 | 0 | ||||
W1H 4HB | 10 | Harcourt Street | 1 | |||
W1H 4HD | 10 | 0 | ||||
W1H 4HE | 10 | Harcourt Street | 1 | |||
W1H 4HF | 10 | 2 | 0 | |||
W1H 4HG | 10 | 0 | ||||
W1H 4HH | 10 | 0 | ||||
W1H 4HJ | 10 | 0 | ||||
W1H 4HL | 10 | 0 | ||||
W1H 4HN | 10 | 0 | ||||
W1H 4HP | 10 | 2 | 0 | |||
W1H 4HQ | 10 | 0 | ||||
W1H 4HR | 10 | 2 | 0 | |||
W1H 4HS | 10 | 0 | ||||
W1H 4HU | 10 | 0 | ||||
W1H 4HW | 10 | 0 | ||||
W1H 4HX | 10 | Harcourt Street | 1 | |||
W1H 4JA | 10 | 0 | ||||
W1H 4JB | 10 | 3 | 0 | |||
W1H 4JD | 10 | 3 | 0 | |||
W1H 4JE | 10 | 3 | 0 | |||
W1H 4JF | 10 | 3 | 0 | |||
W1H 4JG | 10 | 3 | 0 | |||
W1H 4JH | 10 | 3 | 0 | |||
W1H 4JJ | 10 | 3 | 0 | |||
W1H 4JL | 10 | 3 | 0 | |||
W1H 4JN | 10 | 0 | ||||
W1H 4JP | 10 | 4 | 0 | |||
W1H 4JQ | 10 | 3 | 0 | |||
W1H 4JR | 10 | 4 | 0 | |||
W1H 4JS | 10 | 4 | 0 | |||
W1H 4JU | 10 | 0 | ||||
W1H 4JW | 10 | 4 | 0 | |||
W1H 4LA | 10 | 2 | 0 | |||
W1H 4LB | 10 | 2 | 0 | |||
W1H 4LD | 10 | 0 | ||||
W1H 4LE | 10 | 0 | ||||
W1H 4LG | 10 | 0 | ||||
W1H 4LH | 10 | 0 | ||||
W1H 4LJ | 10 | 0 | ||||
W1H 4LL | 10 | 0 | ||||
W1H 4LN | 10 | 0 | ||||
W1H 4LP | 10 | 0 | ||||
W1H 4LQ | 10 | 0 | ||||
W1H 4LW | 10 | 0 | ||||
W1H 4NA | 10 | Homer Street | 0 | |||
W1H 4NB | 10 | 0 | ||||
W1H 4ND | 10 | 0 | ||||
W1H 4NE | 10 | 0 | ||||
W1H 4NF | 10 | 0 | ||||
W1H 4NG | 10 | 0 | ||||
W1H 4NH | 10 | 0 | ||||
W1H 4NJ | 10 | 0 | ||||
W1H 4NL | 10 | 0 | ||||
W1H 4NN | 10 | 0 | ||||
W1H 4NP | 10 | 0 | ||||
W1H 4NQ | 10 | 0 | ||||
W1H 4NR | 10 | 0 | ||||
W1H 4NS | 10 | 0 | ||||
W1H 4NT | 10 | 0 | ||||
W1H 4NU | 10 | 0 | ||||
W1H 4NW | 10 | Homer Street | 1 | |||
W1H 4NX | 10 | 0 | ||||
W1H 4NY | 10 | 2 | 0 | |||
W1H 4NZ | 10 | 2 | 0 | |||
W1H 4PA | 10 | 11 | 0 | |||
W1H 4PB | 10 | 11 | 0 | |||
W1H 4PD | 10 | 11 | 0 | |||
W1H 4PE | 10 | 11 | 0 | |||
W1H 4PF | 10 | 11 | 0 | |||
W1H 4PG | 10 | 11 | 0 | |||
W1H 4PH | 10 | 11 | 0 | |||
W1H 4PJ | 10 | 0 | ||||
W1H 4PL | 10 | 0 | ||||
W1H 4PP | 10 | 11 | 0 | |||
W1H 4PQ | 10 | Seymour Place | 11 | 1 | ||
W1H 4PR | 10 | 11 | 0 | |||
W1H 4PS | 10 | 11 | 0 | |||
W1H 4PT | 10 | 0 | ||||
W1H 4PU | 10 | 0 | ||||
W1H 4PW | 10 | 0 | ||||
W1H 4QA | 10 | 0 | ||||
W1H 4QB | 10 | 0 | ||||
W1H 4QD | 10 | 0 | ||||
W1H 4QE | 10 | 0 | ||||
W1H 4QF | 10 | 0 | ||||
W1H 4QG | 10 | 0 | ||||
W1H 4QH | 10 | 0 | ||||
W1H 4QJ | 10 | 0 | ||||
W1H 4QL | 10 | 0 | ||||
W1H 4QN | 10 | 2 | 0 | |||
W1H 4QQ | 10 | 0 |
Units with street mismatches in this sector:
No mismatches found in this sector.