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 | % |
---|---|---|---|---|---|
SL3 | 6 | 141 | 138 | 3 | 2.2% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
SL3 6AA | 10 | 0 | ||||
SL3 6AB | 10 | 0 | ||||
SL3 6AD | 10 | 0 | ||||
SL3 6AE | 10 | 0 | ||||
SL3 6AG | 10 | 0 | ||||
SL3 6AN | 10 | 0 | ||||
SL3 6AP | 10 | 0 | ||||
SL3 6AR | 10 | 0 | ||||
SL3 6AS | 10 | 0 | ||||
SL3 6AT | 10 | 0 | ||||
SL3 6AU | 10 | 0 | ||||
SL3 6AW | 10 | 0 | ||||
SL3 6AX | 10 | 0 | ||||
SL3 6AY | 10 | 0 | ||||
SL3 6BB | 10 | 0 | ||||
SL3 6BD | 10 | 0 | ||||
SL3 6BE | 10 | 0 | ||||
SL3 6BG | 10 | 0 | ||||
SL3 6BH | 10 | 0 | ||||
SL3 6BJ | 10 | 0 | ||||
SL3 6BL | 10 | 0 | ||||
SL3 6BN | 10 | 0 | ||||
SL3 6BP | 10 | 0 | ||||
SL3 6BQ | 10 | 0 | ||||
SL3 6BS | 10 | 0 | ||||
SL3 6BU | 10 | 0 | ||||
SL3 6BY | 10 | 0 | ||||
SL3 6BZ | 10 | 0 | ||||
SL3 6DA | 10 | 0 | ||||
SL3 6DB | 10 | 0 | ||||
SL3 6DD | 10 | 0 | ||||
SL3 6DE | 10 | 0 | ||||
SL3 6DG | 10 | 0 | ||||
SL3 6DH | 10 | 0 | ||||
SL3 6DL | 10 | 0 | ||||
SL3 6DN | 10 | 0 | ||||
SL3 6DQ | 10 | 0 | ||||
SL3 6DR | 10 | 0 | ||||
SL3 6DS | 10 | Black Park Road | 1 | |||
SL3 6DT | 10 | 0 | ||||
SL3 6DU | 10 | 0 | ||||
SL3 6DW | 10 | 0 | ||||
SL3 6EA | 10 | 0 | ||||
SL3 6ED | 10 | 0 | ||||
SL3 6EG | 10 | 0 | ||||
SL3 6EH | 10 | 2015‑10 | 0 | |||
SL3 6EP | 10 | 0 | ||||
SL3 6EY | 10 | 0 | ||||
SL3 6EZ | 10 | 0 | ||||
SL3 6HA | 10 | 0 | ||||
SL3 6HB | 10 | 0 | ||||
SL3 6HD | 10 | 0 | ||||
SL3 6HF | 10 | 0 | ||||
SL3 6HG | 10 | 0 | ||||
SL3 6HJ | 10 | 0 | ||||
SL3 6HL | 10 | 0 | ||||
SL3 6HN | 10 | 0 | ||||
SL3 6HP | 10 | 0 | ||||
SL3 6HR | 10 | 0 | ||||
SL3 6HS | 10 | 0 | ||||
SL3 6HT | 10 | 0 | ||||
SL3 6HU | 10 | 0 | ||||
SL3 6HW | 10 | 0 | ||||
SL3 6HX | 10 | 0 | ||||
SL3 6JA | 10 | 0 | ||||
SL3 6JB | 10 | Alderbourne Lane | 1 | |||
SL3 6JD | 10 | 0 | ||||
SL3 6JE | 10 | 0 | ||||
SL3 6JF | 10 | 0 | ||||
SL3 6JG | 10 | 0 | ||||
SL3 6JH | 10 | 0 | ||||
SL3 6JJ | 10 | 0 | ||||
SL3 6JL | 10 | 0 | ||||
SL3 6JN | 10 | 0 | ||||
SL3 6JQ | 10 | 0 | ||||
SL3 6JT | 10 | 156 | 0 | |||
SL3 6JW | 10 | 0 | ||||
SL3 6LA | 10 | 0 | ||||
SL3 6LB | 10 | 0 | ||||
SL3 6LE | 10 | 0 | ||||
SL3 6LF | 10 | 0 | ||||
SL3 6LG | 10 | 0 | ||||
SL3 6LH | 10 | 0 | ||||
SL3 6LJ | 10 | 0 | ||||
SL3 6LL | 10 | 0 | ||||
SL3 6LN | 10 | 0 | ||||
SL3 6LP | 10 | 0 | ||||
SL3 6LQ | 10 | 0 | ||||
SL3 6LS | 10 | 0 | ||||
SL3 6LT | 10 | 0 | ||||
SL3 6LU | 10 | 0 | ||||
SL3 6LW | 10 | 0 | ||||
SL3 6LX | 10 | 0 | ||||
SL3 6LY | 10 | 0 | ||||
SL3 6LZ | 10 | 0 | ||||
SL3 6NA | 10 | 0 | ||||
SL3 6NB | 10 | 0 | ||||
SL3 6ND | 10 | 0 | ||||
SL3 6NG | 10 | 0 | ||||
SL3 6NH | 10 | Wexham Street | 1 | |||
SL3 6NJ | 10 | 0 | ||||
SL3 6NL | 10 | 0 | ||||
SL3 6NN | 10 | 0 | ||||
SL3 6NP | 10 | 0 | ||||
SL3 6NQ | 10 | 0 | ||||
SL3 6NR | 10 | 0 | ||||
SL3 6NS | 10 | 0 | ||||
SL3 6NT | 10 | 0 | ||||
SL3 6NU | 10 | 0 | ||||
SL3 6NW | 10 | 0 | ||||
SL3 6NX | 10 | 0 | ||||
SL3 6NY | 10 | 0 | ||||
SL3 6NZ | 10 | 0 | ||||
SL3 6PA | 10 | 0 | ||||
SL3 6PB | 10 | 0 | ||||
SL3 6PD | 10 | 0 | ||||
SL3 6PG | 10 | 0 | ||||
SL3 6PJ | 10 | 0 | ||||
SL3 6QA | 10 | 0 | ||||
SL3 6QB | 10 | 0 | ||||
SL3 6QD | 10 | 0 | ||||
SL3 6QE | 10 | 0 | ||||
SL3 6QF | 10 | 0 | ||||
SL3 6QG | 10 | 0 | ||||
SL3 6QH | 10 | 0 | ||||
SL3 6QJ | 10 | 0 | ||||
SL3 6QQ | 10 | 0 | ||||
SL3 6RA | 10 | 0 | ||||
SL3 6RB | 10 | 0 | ||||
SL3 6RD | 10 | 0 | ||||
SL3 6RE | 10 | 0 | ||||
SL3 6RF | 10 | 0 | ||||
SL3 6RG | 10 | 0 | ||||
SL3 6RH | 10 | 0 | ||||
SL3 6RJ | 10 | 0 | ||||
SL3 6RL | 10 | 0 | ||||
SL3 6RN | 10 | 0 | ||||
SL3 6RP | 10 | 0 | ||||
SL3 6RQ | 10 | 0 | ||||
SL3 6RR | 10 | 156 | 0 | |||
SL3 6RS | 10 | 2015‑10 | 156 | 0 | ||
SL3 6RW | 10 | 0 | ||||
SL3 6SA | 10 | 0 | ||||
SL3 6SB | 10 | 0 | ||||
SL3 6WY | 10 | 156 | 0 | |||
SL3 6WZ | 10 | 2019‑04 | 156 | 0 | ||
SL3 6YU | 10 | 156 | 0 | |||
SL3 6ZW | 10 | 156 | 0 |
Units with street mismatches in this sector:
No mismatches found in this sector.