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 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 | % |
---|---|---|---|---|---|
TW18 | 4 | 188 | 183 | 32 | 17.5% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
TW18 4AB | 10 | 0 | ||||
TW18 4AD | 10 | 0 | ||||
TW18 4AF | 10 | 0 | ||||
TW18 4AH | 10 | High Street | 1 | |||
TW18 4AX | 10 | London Road | 1 | |||
TW18 4BB | 10 | 0 | ||||
TW18 4BD | 10 | 0 | ||||
TW18 4BF | 10 | 0 | ||||
TW18 4BJ | 10 | Tillys Lane | 2 | |||
TW18 4BL | 10 | Mustard Mill Road | 7 | |||
TW18 4BN | 10 | 0 | ||||
TW18 4BP | 10 | 0 | ||||
TW18 4BQ | 10 | 2013‑07 | 0 | |||
TW18 4BU | 10 | Clarence Street | 1 | |||
TW18 4BW | 10 | 0 | ||||
TW18 4BY | 10 | High Street | 1 | |||
TW18 4DA | 10 | 0 | ||||
TW18 4DE | 10 | 0 | ||||
TW18 4DF | 10 | 0 | ||||
TW18 4DJ | 10 | 2013‑07 | 28 | 0 | ||
TW18 4DN | 10 | 0 | ||||
TW18 4DP | 10 | 0 | ||||
TW18 4DQ | 10 | 0 | ||||
TW18 4DR | 10 | 0 | ||||
TW18 4DY | 10 | High Street | 4 | |||
TW18 4EA | 10 | 0 | ||||
TW18 4EE | 10 | High Street | 5 | |||
TW18 4EJ | 10 | 0 | ||||
TW18 4EL | 10 | 0 | ||||
TW18 4EN | 10 | Church Street | 1 | |||
TW18 4EP | 10 | Church Street | 2 | |||
TW18 4EQ | 10 | 0 | ||||
TW18 4EW | 10 | 0 | ||||
TW18 4EX | 10 | London Road | 1 | |||
TW18 4EY | 10 | High Street | 1 | |||
TW18 4EZ | 10 | 0 | ||||
TW18 4FS | 10 | 28 | 0 | |||
TW18 4GB | 10 | 2013‑07 | 28 | 0 | ||
TW18 4GP | 10 | 2018‑07 | 20 | 0 | ||
TW18 4GR | 10 | 2013‑07 | 28 | 0 | ||
TW18 4HA | 10 | 0 | ||||
TW18 4HB | 10 | 0 | ||||
TW18 4HD | 10 | 0 | ||||
TW18 4HF | 10 | 0 | ||||
TW18 4HL | 10 | 0 | ||||
TW18 4HN | 10 | London Road | 1 | |||
TW18 4HP | 10 | 0 | ||||
TW18 4HR | 10 | 0 | ||||
TW18 4HS | 10 | 0 | ||||
TW18 4HT | 10 | 0 | ||||
TW18 4HU | 10 | 0 | ||||
TW18 4HW | 10 | 0 | ||||
TW18 4HX | 10 | 0 | ||||
TW18 4HY | 10 | 0 | ||||
TW18 4HZ | 10 | 0 | ||||
TW18 4JB | 10 | 0 | ||||
TW18 4JD | 10 | 2021‑09 | 0 | |||
TW18 4JG | 10 | Kingston Road | 1 | |||
TW18 4JH | 10 | 0 | ||||
TW18 4JJ | 10 | 0 | ||||
TW18 4JL | 10 | 0 | ||||
TW18 4JN | 10 | 0 | ||||
TW18 4JQ | 10 | 0 | ||||
TW18 4JR | 10 | 28 | 0 | |||
TW18 4JT | 10 | 2022‑07 | 0 | |||
TW18 4JU | 10 | 0 | ||||
TW18 4JW | 10 | 0 | ||||
TW18 4JX | 10 | 0 | ||||
TW18 4JY | 10 | 0 | ||||
TW18 4JZ | 10 | 0 | ||||
TW18 4LA | 10 | 0 | ||||
TW18 4LB | 10 | 0 | ||||
TW18 4LD | 10 | 0 | ||||
TW18 4LG | 10 | 0 | ||||
TW18 4LH | 10 | 0 | ||||
TW18 4LN | 10 | 2019‑07 | 0 | |||
TW18 4LP | 10 | 0 | ||||
TW18 4LQ | 10 | 0 | ||||
TW18 4LR | 10 | 0 | ||||
TW18 4LS | 10 | 0 | ||||
TW18 4LT | 10 | 0 | ||||
TW18 4LU | 10 | 0 | ||||
TW18 4LW | 10 | 0 | ||||
TW18 4LX | 10 | 0 | ||||
TW18 4LY | 10 | Station Approach | 2 | |||
TW18 4LZ | 10 | 0 | ||||
TW18 4NA | 10 | 0 | ||||
TW18 4NB | 10 | 0 | ||||
TW18 4ND | 10 | 0 | ||||
TW18 4NE | 10 | 0 | ||||
TW18 4NF | 10 | 0 | ||||
TW18 4NG | 10 | 0 | ||||
TW18 4NH | 10 | 0 | ||||
TW18 4NJ | 10 | 0 | ||||
TW18 4NL | 10 | 0 | ||||
TW18 4NN | 10 | 2013‑07 | 0 | |||
TW18 4NP | 10 | 0 | ||||
TW18 4NQ | 10 | 0 | ||||
TW18 4NR | 10 | 0 | ||||
TW18 4NS | 10 | 0 | ||||
TW18 4NT | 10 | 0 | ||||
TW18 4NU | 10 | 0 | ||||
TW18 4NW | 10 | 0 | ||||
TW18 4NX | 10 | Leacroft | 1 | |||
TW18 4NZ | 10 | 0 | ||||
TW18 4PA | 10 | High Street | 2 | |||
TW18 4PB | 10 | 0 | ||||
TW18 4PD | 10 | High Street | 2 | |||
TW18 4PG | 10 | 0 | ||||
TW18 4PH | 10 | 2020‑12 | 0 | |||
TW18 4PJ | 10 | High Street | 0 | |||
TW18 4PN | 10 | 2017‑01 | 0 | |||
TW18 4PP | 10 | 0 | ||||
TW18 4PQ | 10 | High Street | 1 | |||
TW18 4PR | 10 | 2 | 0 | |||
TW18 4PS | 10 | 28 | 0 | |||
TW18 4PT | 10 | 0 | ||||
TW18 4PU | 10 | 0 | ||||
TW18 4PW | 10 | 0 | ||||
TW18 4QA | 10 | 0 | ||||
TW18 4QB | 10 | 4 | ||||
TW18 4QD | 10 | 0 | ||||
TW18 4QE | 10 | 2 | 0 | |||
TW18 4QH | 10 | High Street | 2 | |||
TW18 4QJ | 10 | 0 | ||||
TW18 4QL | 10 | 0 | ||||
TW18 4QN | 10 | 0 | ||||
TW18 4QP | 10 | 2021‑09 | 0 | |||
TW18 4QR | 10 | High Street | 1 | |||
TW18 4QS | 10 | 2013‑07 | 28 | 0 | ||
TW18 4QU | 10 | 0 | ||||
TW18 4QW | 10 | 0 | ||||
TW18 4QX | 10 | Kingston Road | 1 | |||
TW18 4QY | 10 | 0 | ||||
TW18 4QZ | 10 | 2021‑09 | 0 | |||
TW18 4RB | 10 | 2021‑12 | 2021‑12 | 0 | ||
TW18 4RH | 10 | 0 | ||||
TW18 4RJ | 10 | 0 | ||||
TW18 4RL | 10 | 0 | ||||
TW18 4RN | 10 | 0 | ||||
TW18 4RP | 10 | 0 | ||||
TW18 4RR | 10 | 0 | ||||
TW18 4RS | 10 | 0 | ||||
TW18 4RT | 10 | 0 | ||||
TW18 4RU | 10 | 0 | ||||
TW18 4RW | 10 | 0 | ||||
TW18 4RX | 10 | 0 | ||||
TW18 4RY | 10 | 0 | ||||
TW18 4RZ | 10 | 0 | ||||
TW18 4SD | 10 | Thames Street | 1 | |||
TW18 4SG | 10 | 0 | ||||
TW18 4SH | 10 | 0 | ||||
TW18 4SJ | 10 | Thames Street | 1 | |||
TW18 4SN | 10 | 0 | ||||
TW18 4SP | 10 | 0 | ||||
TW18 4SU | 10 | Clarence Street | 1 | |||
TW18 4SW | 10 | 0 | ||||
TW18 4SY | 10 | 0 | ||||
TW18 4TA | 10 | 0 | ||||
TW18 4TB | 10 | 0 | ||||
TW18 4TD | 10 | 0 | ||||
TW18 4TG | 10 | Bridge Street | 1 | |||
TW18 4TL | 10 | 2013‑07 | 0 | |||
TW18 4TP | 10 | 0 | ||||
TW18 4TS | 10 | 0 | ||||
TW18 4TT | 10 | 0 | ||||
TW18 4TU | 10 | 0 | ||||
TW18 4TW | 10 | 0 | ||||
TW18 4TX | 10 | 0 | ||||
TW18 4TY | 10 | 0 | ||||
TW18 4TZ | 10 | 0 | ||||
TW18 4UA | 10 | 0 | ||||
TW18 4UD | 10 | 2019‑12 | 0 | |||
TW18 4UP | 10 | Norris Road | 3 | |||
TW18 4UQ | 10 | 0 | ||||
TW18 4US | 10 | 0 | ||||
TW18 4UW | 10 | Hale Street | 1 | |||
TW18 4WA | 10 | 0 | ||||
TW18 4WB | 10 | Mustard Mill Road | 5 | |||
TW18 4WS | 10 | 2020‑12 | 20 | 0 | ||
TW18 4XE | 10 | 0 | ||||
TW18 4XF | 10 | 28 | 0 | |||
TW18 4XH | 10 | 0 | ||||
TW18 4XJ | 10 | 28 | 0 | |||
TW18 4XL | 10 | 0 | ||||
TW18 4XN | 10 | 28 | 0 | |||
TW18 4XP | 10 | 0 | ||||
TW18 4XR | 10 | 0 | ||||
TW18 4XS | 10 | 0 | ||||
TW18 4XT | 10 | 0 | ||||
TW18 4XX | 10 | Vicarage Road | 1 | |||
TW18 4XY | 10 | 0 | ||||
TW18 4XZ | 10 | Wraysbury Road | 2 | |||
TW18 4YA | 10 | 0 | ||||
TW18 4YD | 10 | 0 | ||||
TW18 4YE | 10 | 0 | ||||
TW18 4YF | 10 | 0 | ||||
TW18 4YG | 10 | 0 | ||||
TW18 4YH | 10 | 0 | ||||
TW18 4YJ | 10 | 0 | ||||
TW18 4YN | 10 | 0 | ||||
TW18 4YP | 10 | 0 | ||||
TW18 4YR | 10 | 0 | ||||
TW18 4YT | 10 | 0 | ||||
TW18 4YU | 10 | 0 | ||||
TW18 4YW | 10 | 0 | ||||
TW18 4YX | 10 | 0 | ||||
TW18 4YY | 10 | 0 | ||||
TW18 4YZ | 10 | 0 | ||||
TW18 4ZB | 10 | 0 | ||||
TW18 4ZH | 10 | 2013‑07 | 28 | 0 | ||
TW18 4ZX | 10 | 0 |
Units with street mismatches in this sector:
Unit | Mapped | Dominant Street | OSM Object | Tagged Street |
---|---|---|---|---|
TW18 4QB | 4 | w345732578 | ||
TW18 4QB | 4 | w345731286 | ||
TW18 4QB | 4 | w345732574 | ||
TW18 4QB | 4 | w345732577 |