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 | % |
---|---|---|---|---|---|
SA1 | 2 | 164 | 156 | 14 | 9.0% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
SA1 2AA | 10 | Parc Tawe Link Road | 4 | |||
SA1 2AB | 10 | 0 | ||||
SA1 2AE | 10 | The Strand | 1 | |||
SA1 2AF | 10 | 0 | ||||
SA1 2AG | 10 | The Strand | 1 | |||
SA1 2AH | 10 | 0 | ||||
SA1 2AL | 10 | Parc Tawe | 2 | |||
SA1 2AN | 10 | 0 | ||||
SA1 2AP | 10 | 0 | ||||
SA1 2AQ | 10 | 0 | ||||
SA1 2AS | 10 | 0 | ||||
SA1 2AW | 10 | The Strand | 1 | |||
SA1 2AX | 10 | 0 | ||||
SA1 2AY | 10 | 0 | ||||
SA1 2BA | 10 | 0 | ||||
SA1 2BD | 10 | 0 | ||||
SA1 2BE | 10 | 0 | ||||
SA1 2BG | 10 | 0 | ||||
SA1 2BH | 10 | 0 | ||||
SA1 2BJ | 10 | 0 | ||||
SA1 2BL | 10 | 0 | ||||
SA1 2BN | 10 | 0 | ||||
SA1 2BP | 10 | 0 | ||||
SA1 2BQ | 10 | 0 | ||||
SA1 2BR | 10 | 0 | ||||
SA1 2BS | 10 | 0 | ||||
SA1 2BT | 10 | 0 | ||||
SA1 2BU | 10 | 0 | ||||
SA1 2BW | 10 | 0 | ||||
SA1 2BX | 10 | 0 | ||||
SA1 2BY | 10 | 0 | ||||
SA1 2BZ | 10 | Lion Street | 1 | |||
SA1 2DA | 10 | 0 | ||||
SA1 2DB | 10 | 0 | ||||
SA1 2DD | 10 | 0 | ||||
SA1 2DE | 10 | 0 | ||||
SA1 2DF | 10 | 0 | ||||
SA1 2DG | 10 | 0 | ||||
SA1 2DH | 10 | 0 | ||||
SA1 2DJ | 10 | 0 | ||||
SA1 2DL | 10 | 0 | ||||
SA1 2DN | 10 | New Cut Road | 1 | |||
SA1 2DP | 10 | 0 | ||||
SA1 2DQ | 10 | 0 | ||||
SA1 2DR | 10 | 0 | ||||
SA1 2DS | 10 | 0 | ||||
SA1 2DT | 10 | 0 | ||||
SA1 2DU | 10 | 0 | ||||
SA1 2DW | 10 | 0 | ||||
SA1 2DX | 10 | 0 | ||||
SA1 2DY | 10 | 0 | ||||
SA1 2DZ | 10 | 0 | ||||
SA1 2EA | 10 | 0 | ||||
SA1 2EB | 10 | 0 | ||||
SA1 2ED | 10 | 0 | ||||
SA1 2EF | 10 | 0 | ||||
SA1 2EJ | 10 | 0 | ||||
SA1 2EN | 10 | 0 | ||||
SA1 2EP | 10 | 2015‑10 | 0 | |||
SA1 2EQ | 10 | 0 | ||||
SA1 2ES | 10 | 0 | ||||
SA1 2ET | 10 | 0 | ||||
SA1 2EU | 10 | 0 | ||||
SA1 2EW | 10 | 0 | ||||
SA1 2EX | 10 | 0 | ||||
SA1 2EY | 10 | Prince Of Wales Road | 1 | |||
SA1 2EZ | 10 | 0 | ||||
SA1 2FA | 10 | Plasmarl | 2 | |||
SA1 2FB | 10 | 0 | ||||
SA1 2FD | 10 | 0 | ||||
SA1 2GA | 10 | 0 | ||||
SA1 2GB | 10 | 0 | ||||
SA1 2GD | 10 | 0 | ||||
SA1 2GE | 10 | 0 | ||||
SA1 2HA | 10 | 0 | ||||
SA1 2HB | 10 | 0 | ||||
SA1 2HD | 10 | 0 | ||||
SA1 2HE | 10 | 0 | ||||
SA1 2HF | 10 | 0 | ||||
SA1 2HG | 10 | 0 | ||||
SA1 2HH | 10 | 0 | ||||
SA1 2HJ | 10 | 0 | ||||
SA1 2HL | 10 | Neath Road | 1 | |||
SA1 2HN | 10 | 0 | ||||
SA1 2HP | 10 | 0 | ||||
SA1 2HQ | 10 | 0 | ||||
SA1 2HR | 10 | 0 | ||||
SA1 2HW | 10 | 0 | ||||
SA1 2HY | 10 | 0 | ||||
SA1 2JA | 10 | 0 | ||||
SA1 2JE | 10 | 0 | ||||
SA1 2JG | 10 | Neath Road | 1 | |||
SA1 2JN | 10 | 18 | 0 | |||
SA1 2JQ | 10 | 0 | ||||
SA1 2JT | 10 | 0 | ||||
SA1 2JW | 10 | 0 | ||||
SA1 2JY | 10 | 0 | ||||
SA1 2JZ | 10 | 0 | ||||
SA1 2LE | 10 | Neath Road | 1 | |||
SA1 2LF | 10 | 0 | ||||
SA1 2LG | 10 | 0 | ||||
SA1 2LH | 10 | 0 | ||||
SA1 2LJ | 10 | 0 | ||||
SA1 2LL | 10 | 0 | ||||
SA1 2LN | 10 | 0 | ||||
SA1 2LP | 10 | 0 | ||||
SA1 2LR | 10 | 0 | ||||
SA1 2LS | 10 | 0 | ||||
SA1 2LT | 10 | 1 | ||||
SA1 2LU | 10 | 0 | ||||
SA1 2LW | 10 | 0 | ||||
SA1 2LX | 10 | 0 | ||||
SA1 2LY | 10 | 0 | ||||
SA1 2LZ | 10 | 0 | ||||
SA1 2NA | 10 | 0 | ||||
SA1 2NB | 10 | 0 | ||||
SA1 2ND | 10 | 0 | ||||
SA1 2NE | 10 | 0 | ||||
SA1 2NF | 10 | 0 | ||||
SA1 2NG | 10 | 0 | ||||
SA1 2NH | 10 | 0 | ||||
SA1 2NJ | 10 | 0 | ||||
SA1 2NN | 10 | 1 | ||||
SA1 2NQ | 10 | 0 | ||||
SA1 2NR | 10 | 0 | ||||
SA1 2NS | 10 | 2019‑04 | 0 | |||
SA1 2NT | 10 | 0 | ||||
SA1 2NU | 10 | 0 | ||||
SA1 2NX | 10 | 0 | ||||
SA1 2NY | 10 | 0 | ||||
SA1 2NZ | 10 | 0 | ||||
SA1 2PA | 10 | 0 | ||||
SA1 2PB | 10 | 0 | ||||
SA1 2PD | 10 | 0 | ||||
SA1 2PE | 10 | 0 | ||||
SA1 2PF | 10 | 0 | ||||
SA1 2PG | 10 | 0 | ||||
SA1 2PH | 10 | 0 | ||||
SA1 2PJ | 10 | 0 | ||||
SA1 2PL | 10 | 0 | ||||
SA1 2PN | 10 | 0 | ||||
SA1 2PP | 10 | 0 | ||||
SA1 2PQ | 10 | 0 | ||||
SA1 2PR | 10 | 0 | ||||
SA1 2PS | 10 | 0 | ||||
SA1 2PT | 10 | 0 | ||||
SA1 2PU | 10 | 0 | ||||
SA1 2PW | 10 | 0 | ||||
SA1 2PX | 10 | 0 | ||||
SA1 2PY | 10 | 0 | ||||
SA1 2PZ | 10 | 0 | ||||
SA1 2QA | 10 | 0 | ||||
SA1 2QB | 10 | 0 | ||||
SA1 2QD | 10 | 0 | ||||
SA1 2QE | 10 | 0 | ||||
SA1 2QF | 10 | 0 | ||||
SA1 2QG | 10 | 0 | ||||
SA1 2QH | 10 | 0 | ||||
SA1 2QJ | 10 | 0 | ||||
SA1 2QQ | 10 | 0 | ||||
SA1 2TA | 10 | 18 | 0 | |||
SA1 2TB | 10 | 2017‑04 | 18 | 0 | ||
SA1 2TE | 10 | 18 | 0 | |||
SA1 2TG | 10 | 18 | 0 | |||
SA1 2TJ | 10 | 18 | 0 | |||
SA1 2TP | 10 | 18 | 0 | |||
SA1 2YG | 10 | 68 | 0 | |||
SA1 2YS | 10 | 68 | 0 | |||
SA1 2YT | 10 | 2019‑01 | 68 | 0 |
Units with street mismatches in this sector:
Unit | Mapped | Dominant Street | OSM Object | Tagged Street |
---|---|---|---|---|
SA1 2FA | 2 | Plasmarl | w23211181 | |
SA1 2LT | 1 | r1664932 | ||
SA1 2NN | 1 | r1664933 |