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OSM Postcode Mapping for SA1 3 Postal Sector

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 3 142 141 60 42.6%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SA1 3AA 10 Whitewalls 11
SA1 3AB 10 0
SA1 3AD 10 The Quadrant Shopping Centre 1
SA1 3AE 10 Oxford Street 6
SA1 3AF 10 Oxford Street 9
SA1 3AG 10 Oxford Street 1
SA1 3AL 10 2019‑01 76 0
SA1 3AN 10 0
SA1 3AQ 10 Oxford Street 1
SA1 3AR 10 Plymouth Street 3
SA1 3AT 10 0
SA1 3AU 10 0
SA1 3AY 10 0
SA1 3AZ 10 0
SA1 3BB 10 Oxford Street 1
SA1 3BD 10 0
SA1 3BE 10 0
SA1 3BG 10 Oxford Street 1
SA1 3BH 10 0
SA1 3BJ 10 Oxford Street 1
SA1 3BL 10 Oxford Street 1
SA1 3BN 10 Oxford Street 1
SA1 3BP 10 Oxford Street 2
SA1 3BQ 10 0
SA1 3BR 10 Oxford Street 3
SA1 3BS 10 Oxford Street 3
SA1 3DF 10 Portland Street 1
SA1 3DH 10 Portland Street 8
SA1 3DJ 10 Park Street 4
SA1 3DN 10 Union Street 1
SA1 3DW 10 Union Street 5
SA1 3DZ 10 Union Street 6
SA1 3EE 10 Union Street 7
SA1 3EF 10 Union Street 5
SA1 3EH 10 Union Street 6
SA1 3EN 10 Craddock Street 2
SA1 3EP 10 0
SA1 3EQ 10 Union Street 1
SA1 3ES 10 0
SA1 3ET 10 0
SA1 3EU 10 0
SA1 3EW 10 0
SA1 3EY 10 0
SA1 3EZ 10 0
SA1 3HA 10 De La Beche Street 1
SA1 3HE 10 0
SA1 3HH 10 2 0
SA1 3HJ 10 2 0
SA1 3HT 10 0
SA1 3HY 10 0
SA1 3HZ 10 0
SA1 3JA 10 Oxford Street 1
SA1 3JB 10 2015‑10 0
SA1 3JD 10 0
SA1 3JE 10 0
SA1 3JF 10 0
SA1 3JG 10 0
SA1 3JJ 10 Oxford Street 1
SA1 3JN 10 0
SA1 3JP 10 0
SA1 3JS 10 0
SA1 3JU 10 0
SA1 3JW 10 0
SA1 3JX 10 0
SA1 3JY 10 0
SA1 3JZ 10 0
SA1 3LE 10 0
SA1 3LG 10 Saint David's Square 3
SA1 3LH 10 St Mary Street 1
SA1 3LP 10 Saint Mary's Square 2
SA1 3LQ 10 Princess Way 1
SA1 3LW 10 Princess Way 1
SA1 3LY 10 2015‑10 0
SA1 3LZ 10 York Street 3
SA1 3ND 10 2015‑10 0
SA1 3NE 10 0
SA1 3NG 10 Saint David's Place 1
SA1 3NH 10 0
SA1 3PE 10 Swansea Market 3 26
SA1 3PF 10 Swansea Market 3 11
SA1 3PP 10 Caer Street 7
SA1 3PQ 10 Swansea Market 3 18
SA1 3QA 10 0
SA1 3QE 10 Nelson Street 2
SA1 3QF 10 Plymouth Street 1
SA1 3QG 10 0
SA1 3QJ 10 Singleton Street 3
SA1 3QL 10 2013‑07 0
SA1 3QN 10 Singleton Street 1
SA1 3QP 10 0
SA1 3QQ 10 Plymouth Street 1
SA1 3QR 10 0
SA1 3QS 10 0
SA1 3QT 10 0
SA1 3QU 10 0
SA1 3QW 10 The Quadrant Shopping Centre 36
SA1 3QX 10 The Quadrant Shopping Centre 4
SA1 3QY 10 0
SA1 3QZ 10 0
SA1 3RA 10 Albert Row 2
SA1 3RB 10 0
SA1 3RD 10 Oystermouth Road 4
SA1 3RT 10 0
SA1 3RW 10 0
SA1 3RX 10 0
SA1 3RY 10 0
SA1 3SA 10 0
SA1 3SB 10 0
SA1 3SH 10 0
SA1 3SN 10 Oystermouth Road 41 3
SA1 3SQ 10 0
SA1 3SR 10 Oystermouth Road 1
SA1 3SS 10 Trawler Road 2 1
SA1 3ST 50 Oystermouth Road 2 3
SA1 3SY 10 0
SA1 3TA 10 Argyle Street 1
SA1 3TB 10 Argyle Street 1
SA1 3TD 10 0
SA1 3TE 10 0
SA1 3TQ 10 0
SA1 3TS 10 0
SA1 3TT 10 0
SA1 3TU 10 0
SA1 3TX 10 0
SA1 3TY 10 Vincent Street 1
SA1 3TZ 10 0
SA1 3UA 10 Rodney Street 1
SA1 3UB 10 0
SA1 3UD 10 0
SA1 3UE 10 0
SA1 3UH 10 0
SA1 3UJ 10 Oystermouth Road 2
SA1 3UL 10 Oystermouth Road 1
SA1 3UN 10 0
SA1 3UP 10 0
SA1 3UQ 10 0
SA1 3UR 10 0
SA1 3US 10 0
SA1 3UT 10 0
SA1 3UW 10 0
SA1 3UX 10 0
SA1 3WY 10 2019‑01 76 0
SA1 3XA 10 0
SA1 3XB 10 Victoria Quay 1
SA1 3XD 10 0
SA1 3XE 10 0
SA1 3XF 10 Victoria Quay, Marina Quarter 1
SA1 3XG 10 0
SA1 3XH 10 0
SA1 3XL 10 0
SA1 3XY 10 2013‑07 18 0
SA1 3YJ 10 76 0
SA1 3YN 10 2019‑01 76 0
SA1 3YU 10 2019‑01 76 0
SA1 3ZT 10 2019‑01 76 0
SA1 3ZW 10 2013‑07 18 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SA1 3LP 2 Saint␣Mary's␣Square w45897981 St␣Mary's␣Square
SA1 3PE 26 Swansea␣Market n5002927265 Oxford␣Street
SA1 3PE 26 Swansea␣Market n4553950549 Oxford␣Street
SA1 3QW 36 The␣Quadrant␣Shopping␣Centre w15807304 Dillwyn␣Street
SA1 3QX 4 The␣Quadrant␣Shopping␣Centre w745527710
SA1 3QX 4 The␣Quadrant␣Shopping␣Centre n3833489956
SA1 3QX 4 The␣Quadrant␣Shopping␣Centre w16202470
Data derived from OpenStreetMap data, © OpenStreetMap Contributors, licensed under Open Data Commons Open Database License (ODbL). Data derived in part using Code-Point Open under the Open Government Licence v3; Contains OS data © Crown copyright and database right 2020; Contains Royal Mail data © Royal Mail copyright and Database right 2016; Contains National Statistics data © Crown copyright and database right 2020.