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OSM Postcode Mapping for ST1 1 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 %
ST1 1 84 81 18 22.2%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
ST1 1AF 10 2 0
ST1 1AG 10 2 0
ST1 1AP 10 1
ST1 1BS 10 Upper Market Square 1
ST1 1DA 10 0
ST1 1DB 10 0
ST1 1DE 10 0
ST1 1DF 10 0
ST1 1DG 10 0
ST1 1DH 10 0
ST1 1DL 10 0
ST1 1DR 10 Brunswick Street 3
ST1 1DY 10 Gitana Stree 1
ST1 1EA 10 2015‑10 0
ST1 1EB 10 0
ST1 1EE 10 0
ST1 1EF 10 0
ST1 1EG 10 0
ST1 1EH 10 2015‑10 0
ST1 1EN 10 0
ST1 1ER 10 0
ST1 1HE 10 0
ST1 1HG 10 0
ST1 1HJ 10 1
ST1 1HL 10 0
ST1 1HP 10 0
ST1 1HQ 10 0
ST1 1HR 10 0
ST1 1HX 10 0
ST1 1JA 10 Marsh Street South 2
ST1 1JB 10 0
ST1 1JD 10 0
ST1 1JJ 10 0
ST1 1JN 10 0
ST1 1JP 10 0
ST1 1JQ 10 0
ST1 1JU 10 0
ST1 1JW 10 Stafford Street 1
ST1 1JX 10 0
ST1 1JY 10 0
ST1 1LA 10 0
ST1 1LD 10 0
ST1 1LE 10 Fountain Square 2 1
ST1 1LG 10 0
ST1 1LH 10 0
ST1 1LL 10 0
ST1 1LQ 10 0
ST1 1LR 10 2013‑07 0
ST1 1LS 10 0
ST1 1LT 10 0
ST1 1LU 10 0
ST1 1LW 10 0
ST1 1LX 10 0
ST1 1LY 10 0
ST1 1NA 10 0
ST1 1NB 10 2013‑07 0
ST1 1ND 10 0
ST1 1NE 10 Percy Street 1
ST1 1NG 10 2015‑10 0
ST1 1NP 10 0
ST1 1NQ 10 Tontine Street 1
ST1 1NR 10 2 0
ST1 1NS 10 Upper Market Square 3
ST1 1NT 10 0
ST1 1NU 10 0
ST1 1NW 10 2019‑01 67 0
ST1 1PA 10 0
ST1 1PF 10 0
ST1 1PP 10 2020‑12 67 0
ST1 1PQ 10 0
ST1 1PS 10 Quadrant Road 2 1
ST1 1PU 10 0
ST1 1PW 10 Parliament Row 2
ST1 1PX 10 2018‑04 0
ST1 1PZ 10 Upper Market Square 1
ST1 1QA 10 67 0
ST1 1QD 10 0
ST1 1QE 10 0
ST1 1QF 10 Albion Street 1
ST1 1QH 10 0
ST1 1QL 10 0
ST1 1QP 10 0
ST1 1QQ 10 Albion Street 1
ST1 1QS 10 Albion Square 1
ST1 1QT 10 Old Hall Street 1
ST1 1QY 10 2013‑07 2 0
ST1 1RA 10 2 0
ST1 1RB 10 2013‑07 2 0
ST1 1RF 10 0
ST1 1RZ 10 2 0
ST1 1SA 10 0
ST1 1SB 10 0
ST1 1WN 10 0
ST1 1WZ 10 0
ST1 1XP 10 67 0
ST1 1XR 10 67 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
ST1 1AP 1 w149043061
ST1 1HJ 1 w713534571
ST1 1NS 3 Upper␣Market␣Square n5378726901 Market␣Square
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.