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OSM Postcode Mapping for SN1 4 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 %
SN1 4 151 151 25 16.6%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SN1 4AB 10 2021‑12 Wood Street 2
SN1 4AH 10 2021‑12 0
SN1 4AJ 10 2021‑12 0
SN1 4AL 10 2021‑12 Wood Street 1
SN1 4AN 10 2021‑12 Wood Street 1
SN1 4AP 10 2021‑12 0
SN1 4AQ 10 2021‑12 0
SN1 4AS 10 2021‑12 0
SN1 4AT 10 2021‑12 0
SN1 4AU 10 2021‑12 0
SN1 4AX 10 2021‑12 0
SN1 4AY 10 2021‑12 0
SN1 4BA 10 2021‑12 1
SN1 4BB 10 2021‑12 0
SN1 4BD 10 2021‑12 Devizes Road 2
SN1 4BF 10 2021‑12 0
SN1 4BG 10 2021‑12 Devizes Road 1
SN1 4BH 10 2021‑12 0
SN1 4BJ 10 2021‑12 Devizes Road 2
SN1 4BL 10 2021‑12 0
SN1 4BP 10 2021‑12 0
SN1 4BQ 10 2021‑12 Devizes Road 2
SN1 4BS 10 2021‑12 0
SN1 4BT 10 2021‑12 0
SN1 4BY 10 2021‑12 Lethbridge Road 2
SN1 4BZ 10 2021‑12 0
SN1 4DA 10 2021‑12 0
SN1 4DB 10 2021‑12 0
SN1 4DD 10 2021‑12 0
SN1 4DE 10 2021‑12 0
SN1 4DF 10 2021‑12 0
SN1 4DG 10 2021‑12 0
SN1 4DH 10 2021‑12 0
SN1 4DJ 10 2021‑12 0
SN1 4DL 10 2021‑12 0
SN1 4DN 10 2021‑12 0
SN1 4DP 10 2021‑12 0
SN1 4DQ 10 2021‑12 0
SN1 4DR 10 2021‑12 0
SN1 4DS 10 2021‑12 0
SN1 4DT 10 2021‑12 0
SN1 4DU 10 2021‑12 0
SN1 4DW 10 2021‑12 0
SN1 4DX 10 2021‑12 0
SN1 4DY 10 2021‑12 0
SN1 4DZ 10 2021‑12 0
SN1 4EA 10 2021‑12 0
SN1 4EB 10 2021‑12 0
SN1 4ED 10 2021‑12 0
SN1 4EE 10 2021‑12 0
SN1 4EF 10 2021‑12 0
SN1 4EG 10 2021‑12 0
SN1 4EH 10 2021‑12 0
SN1 4EJ 10 2021‑12 0
SN1 4EL 10 2021‑12 0
SN1 4EN 10 2021‑12 0
SN1 4EP 10 2021‑12 0
SN1 4EQ 10 2021‑12 0
SN1 4ER 10 2021‑12 0
SN1 4ES 10 2021‑12 0
SN1 4ET 10 2021‑12 0
SN1 4EU 10 2021‑12 Bowling Green Lane 1
SN1 4EW 10 2021‑12 0
SN1 4EX 10 2021‑12 The Quarries 1
SN1 4EY 10 2021‑12 0
SN1 4EZ 10 2021‑12 0
SN1 4FE 10 2021‑12 0
SN1 4FF 10 2021‑12 0
SN1 4FZ 10 2021‑12 0
SN1 4GA 10 2021‑12 0
SN1 4GB 10 2021‑12 Curie Avenue 2
SN1 4GD 10 2021‑12 0
SN1 4GE 10 2021‑12 0
SN1 4GF 10 2021‑12 0
SN1 4GG 10 2021‑12 1
SN1 4GH 10 2021‑12 Pasteur Drive 1
SN1 4GJ 10 2021‑12 Pasteur Drive 1
SN1 4GL 10 2021‑12 0
SN1 4GN 10 2021‑12 0
SN1 4GP 10 2021‑12 Seacole Crescent 1
SN1 4GQ 10 2021‑12 Seacole Crescent 1
SN1 4GR 10 2021‑12 0
SN1 4GS 10 2021‑12 0
SN1 4GT 10 2021‑12 0
SN1 4GU 10 2021‑12 0
SN1 4GW 10 2021‑12 0
SN1 4GX 10 2021‑12 0
SN1 4GY 10 2021‑12 0
SN1 4GZ 10 2021‑12 0
SN1 4HB 10 2021‑12 0
SN1 4HD 10 2021‑12 0
SN1 4HE 10 2021‑12 0
SN1 4HF 10 2021‑12 0
SN1 4HG 10 2021‑12 0
SN1 4HH 10 2021‑12 0
SN1 4HJ 10 2021‑12 0
SN1 4HP 10 2021‑12 0
SN1 4HR 10 2021‑12 0
SN1 4HS 10 2021‑12 0
SN1 4HT 10 2021‑12 0
SN1 4HU 10 2021‑12 0
SN1 4HX 10 2021‑12 0
SN1 4HY 10 2021‑12 0
SN1 4HZ 10 0
SN1 4JA 10 2021‑12 The Mall 27
SN1 4JB 10 0
SN1 4JD 10 0
SN1 4JE 10 2021‑12 The Mall 1
SN1 4JG 10 2021‑12 The Mall 45
SN1 4JN 10 2021‑12 0
SN1 4JP 10 2021‑12 0
SN1 4JQ 10 2021‑12 0
SN1 4JS 10 2021‑12 Okus Road 1
SN1 4JT 10 2021‑12 0
SN1 4JW 10 2021‑12 0
SN1 4JX 10 2021‑12 0
SN1 4JY 10 2021‑12 0
SN1 4JZ 10 2021‑12 0
SN1 4LA 10 2021‑12 0
SN1 4LB 10 2021‑12 0
SN1 4LD 10 2021‑12 0
SN1 4LE 10 2021‑12 0
SN1 4LG 10 2021‑12 0
SN1 4LH 10 2021‑12 0
SN1 4LJ 10 2021‑12 0
SN1 4LL 10 2021‑12 0
SN1 4LN 10 2021‑12 0
SN1 4LP 10 2021‑12 0
SN1 4LQ 10 2021‑12 0
SN1 4LR 10 2021‑12 0
SN1 4LS 10 2021‑12 0
SN1 4LT 10 2021‑12 0
SN1 4LU 10 2021‑12 0
SN1 4LW 10 2021‑12 0
SN1 4LX 10 2021‑12 0
SN1 4LZ 10 2021‑12 0
SN1 4NA 10 2021‑12 0
SN1 4NB 10 2021‑12 0
SN1 4ND 10 2021‑12 0
SN1 4NE 10 2021‑12 0
SN1 4NG 10 2021‑12 Kingshill Road 1
SN1 4NH 10 2021‑12 0
SN1 4NJ 10 2021‑12 0
SN1 4NL 10 2021‑12 0
SN1 4NN 10 2021‑12 0
SN1 4NP 10 2021‑12 0
SN1 4NQ 10 2021‑12 Wootton Bassett Road 1
SN1 4NR 10 2021‑12 0
SN1 4NS 10 2021‑12 0
SN1 4NT 10 2021‑12 0
SN1 4PH 10 2021‑12 0
SN1 4PN 10 2021‑12 0
SN1 4PW 10 2021‑12 Dunsford Close 1
SN1 4RW 10 2021‑12 Croft Road 1
SN1 4WE 10 2013‑07 37 0
SN1 4ZQ 10 37 0
SN1 4ZW 10 2015‑10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SN1 4BA 1 w173323993
SN1 4GG 1 w364254458
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.