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OSM Postcode Mapping for SA4 9 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 comes from Taginfo GB. It is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. (Current data is from 1970‑01‑01 00:00:00 Z.) The data used to compute the OSM mean position comes from the Overpass API and is updated less frequently, usually about once a week. (Current data is from 2024‑07‑12 09:54:26 Z.)

District Sector Units Geo. Units Mapped %
SA4 9 156 155 13 8.4%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SA4 9AA 10 0
SA4 9AB 10 0
SA4 9AD 10 0
SA4 9AE 10 0
SA4 9AF 10 0
SA4 9AG 10 0
SA4 9AH 10 0
SA4 9AJ 10 0
SA4 9AL 10 0
SA4 9AN 10 0
SA4 9AP 10 0
SA4 9AQ 10 Swansea Road 2
SA4 9AR 10 0
SA4 9AS 10 0
SA4 9AT 10 0
SA4 9AU 10 0
SA4 9AW 10 0
SA4 9AX 10 0
SA4 9AY 10 0
SA4 9AZ 10 0
SA4 9BA 10 0
SA4 9BB 10 0
SA4 9BD 10 0
SA4 9BE 10 0
SA4 9BF 10 0
SA4 9BG 10 0
SA4 9BH 10 0
SA4 9BN 10 0
SA4 9BP 10 0
SA4 9BQ 10 0
SA4 9BR 10 0
SA4 9BS 10 0
SA4 9BT 10 0
SA4 9BU 10 0
SA4 9BW 10 Heol Y Gelli 1
SA4 9BX 10 0
SA4 9BY 10 0
SA4 9BZ 10 0
SA4 9DA 10 0
SA4 9DB 10 Pontardulais Road 1
SA4 9DD 10 0
SA4 9DE 10 0
SA4 9DF 10 0
SA4 9DG 10 0
SA4 9DH 10 0
SA4 9DJ 10 0
SA4 9DL 10 0
SA4 9DN 10 0
SA4 9DP 10 0
SA4 9DQ 10 0
SA4 9DR 10 0
SA4 9DS 10 0
SA4 9DT 10 0
SA4 9DU 10 0
SA4 9DW 10 0
SA4 9DX 10 0
SA4 9DY 10 0
SA4 9DZ 10 0
SA4 9EA 10 0
SA4 9EB 10 0
SA4 9ED 10 0
SA4 9EE 10 Swansea Road 1
SA4 9EF 10 0
SA4 9EG 10 0
SA4 9EH 10 0
SA4 9EJ 10 0
SA4 9EL 10 0
SA4 9EN 10 0
SA4 9EP 10 0
SA4 9EQ 10 0
SA4 9ER 10 0
SA4 9ES 10 0
SA4 9ET 10 0
SA4 9EU 10 0
SA4 9EW 10 0
SA4 9EX 10 0
SA4 9EY 10 0
SA4 9EZ 10 0
SA4 9FA 10 Clordir Road 1
SA4 9FB 10 0
SA4 9FD 10 0
SA4 9FE 10 0
SA4 9FF 10 0
SA4 9FG 10 0
SA4 9FH 10 0
SA4 9FL 10 2023‑01 0
SA4 9FN 10 2023‑10 0
SA4 9FP 10 2023‑04 0
SA4 9FQ 10 2024‑01 0
SA4 9FR 10 2024‑01 0
SA4 9FS 50 2024‑04 0
SA4 9FU 10 1
SA4 9FX 10 0
SA4 9FY 10 0
SA4 9GD 10 0
SA4 9GE 10 Gorseinon Road 1
SA4 9GG 10 0
SA4 9GH 10 2015‑10 0
SA4 9GJ 10 2015‑10 0
SA4 9GL 10 0
SA4 9GN 10 0
SA4 9GP 10 0
SA4 9GQ 10 0
SA4 9GR 10 0
SA4 9GS 10 0
SA4 9GT 10 5
SA4 9GU 10 0
SA4 9GW 10 0
SA4 9GX 10 0
SA4 9GY 10 0
SA4 9HA 10 0
SA4 9HB 10 0
SA4 9HD 10 0
SA4 9HE 10 0
SA4 9HF 10 0
SA4 9HG 10 0
SA4 9HJ 10 0
SA4 9HL 10 1
SA4 9HN 10 Phoenix Way 1
SA4 9HP 10 0
SA4 9HR 10 2024‑01 0
SA4 9HS 10 2024‑01 0
SA4 9HW 10 0
SA4 9JG 10 0
SA4 9JJ 10 0
SA4 9JL 10 0
SA4 9LB 10 0
SA4 9NX 10 1
SA4 9NY 10 0
SA4 9QL 10 0
SA4 9QS 10 0
SA4 9QW 10 0
SA4 9QY 10 0
SA4 9QZ 10 0
SA4 9RU 10 0
SA4 9RX 10 0
SA4 9SA 10 19 0
SA4 9SF 10 0
SA4 9SP 10 0
SA4 9SW 10 0
SA4 9WB 10 Llys Mieri 1
SA4 9WD 10 0
SA4 9WE 10 0
SA4 9WF 10 Phoenix Way 1
SA4 9WG 10 0
SA4 9WH 10 0
SA4 9WJ 10 0
SA4 9WL 10 0
SA4 9WN 10 0
SA4 9WQ 10 0
SA4 9WT 10 2013‑07 0
SA4 9WU 10 2019‑01 19 0
SA4 9WW 10 0
SA4 9WX 10 0
SA4 9XS 10 0
SA4 9XU 10 0
SA4 9XZ 10 0
SA4 9YU 10 2019‑01 19 0
SA4 9ZJ 10 0
SA4 9ZP 10 0
SA4 9ZQ 10 0
SA4 9ZR 10 0
SA4 9ZS 10 0
SA4 9ZT 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SA4 9FU 1 w440662863
SA4 9GT 5 w1202367220
SA4 9GT 5 w1087346926
SA4 9GT 5 w1202367219
SA4 9GT 5 w1202367218
SA4 9GT 5 w61395725
SA4 9HL 1 w299734713
SA4 9NX 1 w220180109
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.