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OSM Postcode Mapping for LL41 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 %
LL41 4 169 169 12 7.1%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
LL41 4AA 10 0
LL41 4AB 10 0
LL41 4AD 10 0
LL41 4AE 10 0
LL41 4AF 10 1
LL41 4AG 10 0
LL41 4AH 10 0
LL41 4AL 10 0
LL41 4AN 10 0
LL41 4AP 10 0
LL41 4AR 10 0
LL41 4AS 10 0
LL41 4AT 10 0
LL41 4AU 10 0
LL41 4AW 10 0
LL41 4BA 10 0
LL41 4BB 10 0
LL41 4BD 10 0
LL41 4BE 10 0
LL41 4BG 10 0
LL41 4BH 10 0
LL41 4BL 10 0
LL41 4BN 10 1
LL41 4BU 10 0
LL41 4BW 10 0
LL41 4BY 10 0
LL41 4DA 10 0
LL41 4DB 10 0
LL41 4DD 10 0
LL41 4DE 10 0
LL41 4DF 10 0
LL41 4DG 10 0
LL41 4DH 10 0
LL41 4DL 10 0
LL41 4DN 10 0
LL41 4DS 10 0
LL41 4DT 10 0
LL41 4DU 10 0
LL41 4DY 10 1
LL41 4DZ 10 0
LL41 4EA 10 0
LL41 4EB 10 0
LL41 4ED 10 0
LL41 4EE 10 0
LL41 4EF 10 0
LL41 4EG 10 0
LL41 4EH 10 0
LL41 4EL 10 0
LL41 4EN 10 0
LL41 4EP 10 0
LL41 4ER 10 0
LL41 4ES 10 0
LL41 4ET 10 0
LL41 4EU 10 0
LL41 4EW 10 0
LL41 4EY 10 0
LL41 4HA 10 0
LL41 4HF 10 0
LL41 4HG 10 0
LL41 4HH 10 0
LL41 4HL 10 0
LL41 4HN 10 0
LL41 4HP 10 0
LL41 4HR 10 0
LL41 4HS 10 0
LL41 4HT 10 0
LL41 4HU 10 0
LL41 4HW 10 0
LL41 4HY 10 0
LL41 4LA 10 0
LL41 4LB 10 0
LL41 4LF 10 0
LL41 4LG 10 0
LL41 4LH 10 0
LL41 4LL 10 0
LL41 4LN 10 0
LL41 4LP 10 0
LL41 4LR 10 0
LL41 4LS 10 0
LL41 4LT 10 0
LL41 4LU 10 Pen-y-Bryn 1
LL41 4LW 10 0
LL41 4LY 10 0
LL41 4NA 10 0
LL41 4NB 10 0
LL41 4ND 10 0
LL41 4NE 10 0
LL41 4NF 10 1
LL41 4NG 10 0
LL41 4NH 10 0
LL41 4NN 10 0
LL41 4NP 10 0
LL41 4NQ 10 0
LL41 4NR 10 0
LL41 4NS 10 0
LL41 4NT 10 0
LL41 4NU 10 0
LL41 4NW 10 0
LL41 4NY 10 0
LL41 4PA 10 0
LL41 4PB 10 Church Square 1
LL41 4PD 10 0
LL41 4PE 10 0
LL41 4PG 10 3
LL41 4PH 10 0
LL41 4PL 10 0
LL41 4PN 10 0
LL41 4PP 10 0
LL41 4PQ 10 0
LL41 4PR 10 0
LL41 4PS 10 0
LL41 4PT 10 0
LL41 4PU 10 0
LL41 4PW 10 0
LL41 4PY 10 0
LL41 4RA 10 0
LL41 4RB 10 0
LL41 4RD 10 0
LL41 4RE 10 0
LL41 4RF 10 0
LL41 4RP 10 0
LL41 4RR 10 0
LL41 4RS 10 0
LL41 4RT 10 0
LL41 4RU 10 0
LL41 4RW 10 0
LL41 4RY 10 0
LL41 4SA 10 0
LL41 4SB 10 0
LL41 4SD 10 0
LL41 4SE 10 Fronwnion Street 2
LL41 4SF 10 Chapel Street 1
LL41 4SG 10 0
LL41 4SH 10 0
LL41 4SL 10 0
LL41 4SN 10 0
LL41 4SP 10 0
LL41 4SR 10 0
LL41 4SS 10 0
LL41 4SW 10 0
LL41 4TA 10 0
LL41 4TB 10 Station Road, Trawsfynedd 1
LL41 4TD 10 Station Road 1
LL41 4TE 10 0
LL41 4TF 10 0
LL41 4TG 10 0
LL41 4TH 10 0
LL41 4TL 10 0
LL41 4TN 10 0
LL41 4TP 10 0
LL41 4TR 10 0
LL41 4TS 10 0
LL41 4TW 10 0
LL41 4UB 10 0
LL41 4UD 10 0
LL41 4UE 10 0
LL41 4UF 10 0
LL41 4UG 10 0
LL41 4UH 10 0
LL41 4UL 10 0
LL41 4UN 10 0
LL41 4UP 10 0
LL41 4UR 10 0
LL41 4UT 10 0
LL41 4UU 10 0
LL41 4UW 10 0
LL41 4UY 10 0
LL41 4WY 10 0
LL41 4YB 10 1
LL41 4YD 10 0
LL41 4YE 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
LL41 4AF 1 w461997366
LL41 4BN 1 w253061028
LL41 4DY 1 w371587137
LL41 4NF 1 w338684660
LL41 4PG 3 w244438716
LL41 4PG 3 w244438717
LL41 4PG 3 w244438719
LL41 4SE 2 Fronwnion␣Street w290322354
LL41 4YB 1 n1757409757
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.