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OSM Postcode Mapping for CH1 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 %
CH1 3 123 121 31 25.6%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
CH1 3AA 10 Station Road 119 1
CH1 3AB 10 0
CH1 3AD 10 0
CH1 3AE 10 City Road 21
CH1 3AF 10 City Road 1
CH1 3AG 10 0
CH1 3AH 10 City Road 1
CH1 3AJ 10 0
CH1 3AL 10 0
CH1 3AN 10 0
CH1 3AP 10 0
CH1 3AQ 10 City Road 1
CH1 3AR 10 0
CH1 3AS 10 The Square 1
CH1 3AT 10 City Road 1
CH1 3AX 10 0
CH1 3BA 10 0
CH1 3BB 10 0
CH1 3BD 10 0
CH1 3BE 10 119 0
CH1 3BF 10 0
CH1 3BG 10 0
CH1 3BH 10 0
CH1 3BJ 10 0
CH1 3BL 10 0
CH1 3BN 10 0
CH1 3BP 10 Crewe Street 1
CH1 3BQ 10 0
CH1 3BR 10 0
CH1 3BT 10 0
CH1 3BU 10 0
CH1 3BW 10 0
CH1 3BX 10 Francis Street 1
CH1 3BY 10 0
CH1 3BZ 10 0
CH1 3DA 10 Crewe Street 6
CH1 3DB 10 0
CH1 3DD 10 0
CH1 3DE 10 0
CH1 3DF 10 0
CH1 3DH 10 0
CH1 3DN 10 Brook Street 18
CH1 3DP 10 Brook Street 1
CH1 3DR 10 Station Road 1
CH1 3DS 10 0
CH1 3DT 10 0
CH1 3DU 10 Brook Street 13
CH1 3DW 10 0
CH1 3DX 10 Brook Street 16
CH1 3DY 10 Brook Street 2
CH1 3DZ 10 Brook Street 21
CH1 3EA 10 0
CH1 3EB 10 0
CH1 3ED 10 0
CH1 3EE 10 0
CH1 3EF 10 0
CH1 3EH 10 0
CH1 3EL 10 2018‑10 0
CH1 3EQ 10 George Street 1
CH1 3ER 10 0
CH1 3ET 10 0
CH1 3EU 10 0
CH1 3EW 10 Black Diamond Park 0
CH1 3EX 10 0
CH1 3EY 10 Saint James Street 2
CH1 3FA 10 0
CH1 3FS 10 0
CH1 3GU 10 2018‑10 119 0
CH1 3GW 10 2 0
CH1 3GY 10 2 0
CH1 3HB 10 0
CH1 3HD 10 0
CH1 3HE 10 Newtown Close, St Anne Street 2
CH1 3HF 10 0
CH1 3HG 10 2 0
CH1 3HH 10 0
CH1 3HJ 10 0
CH1 3HN 10 2 0
CH1 3HP 10 0
CH1 3HQ 10 2 0
CH1 3HR 10 0
CH1 3HS 10 0
CH1 3HT 10 St Anne Street 1
CH1 3HU 10 0
CH1 3HW 10 2 0
CH1 3HY 10 2 0
CH1 3HZ 10 2 0
CH1 3JA 10 0
CH1 3JD 10 0
CH1 3JE 10 0
CH1 3JF 10 0
CH1 3JG 10 0
CH1 3JH 10 0
CH1 3JJ 10 Frodsham Street 6
CH1 3JL 10 Frodsham Street 5
CH1 3JN 10 0
CH1 3JP 10 0
CH1 3JQ 10 0
CH1 3JS 10 Frodsham Street 1
CH1 3JT 10 0
CH1 3JW 10 0
CH1 3LA 10 0
CH1 3LE 10 0
CH1 3LF 10 Union Walk 1
CH1 3LG 10 0
CH1 3LH 10 Frodsham Street 1
CH1 3LJ 10 2013‑07 0
CH1 3LN 10 0
CH1 3LP 10 0
CH1 3LQ 10 0
CH1 3LR 10 0
CH1 3LW 10 0
CH1 3LY 10 0
CH1 3LZ 10 0
CH1 3NA 10 0
CH1 3NB 10 0
CH1 3ND 10 Egerton Street 1
CH1 3NE 10 0
CH1 3NF 10 Milton Street 1
CH1 3NH 10 0
CH1 3NJ 10 0
CH1 3NL 10 0
CH1 3NP 10 0
CH1 3NQ 10 0
CH1 3NR 10 0
CH1 3NS 10 2 1
CH1 3NT 10 Station Road 2 1
CH1 3NW 10 2018‑10 119 0
CH1 3PA 10 Station Road 1
CH1 3SH 10 2013‑07 0
CH1 3WN 10 119 0
CH1 3WP 10 2018‑10 119 0
CH1 3YB 10 2013‑07 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
CH1 3AE 21 City␣Road w250266904
CH1 3AE 21 City␣Road w250266884
CH1 3AE 21 City␣Road w250266887
CH1 3AE 21 City␣Road w250266899
CH1 3DU 13 Brook␣Street n6329144090 Station␣Road
CH1 3DY 2 Brook␣Street n1807847084 Brookdale␣Place
CH1 3HE 2 Newtown␣Close,␣St␣Anne␣Street n8284410743 Newtown␣Close
CH1 3NS 1 n502502045
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.