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OSM Postcode Mapping for L1 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 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 2024‑04‑10 08:21:28 Z.)

District Sector Units Geo. Units Mapped %
L1 1 74 74 29 39.2%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
L1 1AH 10 3 0
L1 1DA 10 Church Street 1
L1 1DB 10 2013‑07 0
L1 1DE 10 0
L1 1DF 10 Church Street 1
L1 1DG 10 Church Street 7
L1 1DJ 10 Parker Street 2
L1 1DN 10 Parker Street 1
L1 1DP 10 Parker Street 1
L1 1DQ 10 0
L1 1DS 10 Tarleton Street 1
L1 1EB 10 Williamson Street 4
L1 1ED 10 0
L1 1EE 10 Richmond Street 1
L1 1EF 10 0
L1 1EJ 10 2 0
L1 1EL 10 0
L1 1EP 10 0
L1 1EQ 10 Williamson Square 3
L1 1ES 10 0
L1 1FS 10 0
L1 1HF 10 St Johns Lane 2
L1 1HL 10 0
L1 1HQ 10 0
L1 1HU 10 Great Charlotte Street 7
L1 1HW 10 Cases Street 2
L1 1JA 10 Pudsey Street 1
L1 1JD 10 Lime Street 3
L1 1JE 10 Lime Street 1
L1 1JF 10 3 0
L1 1JJ 10 0
L1 1JN 10 Lime Street 7
L1 1JP 10 Ranelagh Street 4
L1 1JQ 10 Lime Street 3
L1 1JR 10 Ranelagh Street 3
L1 1JT 10 Ranelagh Street 1
L1 1JW 10 Ranelagh Street 6
L1 1JX 10 0
L1 1LD 10 0
L1 1LE 10 0
L1 1LG 10 0
L1 1LH 10 2 0
L1 1LJ 10 2 0
L1 1LL 10 2 0
L1 1LN 10 0
L1 1LP 10 0
L1 1LQ 10 2021‑06 0
L1 1LR 10 2 0
L1 1LS 10 St John's Way 1
L1 1LT 10 St John's Square 1
L1 1LU 10 0
L1 1LW 10 0
L1 1LX 10 0
L1 1LY 10 0
L1 1LZ 10 0
L1 1NA 10 0
L1 1NB 10 0
L1 1ND 10 0
L1 1NE 10 0
L1 1NG 10 0
L1 1NH 10 0
L1 1NN 10 2 0
L1 1NP 10 2 0
L1 1NQ 10 0
L1 1NT 10 0
L1 1NU 10 0
L1 1NW 10 2 0
L1 1NY 10 0
L1 1PW 10 2 0
L1 1QE 10 Ranelagh Street 6
L1 1QR 10 Clayton Square 3
L1 1QT 10 2015‑10 0
L1 1QY 10 0
L1 1RD 10 0
L1 1RG 10 0
L1 1RH 10 Queen Square 6
L1 1RJ 10 Lime Street 1
L1 1RL 10 Houghton Street 2 1
L1 1RQ 10 3 0

Units with street mismatches in this sector:

No mismatches found in this sector.

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.