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OSM Postcode Mapping for N21 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 %
N21 3 157 156 10 6.4%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
N21 3AA 10 0
N21 3AB 10 0
N21 3AD 10 0
N21 3AE 10 0
N21 3AG 10 0
N21 3AH 10 0
N21 3AJ 10 0
N21 3AL 10 0
N21 3AN 10 0
N21 3AP 10 0
N21 3AR 10 0
N21 3AS 10 0
N21 3AT 10 0
N21 3AU 10 0
N21 3AW 10 0
N21 3AX 10 0
N21 3AY 10 0
N21 3BA 10 0
N21 3BB 10 0
N21 3BD 10 0
N21 3BE 10 0
N21 3BF 10 0
N21 3BG 10 0
N21 3BH 10 2017‑04 0
N21 3BJ 10 0
N21 3BL 10 0
N21 3BN 10 0
N21 3BP 10 0
N21 3BQ 10 0
N21 3BS 10 0
N21 3BT 10 0
N21 3BU 10 0
N21 3BX 10 0
N21 3BY 10 0
N21 3DA 10 0
N21 3DB 10 0
N21 3DD 10 0
N21 3DE 10 0
N21 3DG 10 0
N21 3DH 10 0
N21 3DN 10 0
N21 3DP 10 0
N21 3DR 10 0
N21 3DS 10 0
N21 3DT 10 0
N21 3DU 10 0
N21 3DX 10 0
N21 3DY 10 0
N21 3DZ 10 2018‑10 48 0
N21 3EA 10 0
N21 3EB 10 0
N21 3ED 10 0
N21 3EE 10 0
N21 3EG 10 0
N21 3EH 10 0
N21 3EJ 10 0
N21 3EL 10 0
N21 3EN 10 0
N21 3EP 10 0
N21 3EQ 10 0
N21 3ER 10 Fords Grove 1
N21 3ES 10 0
N21 3EU 10 2 0
N21 3HA 10 0
N21 3HB 10 0
N21 3HD 10 0
N21 3HE 10 1
N21 3HF 10 0
N21 3HG 10 0
N21 3HH 10 0
N21 3HJ 10 0
N21 3HL 10 0
N21 3HN 10 0
N21 3HP 10 0
N21 3HQ 10 0
N21 3HR 10 0
N21 3HS 10 1
N21 3HT 10 0
N21 3HU 10 0
N21 3HX 10 0
N21 3HY 10 0
N21 3JA 10 0
N21 3JB 10 0
N21 3JD 10 0
N21 3JE 10 0
N21 3JF 10 0
N21 3JH 10 0
N21 3JP 10 0
N21 3JQ 10 Farm Road 1
N21 3JR 10 0
N21 3JS 10 0
N21 3JT 10 0
N21 3JU 10 0
N21 3JX 10 0
N21 3JY 10 0
N21 3LA 10 0
N21 3LB 10 0
N21 3LD 10 0
N21 3LE 10 0
N21 3LG 10 0
N21 3LH 10 Hoppers Road 6
N21 3LJ 10 1
N21 3LL 10 0
N21 3LN 10 0
N21 3LP 10 0
N21 3LX 10 0
N21 3NA 10 0
N21 3NB 10 Station Road 2 2
N21 3ND 10 2 0
N21 3NE 10 0
N21 3NF 10 0
N21 3NG 10 0
N21 3NJ 10 0
N21 3NL 10 0
N21 3NN 10 0
N21 3NP 10 Hoppers Road 2
N21 3NQ 10 Station Road 1
N21 3NR 10 0
N21 3NS 10 0
N21 3NT 10 0
N21 3NU 10 0
N21 3NW 10 2018‑10 48 0
N21 3NX 10 0
N21 3PA 10 0
N21 3PB 10 0
N21 3PD 10 0
N21 3PE 10 0
N21 3PG 10 0
N21 3PH 10 0
N21 3PJ 10 0
N21 3PL 10 0
N21 3PS 10 0
N21 3PT 10 0
N21 3PU 10 0
N21 3PX 10 0
N21 3PY 10 0
N21 3PZ 10 0
N21 3QA 10 0
N21 3QB 10 0
N21 3QD 10 0
N21 3QE 10 0
N21 3QG 10 0
N21 3QH 10 0
N21 3QJ 10 0
N21 3QL 10 0
N21 3QN 10 0
N21 3QP 10 0
N21 3RA 10 0
N21 3RB 10 0
N21 3RE 10 0
N21 3RF 10 0
N21 3RJ 10 0
N21 3RL 10 0
N21 3RS 10 Green Lanes 1
N21 3RU 10 0
N21 3RX 10 0
N21 3SA 10 0
N21 3SB 10 0
N21 3SD 10 0
N21 3SL 10 0
N21 3UW 10 2020‑10 48 0
N21 3UZ 10 0
N21 3WE 10 0
N21 3WL 10 48 0
N21 3WP 10 2015‑10 0
N21 3WT 10 2020‑07 48 0
N21 3WW 10 0
N21 3WX 10 0
N21 3XJ 10 2018‑10 48 0
N21 3XL 10 2018‑10 48 0
N21 3XN 10 0
N21 3XQ 10 0
N21 3XR 10 2020‑10 48 0
N21 3XS 10 0
N21 3XW 10 0
N21 3XY 10 2019‑07 48 0
N21 3YA 10 2013‑07 0
N21 3YB 10 0
N21 3YF 10 0
N21 3ZF 10 2013‑07 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
N21 3HE 1 w9405486
N21 3HS 1 w4413922
N21 3LJ 1 w4413948
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.