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OSM Postcode Mapping for SG6 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 %
SG6 3 201 200 80 40.0%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SG6 3AA 10 Broadway 1
SG6 3AD 10 2 1
SG6 3AE 10 2 1
SG6 3AJ 10 2021‑06 Letchworth Garden City 2
SG6 3AL 10 2 0
SG6 3AN 10 Station Place 4
SG6 3AQ 10 Station Place 2
SG6 3AR 10 Station Parade 2
SG6 3AU 10 Station Road 1
SG6 3AW 10 Station Parade 5
SG6 3AX 10 0
SG6 3AY 10 0
SG6 3AZ 10 Station Road 2
SG6 3BA 10 1
SG6 3BB 10 Station Road 6
SG6 3BE 10 Station Road 2
SG6 3BF 10 Broadway 1
SG6 3BG 10 2013‑07 Station Road 1
SG6 3BH 10 0
SG6 3BJ 10 Station Road 10
SG6 3BL 10 1
SG6 3BQ 10 Station Road 4
SG6 3BX 10 Broadway 8
SG6 3BY 10 Arena Parade 11
SG6 3DA 10 Eastcheap 11
SG6 3DD 10 Eastcheap 7
SG6 3DE 10 Eastcheap 9
SG6 3DG 10 Eastcheap 4
SG6 3DJ 10 Central Approach 2
SG6 3DL 10 Central Approach 13
SG6 3DN 10 Commerce Way 11
SG6 3DP 10 Central Approach 4
SG6 3DR 10 2 1
SG6 3DS 10 0
SG6 3DU 10 Gernon Road 2
SG6 3DW 10 1
SG6 3DY 10 2 0
SG6 3DZ 10 Leys Avenue 5
SG6 3EA 10 Leys Avenue 4
SG6 3EB 10 Leys Avenue 1
SG6 3ED 10 Leys Avenue 4
SG6 3EE 10 Leys Avenue 7
SG6 3EF 10 Leys Avenue 4
SG6 3EG 10 Leys Avenue 5
SG6 3EJ 10 Commerce Way 1
SG6 3EL 10 The Wynd 3
SG6 3EN 10 The Wynd 12
SG6 3EP 10 0
SG6 3EQ 10 Leys Avenue 17
SG6 3ER 10 2
SG6 3ES 10 The Arcade 6
SG6 3ET 10 The Arcade 5
SG6 3EU 10 Leys Avenue 2
SG6 3EW 10 Leys Avenue 8
SG6 3EZ 10 2013‑07 0
SG6 3GB 10 2016‑10 Broadway 1
SG6 3GF 10 2019‑01 0
SG6 3GY 10 0
SG6 3GZ 10 0
SG6 3HD 10 0
SG6 3HE 10 0
SG6 3HF 10 0
SG6 3HG 10 0
SG6 3HH 10 0
SG6 3HJ 10 0
SG6 3HL 10 1
SG6 3HN 10 2020‑12 1
SG6 3HQ 10 0
SG6 3HR 10 1
SG6 3HS 10 1
SG6 3HT 10 1
SG6 3HU 10 1
SG6 3HW 10 1
SG6 3HX 10 0
SG6 3HY 10 0
SG6 3HZ 10 0
SG6 3JA 10 0
SG6 3JB 10 0
SG6 3JD 10 1
SG6 3JE 10 1
SG6 3JF 10 Gernon Road 4 1
SG6 3JH 10 0
SG6 3JJ 10 0
SG6 3JN 10 0
SG6 3JP 10 0
SG6 3JR 10 0
SG6 3JS 10 0
SG6 3JT 10 0
SG6 3JU 10 0
SG6 3JW 10 0
SG6 3JX 10 0
SG6 3JY 10 0
SG6 3JZ 10 Barrington Road 2
SG6 3LB 10 Baldock Road 0
SG6 3LD 10 0
SG6 3LE 10 0
SG6 3LF 10 0
SG6 3LL 10 0
SG6 3LN 10 0
SG6 3LP 10 0
SG6 3LR 10 0
SG6 3LS 10 0
SG6 3LT 10 0
SG6 3LU 10 0
SG6 3LW 10 0
SG6 3LX 10 0
SG6 3LY 10 Briar Patch Lane 1
SG6 3NA 10 0
SG6 3NB 10 0
SG6 3ND 10 0
SG6 3NE 10 1
SG6 3NF 10 0
SG6 3NG 10 0
SG6 3NH 10 0
SG6 3NJ 10 0
SG6 3NL 10 0
SG6 3NN 10 0
SG6 3NP 10 Letchworth Lane 1
SG6 3NQ 10 Letchworth Lane 1
SG6 3NR 10 0
SG6 3NS 10 2 0
SG6 3NW 10 0
SG6 3NX 10 1
SG6 3NZ 10 1
SG6 3PA 10 1
SG6 3PF 10 1
SG6 3PH 10 0
SG6 3PJ 10 Broadway 2
SG6 3PL 10 0
SG6 3PN 10 1
SG6 3PQ 10 0
SG6 3PR 10 Spring Road 1
SG6 3PS 10 2013‑07 0
SG6 3PT 10 0
SG6 3PU 10 0
SG6 3PW 10 1
SG6 3PX 10 0
SG6 3PY 10 0
SG6 3PZ 10 0
SG6 3QA 10 Highfield 1
SG6 3QB 10 Highfield 1
SG6 3QD 10 0
SG6 3QG 10 2019‑07 1
SG6 3QJ 10 0
SG6 3QL 10 0
SG6 3QN 10 0
SG6 3QP 10 0
SG6 3QR 10 0
SG6 3QS 10 0
SG6 3QT 10 0
SG6 3QU 10 0
SG6 3QW 10 0
SG6 3QX 10 0
SG6 3QY 10 0
SG6 3QZ 10 0
SG6 3RA 10 0
SG6 3RB 10 0
SG6 3RD 10 0
SG6 3RE 10 0
SG6 3RF 10 0
SG6 3RG 10 0
SG6 3RH 10 0
SG6 3RJ 10 0
SG6 3RL 10 0
SG6 3RN 10 0
SG6 3RP 10 0
SG6 3RQ 10 0
SG6 3RR 10 0
SG6 3RS 10 0
SG6 3RT 10 0
SG6 3RU 10 0
SG6 3RW 10 0
SG6 3RZ 10 Station Place 2 1
SG6 3SA 10 2 0
SG6 3SB 10 1
SG6 3SD 10 0
SG6 3SE 10 0
SG6 3SF 10 0
SG6 3SG 10 0
SG6 3SH 10 Spring Road 1
SG6 3SJ 10 0
SG6 3SL 10 0
SG6 3SP 10 0
SG6 3SQ 10 Spring Road 2
SG6 3SR 10 Campers Avenue 0
SG6 3SS 10 0
SG6 3ST 10 0
SG6 3TA 10 1
SG6 3TB 10 1
SG6 3TE 10 2018‑01 0
SG6 3TG 10 0
SG6 3TH 10 0
SG6 3TP 10 1
SG6 3TQ 10 0
SG6 3TR 10 2
SG6 3TS 10 Broadway 1
SG6 3TT 10 0
SG6 3TU 10 0
SG6 3TX 10 0
SG6 3TY 10 0
SG6 3TZ 10 0
SG6 3UA 10 0
SG6 3UB 10 0
SG6 3UD 10 0
SG6 3UE 10 0
SG6 3UF 10 Fouracres 1
SG6 3UG 10 0
SG6 3WA 10 Station Road 2
SG6 3WB 10 2 0
SG6 3WX 10 26 0
SG6 3XH 10 2 0
SG6 3XU 10 2 0
SG6 3XY 10 0
SG6 3XZ 10 2019‑01 0
SG6 3ZJ 10 2019‑01 0
SG6 3ZQ 10 2013‑07 2 0
SG6 3ZU 10 4 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SG6 3AD 1 w294043549
SG6 3AE 1 w673004312
SG6 3AN 4 Station␣Place n1492886819 Letchworth␣Railway␣Station
SG6 3AN 4 Station␣Place w135860684
SG6 3AR 2 Station␣Parade w886255108
SG6 3BA 1 w469722750
SG6 3BB 6 Station␣Road w884322476
SG6 3BJ 10 Station␣Road w502893797
SG6 3BL 1 w178312271
SG6 3BX 8 Broadway w888932031
SG6 3BY 11 Arena␣Parade w884454960 Broadway
SG6 3DL 13 Central␣Approach n4645731905 Garden␣Square␣Shopping␣Centre
SG6 3DR 1 w135859974
SG6 3DU 2 Gernon␣Road w136038138
SG6 3DW 1 w135859977
SG6 3ED 4 Leys␣Avenue w884171179
SG6 3ER 2 w502893796
SG6 3ER 2 w884306686
SG6 3ES 6 The␣Arcade w884409523 Leys␣Avenue
SG6 3ES 6 The␣Arcade w178312289
SG6 3HL 1 w502894374
SG6 3HR 1 w502894379
SG6 3HS 1 w502894423
SG6 3HT 1 w502894413
SG6 3HU 1 w502894451
SG6 3HW 1 w136038001
SG6 3JD 1 w502894400
SG6 3JE 1 w502894457
SG6 3JZ 2 Barrington␣Road w494420466
SG6 3NE 1 w494420480
SG6 3NX 1 w135858657
SG6 3NZ 1 w37881081
SG6 3PA 1 w404541803
SG6 3PF 1 w135858880
SG6 3PJ 2 Broadway r7256365
SG6 3PN 1 w93413566
SG6 3PW 1 w93413568
SG6 3SB 1 w135997359
SG6 3TA 1 w673004304
SG6 3TB 1 w494420481
SG6 3TP 1 w502894398
SG6 3TR 2 w135862022
SG6 3TR 2 w502894461
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.