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OSM Postcode Mapping for AL3 5 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 %
AL3 5 232 232 220 94.8%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
AL3 5AB 10 0
AL3 5AD 10 1
AL3 5AE 10 Heath Farm Lane 2
AL3 5AG 10 2015‑10 0
AL3 5AH 10 Harpenden Road 1
AL3 5AJ 10 1
AL3 5AL 10 1
AL3 5AN 10 1
AL3 5AP 10 1
AL3 5AS 10 Beech Road 2
AL3 5AT 10 1
AL3 5AU 10 1
AL3 5AW 10 1
AL3 5AX 10 1
AL3 5AY 10 2
AL3 5AZ 10 1
AL3 5BA 10 1
AL3 5BE 10 1
AL3 5BG 10 Adalaide Street 2
AL3 5BH 10 Adelaide Street 3
AL3 5BJ 10 Catherine Street 3
AL3 5BN 10 1
AL3 5BP 10 1
AL3 5BT 10 Catherine Street 3
AL3 5BU 10 Catherine Street 2
AL3 5BX 10 Catherine Street 3
AL3 5BY 10 1
AL3 5BZ 10 1
AL3 5DA 10 2017‑01 0
AL3 5DD 10 1
AL3 5DG 10 Market Place 10
AL3 5DJ 10 2018‑01 Market Place 0
AL3 5DL 10 Market Place 6
AL3 5DP 10 Market Place 6
AL3 5DQ 10 Christopher Place 19
AL3 5DR 10 Market Place 5
AL3 5DU 10 French Row 8
AL3 5DW 10 1
AL3 5DZ 10 2013‑07 French Row 1
AL3 5EA 10 Upper Dagnall Street 1
AL3 5EB 10 0
AL3 5ED 10 1
AL3 5EE 10 1
AL3 5EG 10 1
AL3 5EH 10 Spencer Street 3
AL3 5EJ 10 1
AL3 5EL 10 1
AL3 5EN 10 1
AL3 5EP 10 Stapley Road 1
AL3 5ER 10 1
AL3 5ES 10 1
AL3 5EU 10 2
AL3 5EW 10 1
AL3 5EX 10 0
AL3 5FA 10 0
AL3 5FB 10 0
AL3 5FD 10 0
AL3 5FE 10 0
AL3 5FF 10 0
AL3 5HB 10 1
AL3 5HE 10 1
AL3 5HJ 10 1
AL3 5HL 10 1
AL3 5HN 10 1
AL3 5HP 10 Watson Avenue 2
AL3 5HR 10 1
AL3 5HS 10 1
AL3 5HT 10 1
AL3 5HU 10 1
AL3 5HW 10 1
AL3 5HX 10 1
AL3 5HY 10 1
AL3 5JA 10 Waverley Road 1
AL3 5JB 10 1
AL3 5JD 10 1
AL3 5JE 10 1
AL3 5JF 10 1
AL3 5JG 10 1
AL3 5JH 10 1
AL3 5JJ 10 2
AL3 5JL 10 1
AL3 5JN 10 1
AL3 5JP 10 1
AL3 5JQ 10 1
AL3 5JR 10 1
AL3 5JS 10 1
AL3 5JT 10 3
AL3 5JU 10 1
AL3 5JW 10 1
AL3 5JX 10 1
AL3 5JY 10 1
AL3 5JZ 10 1
AL3 5LA 10 1
AL3 5LB 10 1
AL3 5LD 10 1
AL3 5LE 10 1
AL3 5LF 10 1
AL3 5LG 10 1
AL3 5LH 10 Goldsmith Way 2
AL3 5LJ 10 1
AL3 5LL 10 1
AL3 5LN 10 1
AL3 5LP 10 1
AL3 5LQ 10 1
AL3 5LR 10 1
AL3 5LS 10 1
AL3 5LT 10 1
AL3 5LU 10 Carlisle Avenue 2
AL3 5LW 10 0
AL3 5LX 10 1
AL3 5LY 10 1
AL3 5LZ 10 2
AL3 5NA 10 1
AL3 5NB 10 1
AL3 5ND 10 1
AL3 5NE 10 1
AL3 5NF 10 1
AL3 5NG 10 1
AL3 5NH 10 1
AL3 5NJ 10 1
AL3 5NL 10 2
AL3 5NN 10 1
AL3 5NP 10 Normandy Road 1
AL3 5NQ 10 1
AL3 5NR 10 1
AL3 5NS 10 1
AL3 5NT 10 1
AL3 5NU 10 1
AL3 5NW 10 1
AL3 5NX 10 1
AL3 5NZ 10 1
AL3 5PA 10 1
AL3 5PB 10 1
AL3 5PD 10 1
AL3 5PE 10 Waverley Road 2
AL3 5PH 10 1
AL3 5PJ 10 1
AL3 5PL 10 1
AL3 5PN 10 Waverley Road 1
AL3 5PP 10 1
AL3 5PQ 10 1
AL3 5PR 10 1
AL3 5PS 10 1
AL3 5PT 10 1
AL3 5PU 10 1
AL3 5PW 10 1
AL3 5PX 10 1
AL3 5PY 10 1
AL3 5PZ 10 1
AL3 5QA 10 1
AL3 5QB 10 1
AL3 5QD 10 1
AL3 5QE 10 1
AL3 5QF 10 1
AL3 5QG 10 1
AL3 5QH 10 1
AL3 5QJ 10 1
AL3 5QL 10 1
AL3 5QN 10 1
AL3 5QP 10 1
AL3 5QQ 10 1
AL3 5QR 10 2013‑07 0
AL3 5QS 10 1
AL3 5QT 10 1
AL3 5QU 10 1
AL3 5QW 10 1
AL3 5QX 10 1
AL3 5QY 10 1
AL3 5RA 10 1
AL3 5RB 10 1
AL3 5RD 10 1
AL3 5RE 10 1
AL3 5RF 10 1
AL3 5RG 10 1
AL3 5RH 10 1
AL3 5RJ 10 1
AL3 5RL 10 Townsend Drive 2
AL3 5RN 10 1
AL3 5RP 10 Townsend Drive 3
AL3 5RQ 10 1
AL3 5RR 10 1
AL3 5RS 10 1
AL3 5RT 10 1
AL3 5RU 10 1
AL3 5RW 10 1
AL3 5RX 10 1
AL3 5RY 10 1
AL3 5RZ 10 1
AL3 5SA 10 1
AL3 5SB 10 1
AL3 5SD 10 1
AL3 5SE 10 1
AL3 5SF 10 1
AL3 5SG 10 1
AL3 5SH 10 1
AL3 5SQ 10 0
AL3 5SS 10 1
AL3 5ST 10 2013‑07 0
AL3 5SU 10 1
AL3 5SW 10 0
AL3 5SX 10 1
AL3 5SY 10 1
AL3 5SZ 10 1
AL3 5TA 10 1
AL3 5TB 10 1
AL3 5TD 10 1
AL3 5TE 10 1
AL3 5TF 10 1
AL3 5TG 10 1
AL3 5TH 10 1
AL3 5TJ 10 1
AL3 5TL 10 Waverley Road 1
AL3 5TN 10 1
AL3 5TP 10 1
AL3 5TQ 10 1
AL3 5TR 10 1
AL3 5TS 10 1
AL3 5TT 10 1
AL3 5TU 10 1
AL3 5TW 10 1
AL3 5TX 10 1
AL3 5TY 10 1
AL3 5TZ 10 1
AL3 5UA 10 1
AL3 5UB 10 1
AL3 5UD 10 1
AL3 5UE 10 1
AL3 5UF 10 1
AL3 5UH 10 1
AL3 5UJ 10 1
AL3 5UL 10 1
AL3 5UN 10 1
AL3 5UP 10 1
AL3 5UQ 10 1
AL3 5US 10 0
AL3 5UT 10 1
AL3 5UW 10 1
AL3 5XA 10 Batchwood Drive 2
AL3 5YF 10 2015‑10 0
AL3 5ZZ 10 2019‑01 135 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
AL3 5AD 1 w169690473
AL3 5AE 2 Heath␣Farm␣Lane w169691637
AL3 5AE 2 Heath␣Farm␣Lane w25789858 Heath␣Farm␣Lane
AL3 5AJ 1 w171827282
AL3 5AL 1 w171830490
AL3 5AN 1 w189873056
AL3 5AP 1 w327178993
AL3 5AS 2 Beech␣Road w189151251
AL3 5AT 1 w327179005
AL3 5AU 1 w327179014
AL3 5AW 1 w327178979
AL3 5AX 1 w202886048
AL3 5AY 2 w8142994
AL3 5AY 2 w169700792
AL3 5AZ 1 w678106161
AL3 5BA 1 w164346301
AL3 5BE 1 w678106165
AL3 5BG 2 Adalaide␣Street w164344684
AL3 5BJ 3 Catherine␣Street w164344677
AL3 5BN 1 w164346298
AL3 5BP 1 w167860367
AL3 5BT 3 Catherine␣Street w167856413
AL3 5BU 2 Catherine␣Street w164478362
AL3 5BX 3 Catherine␣Street n2128225362 Catherine␣Street,␣Marshalswick
AL3 5BX 3 Catherine␣Street w164342216
AL3 5BY 1 w678106163
AL3 5BZ 1 w164344678
AL3 5DD 1 w164346311
AL3 5DQ 19 Christopher␣Place w163985255
AL3 5DW 1 w172800515
AL3 5ED 1 w164111056
AL3 5EE 1 w164111061
AL3 5EG 1 w166250936
AL3 5EH 3 Spencer␣Street n1777120601
AL3 5EH 3 Spencer␣Street w166123105
AL3 5EJ 1 w166374876
AL3 5EL 1 w164495720
AL3 5EN 1 w166375497
AL3 5ER 1 w166375930
AL3 5ES 1 w164495711
AL3 5EU 2 w166250939
AL3 5EU 2 n1777120696
AL3 5EW 1 w166378574
AL3 5HB 1 w164495718
AL3 5HE 1 w168044798
AL3 5HJ 1 w189521662
AL3 5HL 1 w171825138
AL3 5HN 1 w171826405
AL3 5HP 2 Watson␣Avenue w189523402
AL3 5HR 1 w189871006
AL3 5HS 1 w327179065
AL3 5HT 1 w189868502
AL3 5HU 1 w171823227
AL3 5HW 1 w189833628
AL3 5HX 1 w171820656
AL3 5HY 1 w184223970
AL3 5JB 1 w166378589
AL3 5JD 1 w166378577
AL3 5JE 1 w167356817
AL3 5JF 1 r2217503
AL3 5JG 1 w166852341
AL3 5JH 1 w166977578
AL3 5JJ 2 n1783680413
AL3 5JJ 2 w166977569
AL3 5JL 1 w167357445
AL3 5JN 1 w167357464
AL3 5JP 1 w167357448
AL3 5JQ 1 w166977590
AL3 5JR 1 w167795777
AL3 5JS 1 w167795781
AL3 5JT 3 n1791983915
AL3 5JT 3 n1791991736
AL3 5JT 3 w167851816
AL3 5JU 1 w167356830
AL3 5JW 1 w167356838
AL3 5JX 1 w167795767
AL3 5JY 1 w167610307
AL3 5JZ 1 w164480764
AL3 5LA 1 w172758880
AL3 5LB 1 w167610323
AL3 5LD 1 w172761027
AL3 5LE 1 w167589791
AL3 5LF 1 w167589790
AL3 5LG 1 w167581746
AL3 5LH 2 Goldsmith␣Way w167581778
AL3 5LH 2 Goldsmith␣Way w69232044 Goldsmith␣Way
AL3 5LJ 1 w172757280
AL3 5LL 1 w172758857
AL3 5LN 1 w167581740
AL3 5LP 1 w171981452
AL3 5LQ 1 w171981443
AL3 5LR 1 w164487694
AL3 5LS 1 w164487671
AL3 5LT 1 w172761043
AL3 5LU 2 Carlisle␣Avenue w172926655
AL3 5LX 1 w172800521
AL3 5LY 1 w172781191
AL3 5LZ 2 n1836510596
AL3 5LZ 2 w172799789
AL3 5NA 1 w167866270
AL3 5NB 1 w172780228
AL3 5ND 1 w168044782
AL3 5NE 1 w167864268
AL3 5NF 1 w168044796
AL3 5NG 1 w167864266
AL3 5NH 1 w167581765
AL3 5NJ 1 w166375925
AL3 5NL 2 w34379343
AL3 5NL 2 r2193498
AL3 5NN 1 w166378584
AL3 5NQ 1 w167864269
AL3 5NR 1 w167356841
AL3 5NS 1 w166378570
AL3 5NT 1 w166234179
AL3 5NU 1 w167356831
AL3 5NW 1 w167356845
AL3 5NX 1 w164349081
AL3 5NZ 1 w167581756
AL3 5PA 1 w173272279
AL3 5PB 1 w173152196
AL3 5PD 1 w172930292
AL3 5PE 2 Waverley␣Road w167609136
AL3 5PH 1 w172811338
AL3 5PJ 1 w167603296
AL3 5PL 1 w167581768
AL3 5PP 1 w167610305
AL3 5PQ 1 w167581766
AL3 5PR 1 w167596540
AL3 5PS 1 w167610320
AL3 5PT 1 w167596568
AL3 5PU 1 w167596570
AL3 5PW 1 w167609144
AL3 5PX 1 w167596539
AL3 5PY 1 w167596573
AL3 5PZ 1 w167599547
AL3 5QA 1 w167599565
AL3 5QB 1 w167599537
AL3 5QD 1 w167596571
AL3 5QE 1 w167599575
AL3 5QF 1 w173274133
AL3 5QG 1 w167853235
AL3 5QH 1 w167949602
AL3 5QJ 1 w167949605
AL3 5QL 1 w167949604
AL3 5QN 1 w167866263
AL3 5QP 1 w173274145
AL3 5QQ 1 w167856406
AL3 5QS 1 w167603307
AL3 5QT 1 w173272234
AL3 5QU 1 w167603310
AL3 5QW 1 w167856409
AL3 5QX 1 w34621660
AL3 5QY 1 w173154581
AL3 5RA 1 w173011982
AL3 5RB 1 w173152787
AL3 5RD 1 w172758863
AL3 5RE 1 w172931914
AL3 5RF 1 w173274144
AL3 5RG 1 w173274153
AL3 5RH 1 w173456684
AL3 5RJ 1 w172046271
AL3 5RL 2 Townsend␣Drive w34263278
AL3 5RN 1 w189517643
AL3 5RP 3 Townsend␣Drive w171839066
AL3 5RP 3 Townsend␣Drive w171839068
AL3 5RQ 1 w172256202
AL3 5RR 1 w173925073
AL3 5RS 1 w173819565
AL3 5RT 1 w174458527
AL3 5RU 1 w189517114
AL3 5RW 1 w189517927
AL3 5RX 1 w174458545
AL3 5RY 1 w174461101
AL3 5RZ 1 w189517150
AL3 5SA 1 w185645027
AL3 5SB 1 w185645038
AL3 5SD 1 w171981438
AL3 5SE 1 w171981463
AL3 5SF 1 w173274147
AL3 5SG 1 w172046273
AL3 5SH 1 w172757277
AL3 5SS 1 w173442915
AL3 5SU 1 w173456453
AL3 5SX 1 w173442905
AL3 5SY 1 w173445417
AL3 5SZ 1 w173445426
AL3 5TA 1 w173442928
AL3 5TB 1 w173456410
AL3 5TD 1 w173456408
AL3 5TE 1 w173456406
AL3 5TF 1 w173456456
AL3 5TG 1 w173456452
AL3 5TH 1 w174463672
AL3 5TJ 1 w174484021
AL3 5TN 1 w175016422
AL3 5TP 1 w175703854
AL3 5TQ 1 w173819525
AL3 5TR 1 w174465756
AL3 5TS 1 w174465765
AL3 5TT 1 w175703687
AL3 5TU 1 w174465762
AL3 5TW 1 w175375058
AL3 5TX 1 w175704335
AL3 5TY 1 w175376532
AL3 5TZ 1 w166868690
AL3 5UA 1 w175704775
AL3 5UB 1 w166976082
AL3 5UD 1 w166868717
AL3 5UE 1 w166976490
AL3 5UF 1 w175705530
AL3 5UH 1 w166979005
AL3 5UJ 1 w166978993
AL3 5UL 1 w166979003
AL3 5UN 1 w167236519
AL3 5UP 1 w167236526
AL3 5UQ 1 w168044785
AL3 5UT 1 w166385272
AL3 5UW 1 w167236510
AL3 5XA 2 Batchwood␣Drive w34315882 St␣Albans
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.