Welwyn Garden City postcodes

There are 2610 postcodes in this built up area

Key Active postcodeActive postcode Postcode no longer in usePostcode no longer in use

This table shows the first postcodes in the built up area, download the CSV file to get all the postcodes.

Postcode Latitude Longitude Easting Northing Grid reference Active?
AL6 0AD51.819954-0.190971524784215028TL247150Yes
AL6 0AE51.821857-0.191374524751215239TL247152Yes
AL6 0AF51.832637-0.178431525613216460TL256164No
AL6 0AG51.821913-0.190327524823215247TL248152Yes
AL6 0AH51.82455-0.18816524965215544TL249155Yes
AL6 0AJ51.824965-0.184719525201215596TL252155Yes
AL6 0AL51.82721-0.184513525209215846TL252158Yes
AL6 0AN51.827139-0.182876525322215841TL253158Yes
AL6 0AP51.828786-0.185886525110216019TL251160Yes
AL6 0AQ51.825378-0.188171524962215636TL249156Yes
AL6 0AR51.828251-0.189042524894215954TL248159Yes
AL6 0AS51.826202-0.190285524814215724TL248157Yes
AL6 0AT51.825428-0.190258524818215638TL248156Yes
AL6 0AU51.823119-0.19096524776215380TL247153Yes
AL6 0AW51.827842-0.185285525154215915TL251159Yes
AL6 0AX51.822814-0.191596524733215345TL247153Yes
AL6 0AY51.832637-0.178431525613216460TL256164No
AL6 0AZ51.828734-0.188447524934216009TL249160Yes
AL6 0BA51.8205-0.191994524712215087TL247150Yes
AL6 0BB51.820958-0.192556524672215137TL246151Yes
AL6 0BD51.832637-0.178431525613216460TL256164No
AL6 0BE51.826534-0.18737525014215766TL250157Yes
AL6 0BF51.83154-0.179636525533216336TL255163No
AL6 0BG51.83154-0.179636525533216336TL255163No
AL6 0BH51.817786-0.188606524953214791TL249147Yes
AL6 0BP51.832637-0.178431525613216460TL256164No
AL6 0BQ51.826438-0.186387525082215757TL250157Yes
AL6 0BS51.823136-0.205722523759215357TL237153Yes
AL6 0BT51.832637-0.178431525613216460TL256164No
AL6 0BU51.817618-0.189459524895214771TL248147Yes
AL6 0BX51.818394-0.189689524877214857TL248148Yes
AL6 0BY51.818905-0.190621524811214912TL248149Yes
AL6 0DA51.820105-0.192131524704215043TL247150Yes
AL6 0DB51.821068-0.195613524461215144TL244151Yes
AL6 0DD51.824389-0.192883524640215518TL246155Yes
AL6 0DE51.822728-0.198333524269215324TL242153Yes
AL6 0DF51.822019-0.197244524346215247TL243152Yes
AL6 0DG51.822442-0.195471524467215297TL244152Yes
AL6 0DH51.824214-0.196097524419215493TL244154Yes
AL6 0DJ51.82365-0.195713524447215431TL244154Yes
AL6 0DL51.826084-0.193192524614215706TL246157Yes
AL6 0DN51.825717-0.193831524571215664TL245156Yes
AL6 0DP51.804482-0.195898524487213299TL244132No
AL6 0DQ51.824037-0.196916524363215472TL243154Yes
AL6 0DR51.823655-0.194233524549215434TL245154Yes
AL6 0DS51.823788-0.194735524514215448TL245154Yes
AL6 0DT51.821498-0.19563524459215192TL244151Yes
AL6 0DU51.822875-0.195613524456215345TL244153Yes
AL6 0DW51.824646-0.194353524538215544TL245155Yes
AL6 0DX51.823301-0.19415524556215395TL245153Yes
AL6 0DY51.823701-0.193186524621215441TL246154Yes
AL6 0DZ51.822006-0.194052524566215251TL245152Yes
AL6 0EA51.824365-0.192492524667215516TL246155Yes
AL6 0EB51.822948-0.198571524252215348TL242153Yes
AL6 0ED51.832637-0.178431525613216460TL256164No
AL6 0EE51.822101-0.195514524465215259TL244152Yes
AL6 0EF51.843481-0.203006523890217624TL238176Yes
AL6 0EG51.822197-0.19239524680215275TL246152Yes
AL6 0EH51.829993-0.182606525333216159TL253161Yes
AL6 0EJ51.828827-0.183824525252216027TL252160Yes
AL6 0EL51.827908-0.181393525422215929TL254159Yes
AL6 0EN51.826804-0.179203525576215810TL255158Yes
AL6 0EP51.830281-0.179629525537216196TL255161Yes
AL6 0EQ51.845772-0.196368524341217890TL243178Yes
AL6 0ER51.832515-0.177062525708216449TL257164Yes
AL6 0ES51.831178-0.174252525905216305TL259163Yes
AL6 0ET51.832717-0.173203525973216478TL259164Yes
AL6 0EU51.833534-0.177146525699216562TL256165Yes
AL6 0EW51.828779-0.176777525738216034TL257160Yes
AL6 0EX51.804482-0.195898524487213299TL244132No
AL6 0EY51.833593-0.172282526034216577TL260165Yes
AL6 0EZ51.834028-0.17074526139216628TL261166Yes
AL6 0FA51.804482-0.195898524487213299TL244132No
AL6 0FB51.804482-0.195898524487213299TL244132No
AL6 0FE51.819931-0.190682524804215026TL248150Yes
AL6 0FL51.833602-0.168338526306216585TL263165Yes
AL6 0GD51.84204-0.1946524473217478TL244174Yes
AL6 0GY51.804482-0.195898524487213299TL244132No
AL6 0HA51.833835-0.168865526269216610TL262166Yes
AL6 0HD51.842601-0.194854524454217540TL244175Yes
AL6 0HE51.831912-0.167125526394216399TL263163Yes
AL6 0HF51.831792-0.164605526568216390TL265163Yes
AL6 0HG51.831154-0.166434526444216316TL264163Yes
AL6 0HH51.830094-0.165283526526216200TL265161Yes
AL6 0HJ51.830255-0.161779526767216224TL267162Yes
AL6 0HL51.827489-0.165433526523215910TL265159Yes
AL6 0HN51.828993-0.167331526388216074TL263160Yes
AL6 0HP51.828879-0.164592526577216066TL265160Yes
AL6 0HQ51.830671-0.164215526598216266TL265162Yes
AL6 0HR51.804482-0.195898524487213299TL244132No
AL6 0HS51.83154-0.179636525533216336TL255163No
AL6 0HU51.841768-0.196208524363217445TL243174Yes
AL6 0HW51.831133-0.167897526343216311TL263163Yes
AL6 0JA51.804482-0.195898524487213299TL244132No
AL6 0JH51.83154-0.179636525533216336TL255163No
AL6 0LT51.8352-0.149676527587216795TL275167Yes
AL6 0NA51.832841-0.168452526300216500TL262164No
AL6 0NB51.832841-0.168452526300216500TL262164No
AL6 0ND51.804482-0.195898524487213299TL244132No
AL6 0NE51.83154-0.179636525533216336TL255163No
AL6 0NF51.832637-0.178431525613216460TL256164No
AL6 0NG51.840259-0.200449524075217270TL240172Yes
AL6 0NH51.833753-0.164641526560216608TL265166Yes
AL6 0NJ51.836421-0.160425526843216912TL268169Yes
AL6 0NL51.836171-0.157706527031216889TL270168Yes
AL6 0NN51.835668-0.156565527111216835TL271168Yes
AL6 0NP51.83425-0.159062526943216673TL269166Yes
AL6 0NQ51.833177-0.168032526328216538TL263165Yes
AL6 0NR51.832845-0.160019526881216515TL268165Yes
AL6 0NS51.832553-0.158637526977216485TL269164Yes
AL6 0NT51.830931-0.161272526800216300TL268162No
AL6 0NU51.832-0.161809526760216418TL267164Yes
AL6 0NW51.834383-0.158331526993216689TL269166Yes
AL6 0NX51.831849-0.160742526834216403TL268164Yes
AL6 0NY51.831826-0.157579527052216406TL270164Yes
AL6 0NZ51.831729-0.156509527126216397TL271163Yes
AL6 0PA51.829068-0.160013526892216095TL268160Yes
AL6 0PB51.829624-0.161659526777216154TL267161Yes
AL6 0PD51.828685-0.161988526757216049TL267160Yes
AL6 0PE51.834249-0.168206526313216657TL263166Yes
AL6 0PF51.832637-0.178431525613216460TL256164No
AL6 0PG51.843762-0.200329524074217660TL240176Yes
AL6 0PH51.841993-0.195067524441217472TL244174Yes
AL6 0PJ51.841362-0.200216524088217393TL240173Yes
AL6 0PL51.83829-0.202778523920217047TL239170Yes
AL6 0PN51.839504-0.202343523947217183TL239171Yes
AL6 0PP51.842803-0.203919523829217547TL238175Yes
AL6 0PQ51.844294-0.1998524109217720TL241177Yes
AL6 0PR51.841913-0.201603523991217452TL239174Yes
AL6 0PS51.840031-0.199065524171217247TL241172Yes
AL6 0PT51.841318-0.1991524165217390TL241173Yes
AL6 0PU51.841582-0.198785524186217420TL241174Yes
AL6 0PW51.842155-0.204482523792217474TL237174Yes
AL6 0PX51.841356-0.197473524277217397TL242173Yes
AL6 0PY51.843351-0.196827524316217620TL243176Yes
AL6 0PZ51.844721-0.19879524177217769TL241177Yes
AL6 0QA51.845561-0.199047524157217862TL241178Yes
AL6 0QB51.845087-0.193927524511217818TL245178Yes
AL6 0QD51.845141-0.195681524390217821TL243178Yes
AL6 0QE51.84589-0.194679524457217906TL244179Yes
AL6 0QF51.845872-0.194113524496217905TL244179Yes
AL6 0QG51.843477-0.19389524518217639TL245176Yes
AL6 0QH51.84383-0.196416524343217674TL243176Yes
AL6 0QJ51.843758-0.195229524425217668TL244176Yes
AL6 0QL51.842754-0.199551524130217549TL241175Yes
AL6 0QN51.842745-0.197766524253217551TL242175Yes
AL6 0QP51.843571-0.199475524133217640TL241176Yes
AL6 0QQ51.844551-0.195371524413217756TL244177Yes
AL6 0QR51.841377-0.201798523979217392TL239173Yes
AL6 0QS51.84115-0.194607524475217379TL244173Yes
AL6 0QT51.841242-0.193558524547217391TL245173Yes
AL6 0QU51.839856-0.192931524594217238TL245172Yes
AL6 0QW51.843475-0.198448524204217631TL242176Yes
AL6 0QX51.838385-0.192003524662217076TL246170Yes
AL6 0QY51.843432-0.197448524273217628TL242176Yes
AL6 0QZ51.840109-0.191344524703217269TL247172Yes
AL6 0RA51.83968-0.190834524739217222TL247172Yes
AL6 0RB51.839094-0.19016524787217158TL247171Yes
AL6 0RD51.841211-0.190409524764217393TL247173Yes
AL6 0RE51.841649-0.192018524652217439TL246174Yes
AL6 0RF51.840865-0.190104524786217355TL247173Yes
AL6 0RG51.842558-0.189809524802217544TL248175Yes
AL6 0RH51.841712-0.18916524849217451TL248174Yes
AL6 0RJ51.84211-0.190997524721217492TL247174Yes
AL6 0RL51.841163-0.189598524820217389TL248173Yes
AL6 0RN51.839501-0.187996524935217207TL249172Yes
AL6 0RP51.841218-0.186872525008217400TL250173Yes
AL6 0RQ51.842071-0.190322524768217489TL247174Yes
AL6 0RR51.840936-0.187706524951217367TL249173Yes
AL6 0RS51.840502-0.185255525121217323TL251173Yes
AL6 0RT51.804482-0.195898524487213299TL244132No
AL6 0RU51.840656-0.18416525196217342TL251173Yes
AL6 0RW51.839543-0.18602525071217215TL250172Yes
AL6 0RX51.841734-0.184654525159217461TL251174Yes
AL6 0RY51.84193-0.185154525124217482TL251174Yes
AL6 0RZ51.841743-0.187069524993217458TL249174Yes
AL6 0SA51.842098-0.187403524969217497TL249174Yes
AL6 0SB51.842286-0.187826524939217517TL249175Yes
AL6 0SD51.842498-0.184609525160217546TL251175Yes
AL6 0SE51.842098-0.183904525210217503TL252175Yes
AL6 0SF51.842434-0.183392525244217541TL252175Yes
AL6 0SG51.843229-0.185973525064217625TL250176Yes
AL6 0SH51.841981-0.192527524616217475TL246174Yes
AL6 0SJ51.840409-0.186783525016217310TL250173Yes
AL6 0SL51.840547-0.192802524601217315TL246173Yes
AL6 0SN51.817245-0.192023524719214725TL247147Yes
AL6 0SP51.818535-0.19171524737214869TL247148Yes
AL6 0SQ51.842297-0.191469524688217512TL246175Yes
AL6 0SR51.818136-0.190884524795214826TL247148Yes
AL6 0SS51.840261-0.202307523947217267TL239172Yes
AL6 0SU51.83154-0.179636525533216336TL255163No
AL6 0SW51.818485-0.192631524674214862TL246148Yes
AL6 0SX51.846445-0.185205525108217984TL251179Yes
AL6 0SY51.833337-0.167923526335216556TL263165Yes
AL6 0TA51.842117-0.194365524489217487TL244174Yes
AL6 0TB51.843309-0.191288524698217625TL246176Yes
AL6 0TD51.843245-0.192244524632217616TL246176Yes
AL6 0TE51.845285-0.192298524623217843TL246178Yes
AL6 0TF51.845087-0.191575524673217822TL246178Yes
AL6 0TH51.845589-0.190916524717217879TL247178Yes