1. London & Greater London

Postcode areas covered

All London postal districts plus the outer-London districts:
E, EC, N, NW, SE, SW, W, WC, BR, CR, DA, EN, HA, IG, KT, RM, SM, TW, UB, WD.

Key towns / centres

• Central London (City, Westminster, Soho, Mayfair, Bloomsbury, Holborn, Kensington, Chelsea)

• North London: Islington, Camden, Hampstead, Highgate, Finchley, Barnet, Enfield, Wood Green, Tottenham

• East London: Stratford, Canary Wharf, Bow, Hackney, Walthamstow, Ilford, Romford, Dagenham, Barking

• South-East London: Greenwich, Woolwich, Lewisham, Deptford, Eltham, Bexleyheath, Erith

• South London: Brixton, Clapham, Streatham, Tooting, Balham

• South-West London: Wandsworth, Battersea, Putney, Wimbledon, Kingston upon Thames, Surbiton, Richmond, Twickenham

• West / North-West London: Hammersmith, Fulham, Shepherd’s Bush, Ealing, Acton, Harrow, Wembley, Ruislip, Uxbridge

You can phrase this on your site as “All London and Greater London boroughs and postcode districts.”

2. Essex

Main postcode areas in Essex

• CM – Chelmsford, Harlow, Brentwood, Billericay, Braintree, Maldon, Witham, Epping, Dunmow, Stansted, Ongar, Southminster etc

• CO – Colchester, Clacton-on-Sea, Harwich, Manningtree, Halstead, Sudbury (part)

• SS – Southend-on-Sea, Westcliff-on-Sea, Leigh-on-Sea, Rochford, Rayleigh, Hockley, Wickford

• RM / IG / CB – Romford, Hornchurch, Upminster, Rainham, Aveley, Barking, Loughton, Chigwell, Saffron Walden and surrounding Essex villages (where within Essex).

Key Essex towns covered

Colchester, Chelmsford, Basildon, Southend-on-Sea, Harlow, Brentwood, Billericay, Braintree, Clacton-on-Sea, Grays/Thurrock, Rayleigh, Canvey Island, Maldon, Witham, Epping, Chigwell, Loughton, Saffron Walden, Halstead, Harwich, Frinton-on-Sea, Walton-on-the-Naze and all surrounding villages.

3. Hertfordshire

Main postcode areas

• AL – St Albans, Harpenden, Hatfield, Welwyn, Welwyn Garden City

• WD – Watford, Rickmansworth, Bushey, Radlett, Borehamwood

• SG – Stevenage, Hitchin, Letchworth, Royston, Baldock and surrounding areas

• EN / CM / HP / LU – Cheshunt, Waltham Cross, Broxbourne, Bishop’s Stortford, Tring, Berkhamsted and other border areas within Hertfordshire.

Key Hertfordshire towns covered

Watford, St Albans, Hemel Hempstead, Stevenage, Hatfield, Welwyn Garden City, Hertford, Hitchin, Letchworth, Bishop’s Stortford, Cheshunt, Broxbourne, Potters Bar, Rickmansworth, Tring, Berkhamsted, Borehamwood, Bushey, Radlett, Royston and all surrounding villages.

4. Bedfordshire

Main postcode areas

• LU – Luton, Dunstable, Houghton Regis, Leighton Buzzard (part)

• MK – Bedford, Kempston and many central / north Bedfordshire villages

• SG – Biggleswade, Sandy, Shefford, Arlesey, Stotfold etc (Bedfordshire part)

• Plus a small number of NN and PE districts on the county edge.

Key Bedfordshire towns covered

Bedford, Luton, Dunstable, Leighton Buzzard, Biggleswade, Kempston, Houghton Regis, Flitwick, Sandy, Ampthill, Arlesey, Shefford, Barton-le-Clay and all surrounding villages/settlements.