Towns and cities
Potters Bar (50)Bushey (47)Waltham Cross (47)Borehamwood (46)Radlett (43)Cheshunt (41)Rickmansworth (40)Watford (40)Hatfield (32)Chorleywood (29)Hoddesdon (27)Harpenden (27)St Albans (25)Hertford (24)Hemel Hempstead (24)Ware (22)Welwyn Garden City (22)Berkhamsted (16)Stevenage (13)Sawbridgeworth (12)Hitchin (11)Tring (10)Buntingford (9)Baldock (8)Letchworth (7)Bishop's Stortford (4)