| Town Name | District | Unitary Authority | County | Population | Area Size (Ha) | |
|---|---|---|---|---|---|---|
| Lenton | South Kesteven | - | Lincolnshire | 168 | - | Map |
| Lenwade | Broadland | - | Norfolk | - | - | Map |
| Leominster | - | Herefordshire, County of | Herefordshire | 9435 | 252 | Map |
| Lepe | New Forest | - | Hampshire | - | - | Map |
| Lerrin | Caradon | - | Cornwall | - | - | Map |
| Les Creux | Jersey | - | Channel Islands | - | - | Map |
| Les Nicolles | Guernsey | - | Channel Islands | - | - | Map |
| Lesbury | Alnwick | - | Northumberland | 871 | - | Map |
| Lessingham | North Norfolk | - | Norfolk | 467 | - | Map |
| Letchworth | North Hertfordshire | - | Hertfordshire | 31039 | 945 | Map |
| Letcombe | Vale of White Horse | - | Oxfordshire | 170 | - | Map |
| Letcombe Regis | Vale of White Horse | - | Oxfordshire | 548 | - | Map |
| Letheringsett | North Norfolk | - | Norfolk | 225 | - | Map |
| Letton | - | Herefordshire, County of | Herefordshire | 174 | - | Map |
| Leven | - | East Riding of Yorkshire | Yorkshire | 2002 | 50 | Map |
| Levens | South Lakeland | - | Cumbria | 1007 | - | Map |
| Levenshulme | Manchester | - | Lancashire | - | - | Map |
| Leverington | South Holland | - | Lincolnshire | 2914 | - | Map |
| Leverstock Green | Dacorum | - | Hertfordshire | - | - | Map |
| Leverton | Boston | - | Lincolnshire | 668 | - | Map |
| Levington | Suffolk Coastal | - | Suffolk | 253 | - | Map |
| Levisham | Ryedale | - | Yorkshire | 85 | - | Map |
| Lewannick | North Cornwall | - | Cornwall | 884 | - | Map |
| Lewes | Lewes | - | Sussex | 15408 | 353 | Map |
| Lewisham | Lewisham | - | Greater London | 216069 | 3488 | Map |
| Lewknor | South Oxfordshire | - | Oxfordshire | 665 | - | Map |
| Lewsey | - | Luton | Bedfordshire | - | - | Map |
| Lewtrenchard | West Devon | - | Devon | 172 | - | Map |
| Lexden | Colchester | - | Essex | - | - | Map |
| Lexham | Breckland | - | Norfolk | 157 | - | Map |
| Leyburn | Richmondshire | - | Yorkshire | 1703 | 61 | Map |
| Leyland | South Ribble | - | Lancashire | 36712 | 899 | Map |
| Leysdown | Swale | - | Kent | 2470 | 132 | Map |
| Leyton | Waltham Forest | - | Greater London | - | - | Map |
| Lezant | North Cornwall | - | Cornwall | 751 | - | Map |
| Lezayre | - | - | Isle of Man | - | - | Map |
| Lichfield | Lichfield | - | Staffordshire | 28141 | 782 | Map |
| Lickey | Bromsgrove | - | Worcestershire | 2764 | - | Map |
| Liddington | - | Swindon | Wiltshire | - | - | Map |
| Liddington | - | Rutland | Rutland | - | - | Map |
| Lidford | West Devon | - | Devon | 394 | - | Map |
| Lidgate | St. Edmundsbury | - | Suffolk | 191 | - | Map |
| Lidlington | Mid Bedfordshire | - | Bedfordshire | 1145 | - | Map |
| Lifton | West Devon | - | Devon | 976 | - | Map |
| Lightcliffe | Calderdale | - | Yorkshire | - | - | Map |
| Lighthorne | Stratford-on-Avon | - | Warwickshire | 1225 | - | Map |
| Lilbourne | Daventry | - | Northamptonshire | 363 | - | Map |
| Lilburn | Berwick-upon-Tweed | - | Northumberland | 106 | - | Map |
| Lilleshall | - | Telford and Wrekin | Shropshire | 13174 | - | Map |
| Lilley | North Hertfordshire | - | Hertfordshire | 374 | - | Map |