__TOC__
Is
|- class="vcard" | class="fn org" | Isallt Bach | class="adr" | Isle of Anglesey | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isauld | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isay | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isbister (Whalsay) | class="adr" | Shetland Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isbister (near North Roe, Northmavine) | class="adr" | Shetland Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isbister (East Mainland) | class="adr" | Orkney Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isbister (West Mainland) | class="adr" | Orkney Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isbister Holm | class="adr" | Shetland Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isel | class="adr" | Cumbria | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isfield | class="adr" | East Sussex | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isham | class="adr" | Northamptonshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isington | class="adr" | Hampshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Island Carr | class="adr" | North Lincolnshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Island Davaar | class="adr" | Argyll and Bute | class="note" | | class="note" | |- class="vcard" | class="fn org" | Island Macaskin | class="adr" | Argyll and Bute | class="note" | | class="note" | |- class="vcard" | class="fn org" | Island of Rona | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Island of Stroma | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islands Common | class="adr" | Cambridgeshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islands of Fleet | class="adr" | Dumfries and Galloway | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islay | class="adr" | Argyll and Bute | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle Abbotts | class="adr" | Somerset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle Brewers | class="adr" | Somerset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isleham | class="adr" | Cambridgeshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle Martin | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Arran | class="adr" | North Ayrshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Axholme | class="adr" | North Lincolnshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Bute | class="adr" | Argyll and Bute | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Danna | class="adr" | Argyll and Bute | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Dogs | class="adr" | London Borough of Tower Hamlets | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Ewe | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Grain | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Lewis | class="adr" | Western Isles | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Man | class="adr" | Isle of Man | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Man | class="adr" | Dumfries and Galloway | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of May | class="adr" | Fife | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Mull | class="adr" | Argyll and Bute | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Nibon | class="adr" | Shetland Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Noss | class="adr" | Shetland Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Portland | class="adr" | Dorset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Purbeck | class="adr" | Dorset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Raasay | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Sheppey | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Skye | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Stenness | class="adr" | Shetland Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Thanet | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of West Burrafirth | class="adr" | Shetland Islands | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Whithorn | class="adr" | Dumfries and Galloway | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle of Wight | class="adr" | Isle of Wight | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isleornsay | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isle Ristol | class="adr" | Highland | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isles of Scilly | class="adr" | Isles of Scilly | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islesteps | class="adr" | Dumfries and Galloway | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isleworth | class="adr" | Hounslow | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isley Walton | class="adr" | Leicestershire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isley Woodhouse | class="adr" | Leicestershire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islibhig | class="adr" | Western Isles | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islington | class="adr" | London Borough of Islington | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islington | class="adr" | Shropshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islip | class="adr" | Northamptonshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Islip | class="adr" | Oxfordshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isombridge | class="adr" | Shropshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Istead Rise | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Isycoed | class="adr" | Wrexham | class="note" | | class="note" |
It
|- class="vcard" | class="fn org" | Itchen | class="adr" | City of Southampton | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itchen Abbas | class="adr" | Hampshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itchen Stoke | class="adr" | Hampshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itchingfield | class="adr" | West Sussex | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itchington | class="adr" | South Gloucestershire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itteringham | class="adr" | Norfolk | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itteringham Common | class="adr" | Norfolk | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itton | class="adr" | Monmouthshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Itton Common | class="adr" | Monmouthshire | class="note" | | class="note" |
Iv
|- class="vcard" | class="fn org" | Ivegill | class="adr" | Cumbria | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivelet | class="adr" | North Yorkshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Iver | class="adr" | Buckinghamshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Iver Heath | class="adr" | Buckinghamshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Iverley | class="adr" | Staffordshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Iveston | class="adr" | Durham | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivinghoe | class="adr" | Buckinghamshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivinghoe Aston | class="adr" | Buckinghamshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivington | class="adr" | Herefordshire | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivybridge | class="adr" | Devon | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivy Chimneys | class="adr" | Essex | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivychurch | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivy Cross | class="adr" | Dorset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivy Hatch | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ivy Todd | class="adr" | Norfolk | class="note" | | class="note" |
Iw
|- class="vcard" | class="fn org" | Iwade | class="adr" | Kent | class="note" | | class="note" | |- class="vcard" | class="fn org" | Iwerne Courtney or Shroton | class="adr" | Dorset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Iwerne Minster | class="adr" | Dorset | class="note" | | class="note" | |- class="vcard" | class="fn org" | Iwood | class="adr" | North Somerset | class="note" | | class="note" |
Ix
|- class="vcard" | class="fn org" | Ixworth | class="adr" | Suffolk | class="note" | | class="note" | |- class="vcard" | class="fn org" | Ixworth Thorpe | class="adr" | Suffolk | class="note" | | class="note" | |}