| # | Tower | No | Year | Materials | Maker | Trusses | Layout |
|---|
| 4351 | Hutton Cranswick, East Riding of Yorkshire, S Peter | 1 | 1949 | Cast iron | Mears & Stainbank | 8.3.A.h | 6.1 |
| 4352 | Huyton, Merseyside, S Michael | 1 | 1930 | Cast iron | John Taylor & Co | | 6.1 |
| 4353 | Hyde, Greater Manchester, S George | 1 | 1920 | Cast iron | John Taylor & Co | 8.3.C.e | 8.3 |
| 4354 | Hythe, Kent, S Leonard | 9 | | Timber | Locally manufactured | 6.A | 1 |
| 4355 | Hythe, Kent, S Leonard | 2 | 1992 | | Local labour/guild/assn | | |
| 4356 | Hythe, Kent, S Leonard | 1 | 1928 | | Mears & Stainbank | | |
| 4357 | Ibstock, Leicestershire, S Denys | 1 | 1905 | Cast iron | ? John Taylor & Co | 8.3.C.e | 6.4 |
| 4358 | Ickburgh, Norfolk, S Peter | 1 | | | | | 3 D |
| 4359 | Ickford, Buckinghamshire, S Nicholas | 1 | 1907 | Timber | Whites of Appleton | 6.A | 3.1 |
| 4360 | Ickleford, Hertfordshire, S Katharine | 1 | | Timber | | | |
| 4361 | Ickleton, Cambridgeshire, S Mary Magd | 1 | 1927 | Cast iron | Gillett & Johnston | 8.3.A.m | 8.3 |
| 4362 | Ickworth, Suffolk, S Mary | 1 | | Timber | | 5.A | 1 |
| 4363 | Idbury, Oxfordshire, S Nicholas | 9 | | Stone | | | |
| 4364 | Idbury, Oxfordshire, S Nicholas | 1 | c1860 | Composite | Henry Bond | 7.C.c | 3.3 |
| 4365 | Iddesleigh, Devon, S James | 1 | 1904 | Oak | Harry Stokes | 6.B | 6.5 R |
| 4366 | Ide, Devon, S Ida | 2 | 1880 | | Thomas II Hooper/Harry Stokes | | |
| 4367 | Ide, Devon, S Ida | 1 | 1880 | Oak | Thomas II Hooper/Harry Stokes | 6.S | 5.1 |
| 4368 | Ideford, Devon, S Mary V | 1 | 1988 | Steel | Whitechapel Bell Foundry | 8.1.B.c | |
| 4369 | Iden, East Sussex, All Saints | 1 | | Timber | | 6.H | |
| 4370 | Idle, West Yorkshire, Holy Trinity | 2 | 1914 | Cast iron | John Taylor & Co | 8.3.D.a | |
| 4371 | Idle, West Yorkshire, Holy Trinity | 1 | 1914 | Cast iron | John Taylor & Co | 8.3.D.a | |
| 4372 | Iffley, Oxfordshire, S Mary V | 1 | 1911 | Oak | Richard White | | |
| 4373 | Ifield, West Sussex, S Margaret | 1 | 1884 | Timber | ? Gillett & Johnston | 1.D(iii) | 2.X2 |
| 4374 | Iford, East Sussex, S Nicholas | 1 | c1225† | Oak | | 5.D | 3.1 |
| 4375 | Ightham, Kent, S Peter | 1 | | Teak | | | |
| 4376 | Iken, Suffolk, S Botolph | 1 | 1880 | Timber | George Day & Sons | 6.A | 5.1 |
| 4377 | Ilam, Staffordshire, Holy Cross | 1 | 1856 | Oak | | | |
| 4378 | Ilchester, Somerset, S Mary Major | 1 | 1938 | Cast iron | Gillett & Johnston | | 5.11 |
| 4379 | Ilford, Greater London, S Mary | 9 | 1981 | Steel | Locally manufactured | | |
| 4380 | Ilford, Greater London, S Mary | 1 | 1981 | Steel | Locally manufactured | 8.1.F.e | 8.3 |
| 4381 | Ilfracombe, Devon, Holy Trinity | 1 | 1930 | Cast iron | John Taylor & Co | 8.3.C.e | 8.3 |
| 4382 | Ilfracombe, Devon, S Philip & S James | 2 | 1923 | Oak | Llewellins & James | 6.A | |
| 4383 | Ilfracombe, Devon, S Philip & S James | 1 | 1876 | Oak | Llewellins & James | 6.A | 6.1 |
| 4384 | Ilkeston, Derbyshire, S Mary V | 1 | 1910 | Cast iron | John Taylor & Co | 8.3.C.e | 8.3 |
| 4385 | Ilketshall St Andrew, Suffolk, S Andrew | 1 | 1890 | Oak | | 6.A | 4.6 |
| 4386 | Ilketshall St Lawrence, Suffolk, S Lawrence | 1 | c1700 | Oak | | 6.A | 2.X1 |
| 4387 | Ilketshall St Margaret, Suffolk, S Margaret | 1 | c1599 | Oak | | ~ 5.O | 3.3 |
| 4388 | Ilkley, West Yorkshire, All Saints | 1 | 1939 | Cast iron | John Taylor & Co | 8.3.A.h | 8.3 |
| 4389 | Illogan, Cornwall, S Illogan | 2 | 1889 | Oak | William Aggett and Sons | 6.A | 4.3 |
| 4390 | Illogan, Cornwall, S Illogan | 1 | 1889 | Oak | William Aggett and Sons | 6.A | |
| 4391 | Illston on the Hill, Leicestershire, S Michael & All Angels | 2 | 1946 | Cast iron | John Taylor & Co | 8.3.A.h | |
| 4392 | Illston on the Hill, Leicestershire, S Michael & All Angels | 1 | 1932 | Cast iron | John Taylor & Co | 8.3.C.e | 5.1 |
| 4393 | Ilmington, Warwickshire, S Mary | 1 | 1952 | Cast iron | John Taylor & Co | | 8 |
| 4394 | Ilminster, Somerset, Blessed Virgin Mary | 1 | 1902 | Cast iron | John Taylor & Co | 8.3.C.e | 8.3 |
| 4395 | Ilsington, Devon, S Michael | 2 | 1926 | Cast iron | Gillett & Johnston | 8.3.A.m | 1 |
| 4396 | Ilsington, Devon, S Michael | 1 | 1947 | Cast iron | Gillett & Johnston | 8.3.C.e | 5.1 |
| 4397 | Ilton, Somerset, S Peter | 2 | 1962 | Cast iron | John Taylor & Co | | |
| 4398 | Ilton, Somerset, S Peter | 1 | 1962 | Cast iron | John Taylor & Co | | |
| 4399 | Imber, Wiltshire, S Giles | 2 | 2010 | Steel | Matthew Higby & Co | 8.1.B | |
| 4400 | Imber, Wiltshire, S Giles | 1 | c1824 | Timber | | 6.A | 5.1 |