Barroway Drove tops the ranking, with -2 m metres above sea level, ahead of Southery and Coveney. The full ranking is below, each entry linked to its page.

# Town County Elevation
1 Barroway Drove Norfolk -2 m
2 Southery Norfolk -2 m
3 Coveney Cambridgeshire -1 m
4 Guyhirn Cambridgeshire -1 m
5 Ramsey Mereside Cambridgeshire -1 m
6 St Olaves Norfolk -1 m
7 Wardy Hill Cambridgeshire -1 m
8 Weymouth Dorset -1 m
9 Abersoch Gwynedd 0 m
10 Althorpe Lincolnshire 0 m
11 Ardrishaig Argyll and Bute 0 m
12 Arrochar Argyll and Bute 0 m
13 Axmouth Devon 0 m
14 Bagillt Flintshire 0 m
15 Beachley Gloucestershire 0 m
16 Beadnell Northumberland 0 m
17 Blue Anchor Somerset 0 m
18 Bo'ness Falkirk 0 m
19 Borth Ceredigion 0 m
20 Brodick North Ayrshire 0 m
21 Burghead Moray 0 m
22 Burringham Lincolnshire 0 m
23 Camber East Sussex 0 m
24 Clevedon Somerset 0 m
25 Connel Argyll and Bute 0 m
26 Corton Suffolk 0 m
27 Coverack Cornwall 0 m
28 Craigmore Argyll and Bute 0 m
29 Cromarty Highland 0 m
30 Cromer Norfolk 0 m
31 Culross Fife 0 m
32 Dawlish Devon 0 m
33 Dinas Dinlle Gwynedd 0 m
34 Dungeness Kent 0 m
35 Dymchurch Kent 0 m
36 Eccles on Sea Norfolk 0 m
37 Eyemouth Scottish Borders 0 m
38 Fairlie North Ayrshire 0 m
39 Ferryside Carmarthenshire 0 m
40 Findochty Moray 0 m
41 Fowey Cornwall 0 m
42 Fraserburgh Aberdeenshire 0 m
43 Geldeston Norfolk 0 m
44 Golspie Highland 0 m
45 Gourdon Aberdeenshire 0 m
46 Gourock Inverclyde 0 m
47 Gravesend Kent 0 m
48 Guardbridge Fife 0 m
49 Gunness Lincolnshire 0 m
50 Harcourt Cornwall 0 m
51 Helford Passage Cornwall 0 m
52 Heybrook Bay Devon 0 m
53 Hopton on Sea Norfolk 0 m
54 Innellan Argyll and Bute 0 m
55 Inverallochy Aberdeenshire 0 m
56 Invergordon Highland 0 m
57 Kames Argyll and Bute 0 m
58 King's Dyke Cambridgeshire 0 m
59 Langbank Renfrewshire 0 m
60 Llansteffan Carmarthenshire 0 m

Source: Ordnance Survey terrain data. Compiled by Postcodes UK.

Frequently asked questions

Which is the lowest town in Britain?

Barroway Drove tops the list, with -2 m metres above sea level, followed by Southery and Coveney.

How is this ranking measured?

This ranking is based on Ordnance Survey terrain data. It covers Britain's recognised built-up areas.