BT tops the ranking, with 49,943 postcodes, ahead of B and S. The full ranking is below, each entry linked to its page.

# Area Postcodes
1 BT 49,943
2 B 41,842
3 S 34,116
4 NE 33,591
5 G 32,168
6 M 32,146
7 NG 29,391
8 PE 27,228
9 BS 27,211
10 EH 24,928
11 PO 24,324
12 NR 23,969
13 RG 23,594
14 CF 23,394
15 SA 23,298
16 TN 22,996
17 LE 22,985
18 EX 22,622
19 GU 22,486
20 BN 22,294
21 DN 22,040
22 LS 21,917
23 IP 21,509
24 GL 21,433
25 CV 20,881
26 L 20,673
27 SE 20,656
28 OX 20,287
29 LL 20,258
30 SW 20,043
31 YO 19,033
32 CH 19,025
33 W 18,653
34 SO 18,490
35 CM 18,295
36 WA 18,288
37 PL 17,836
38 ST 17,781
39 DE 17,709
40 TS 17,700
41 N 17,429
42 AB 17,288
43 BD 17,169
44 ME 16,871
45 E 16,837
46 NN 16,749
47 SK 16,600
48 RH 16,255
49 MK 15,909
50 BA 15,450
51 BH 15,267
52 CT 15,073
53 SN 14,621
54 WF 14,612
55 SY 14,576
56 KT 14,281
57 HP 14,096
58 NW 14,070
59 NP 13,856
60 CO 13,554

Source: Royal Mail postcode data. Compiled by Postcodes UK.

Frequently asked questions

Which UK postcode area has the most postcodes?

BT tops the list, with 49,943 postcodes, followed by B and S.

How is this ranking measured?

This ranking is based on Royal Mail postcode data.