BT tops the ranking, with 80 postcode districts, ahead of B and LL. The full ranking is below, each entry linked to its page.

# Area Districts
1 BT 80
2 B 78
3 LL 67
4 PA 67
5 NE 64
6 EH 57
7 G 55
8 SA 53
9 S 51
10 IV 50
11 L 49
12 M 46
13 PH 43
14 TN 40
15 BS 39
16 CF 39
17 GU 38
18 BN 37
19 CH 37
20 PE 36
21 PL 36
22 NR 36
23 AB 34
24 IP 34
25 PO 34
26 EX 33
27 LS 32
28 DN 32
29 NG 31
30 KA 30
31 YO 30
32 RG 30
33 CA 29
34 SE 29
35 TS 29
36 CM 28
37 SW 28
38 EC 27
39 GL 27
40 BD 27
41 MK 27
42 TR 27
43 OX 26
44 SY 26
45 W 26
46 BH 26
47 LE 26
48 N 25
49 SO 25
50 DE 24
51 KT 24
52 TA 24
53 CV 24
54 HP 24
55 LA 23
56 CT 22
57 ST 22
58 RH 21
59 FK 21
60 ME 21

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

Frequently asked questions

Which UK postcode area has the most districts?

BT tops the list, with 80 postcode districts, followed by B and LL.

How is this ranking measured?

This ranking is based on Royal Mail postcode data.