Most populated postal codes

The 20 postal code areas in Kotka-Hamina with the most residents, and the 20 with the fewest, out of 53 with a published figure.

	Area	Municipality	Postal code	Residents
1	Kotka	Kotka-Hamina	48100	10,203
2	Hamina	Kotka-Hamina	49400	9,518
3	Kotka	Kotka-Hamina	48600	6,845
4	Kotka	Kotka-Hamina	48310	4,313
5	Kotka	Kotka-Hamina	48400	3,898
6	Kotka	Kotka-Hamina	48350	3,102
7	Kotka	Kotka-Hamina	48700	2,265
8	Kotka	Kotka-Hamina	48800	2,082
9	Hamina	Kotka-Hamina	49420	1,875
10	Poitsila	Kotka-Hamina	49410	1,850
11	Siltakylä	Kotka-Hamina	49220	1,718
12	Kotka	Kotka-Hamina	48770	1,657
13	Virolahti	Kotka-Hamina	49900	1,641
14	Kotka	Kotka-Hamina	48200	1,639
15	Kotka	Kotka-Hamina	48720	1,631
16	Kotka	Kotka-Hamina	48410	1,545
17	Kotka	Kotka-Hamina	48230	1,337
18	Kotka	Kotka-Hamina	48910	1,309
19	Kotka	Kotka-Hamina	48220	1,294
20	Neuvoton	Kotka-Hamina	49490	1,263

Least populated postal codes

	Area	Municipality	Postal code	Residents
1	Mäntlahti	Kotka-Hamina	49840	123
2	Kalliokoski	Kotka-Hamina	49750	137
3	Vaalimaa	Kotka-Hamina	49930	138
4	Paijärvi	Kotka-Hamina	49640	154
5	Kotka	Kotka-Hamina	48750	160
6	Ala-Pihlaja	Kotka-Hamina	49960	178
7	Suur-Miehikkälä	Kotka-Hamina	49760	181
8	Salo-Miehikkälä	Kotka-Hamina	49770	203
9	Huruksela	Kotka-Hamina	46930	207
10	Ravijoki	Kotka-Hamina	49980	213
11	Kotka	Kotka-Hamina	48210	223
12	Muurikkala	Kotka-Hamina	49730	239
13	Reitkalli	Kotka-Hamina	49520	250
14	Kotka	Kotka-Hamina	48930	293
15	Purola	Kotka-Hamina	49240	309
16	Vastila	Kotka-Hamina	49290	342
17	Kannusjärvi	Kotka-Hamina	49570	363
18	Metsäkylä	Kotka-Hamina	49540	393
19	Summa	Kotka-Hamina	49480	430
20	Pyhältö	Kotka-Hamina	49660	483

Most populated postal codes — All of Finland

Places with fewer than 100 residents are excluded: a figure drawn from a handful of people carries more uncertainty than the differences being ranked.