Most populated postal codes

The 20 postal code areas in Rauma with the most residents, and the 20 with the fewest, out of 45 with a published figure.

	Area	Municipality	Postal code	Residents
1	Rauma	Rauma	26100	16,603
2	Rauma	Rauma	26200	5,021
3	Rauma	Rauma	26660	4,643
4	Eura	Rauma	27510	3,923
5	Eurajoki	Rauma	27100	3,353
6	Kauttua	Rauma	27500	3,009
7	Luvia	Rauma	29100	2,925
8	Säkylä	Rauma	27800	2,848
9	Rauma	Rauma	26510	2,467
10	Lappi	Rauma	27230	1,959
11	Kaaro	Rauma	26410	1,495
12	Rauma	Rauma	26820	1,448
13	Eurajoki	Rauma	27150	1,296
14	Kiukainen	Rauma	27400	1,186
15	Panelia	Rauma	27430	1,133
16	Köyliö	Rauma	27710	967
17	Kortela	Rauma	26840	742
18	Hinnerjoki	Rauma	27600	653
19	Säkylä	Rauma	27820	646
20	Kolla	Rauma	26560	622

Least populated postal codes

	Area	Municipality	Postal code	Residents
1	Lappi	Rauma	27250	126
2	Mannila	Rauma	27670	153
3	Voitoinen	Rauma	27740	153
4	Säkylä	Rauma	27910	164
5	Lappi	Rauma	27260	165
6	Tuiskula	Rauma	27730	171
7	Harola	Rauma	27450	184
8	Panelia As	Rauma	27420	232
9	Peränkylä	Rauma	29180	241
10	Säkylä	Rauma	27920	245
11	Honkilahti	Rauma	27650	265
12	Köyliö	Rauma	27750	269
13	Eurajoki	Rauma	27130	274
14	Honkilahti Kk	Rauma	27640	283
15	Köyliö	Rauma	27860	289
16	Monnanummi	Rauma	26720	309
17	Eurajoki	Rauma	27170	331
18	Voiluoto	Rauma	26950	374
19	Köyliö	Rauma	27840	388
20	Kodisjoki	Rauma	27310	476

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.