Oldest postal codes

The 20 postal code areas in Rauma with the highest average age, and the 20 with the lowest, out of 45 with a published figure.

	Area	Municipality	Postal code	Average age
1	Köyliö	Rauma	27750	55.0
2	Eurajoki	Rauma	27170	53.0
3	Säkylä	Rauma	27920	53.0
4	Honkilahti	Rauma	27650	52.0
5	Peränkylä	Rauma	29180	52.0
6	Säkylä	Rauma	27800	51.0
7	Tuiskula	Rauma	27730	51.0
8	Kiukainen	Rauma	27400	50.0
9	Köyliö	Rauma	27710	50.0
10	Köyliö	Rauma	27840	50.0
11	Lappi	Rauma	27220	50.0
12	Lappi	Rauma	27260	50.0
13	Säkylä	Rauma	27820	50.0
14	Eura	Rauma	27510	49.0
15	Harola	Rauma	27450	49.0
16	Köyliö	Rauma	27860	49.0
17	Hinnerjoki	Rauma	27600	48.0
18	Panelia	Rauma	27430	48.0
19	Panelia As	Rauma	27420	48.0
20	Eurajoki	Rauma	27100	47.0

Youngest postal codes

	Area	Municipality	Postal code	Average age
1	Kaaro	Rauma	26410	41.0
2	Eurajoki	Rauma	27110	43.0
3	Monnanummi	Rauma	26720	43.0
4	Säkylä	Rauma	27910	43.0
5	Eurajoki	Rauma	27150	44.0
6	Honkilahti Kk	Rauma	27640	45.0
7	Kauttua	Rauma	27500	45.0
8	Rauma	Rauma	26200	45.0
9	Unaja	Rauma	26910	45.0
10	Vasarainen	Rauma	26740	45.0
11	Voitoinen	Rauma	27740	45.0
12	Kodisjoki	Rauma	27310	46.0
13	Lappi	Rauma	27250	46.0
14	Mannila	Rauma	27670	46.0
15	Rauma	Rauma	26510	46.0
16	Vermuntila	Rauma	26930	46.0
17	Eurajoki	Rauma	27100	47.0
18	Eurajoki	Rauma	27130	47.0
19	Kolla	Rauma	26560	47.0
20	Kortela	Rauma	26840	47.0

Oldest 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.