Oldest postal codes

The 20 postal code areas in Oulu with the highest average age, and the 20 with the lowest, out of 58 with a published figure.

	Area	Municipality	Postal code	Average age
1	Pahkakoski	Oulu	91260	57.0
2	Hailuoto	Oulu	90480	55.0
3	Tannila	Oulu	91240	55.0
4	Kylmälänkylä	Oulu	91560	49.0
5	Oulu	Oulu	90660	47.0
6	Oulu	Oulu	90550	46.0
7	Oulu	Oulu	90140	45.0
8	Temmes	Oulu	91950	45.0
9	Halosenniemi	Oulu	90860	44.0
10	Oulu	Oulu	90230	44.0
11	Oulu	Oulu	90240	44.0
12	Oulu	Oulu	90500	44.0
13	Oulu	Oulu	90560	44.0
14	Oulu	Oulu	90650	44.0
15	Yli-Ii	Oulu	91200	44.0
16	Ala-Temmes	Oulu	91930	43.0
17	Arkala	Oulu	91310	43.0
18	Oulu	Oulu	90120	43.0
19	Oulu	Oulu	90150	43.0
20	Oulu	Oulu	90510	43.0

Youngest postal codes

	Area	Municipality	Postal code	Average age
1	Oulu	Oulu	90670	30.0
2	Tupos	Oulu	91910	31.0
3	Oulu	Oulu	90570	33.0
4	Oulu	Oulu	90220	34.0
5	Oulu	Oulu	90420	34.0
6	Oulu	Oulu	90540	34.0
7	Jokirinne	Oulu	91410	35.0
8	Kontio	Oulu	90910	35.0
9	Tyrnävä	Oulu	91800	35.0
10	Kempele	Oulu	90450	36.0
11	Liminka	Oulu	91900	36.0
12	Oulu	Oulu	90400	36.0
13	Oulu	Oulu	90520	36.0
14	Oulu	Oulu	90630	37.0
15	Oulunsalo	Oulu	90460	38.0
16	Varjakka	Oulu	90470	38.0
17	Haukipudas	Oulu	90840	39.0
18	Kiiminki	Oulu	90900	39.0
19	Lumijoki	Oulu	91980	39.0
20	Jakkukylä	Oulu	91210	40.0

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.