Most populated postal codes

The 20 postal code areas in Joensuu with the most residents, and the 20 with the fewest, out of 73 with a published figure.

	Area	Municipality	Postal code	Residents
1	Joensuu	Joensuu	80100	10,687
2	Joensuu	Joensuu	80160	9,902
3	Joensuu	Joensuu	80140	8,455
4	Joensuu	Joensuu	80230	6,835
5	Lehmo	Joensuu	80710	6,028
6	Outokumpu	Joensuu	83500	5,586
7	Ylämylly	Joensuu	80400	5,521
8	Joensuu	Joensuu	80260	5,220
9	Joensuu	Joensuu	80200	4,863
10	Joensuu	Joensuu	80220	4,736
11	Joensuu	Joensuu	80110	4,720
12	Joensuu	Joensuu	80170	3,649
13	Joensuu	Joensuu	80130	3,207
14	Ilomantsi	Joensuu	82900	3,170
15	Juuka	Joensuu	83900	3,043
16	Hammaslahti	Joensuu	82200	2,758
17	Kontiolahti	Joensuu	81100	2,667
18	Eno	Joensuu	81200	2,392
19	Liperi	Joensuu	83100	2,341
20	Reijola	Joensuu	80330	2,276

Least populated postal codes

	Area	Municipality	Postal code	Residents
1	Haukivaara	Joensuu	82830	100
2	Hukkala	Joensuu	83830	106
3	Haapalahti	Joensuu	81295	113
4	Marjovaara	Joensuu	82815	113
5	Puromäki	Joensuu	83140	121
6	Martonvaara	Joensuu	83855	126
7	Kokonvaara	Joensuu	83550	129
8	Tokrajärvi	Joensuu	81350	134
9	Tutjunniemi	Joensuu	83160	134
10	Kajoo	Joensuu	83880	146
11	Ahveninen	Joensuu	81260	149
12	Kontioranta	Joensuu	80790	155
13	Sonkaja	Joensuu	82915	157
14	Mönni	Joensuu	81230	159
15	Ahonkylä	Joensuu	83480	162
16	Polvela	Joensuu	83870	162
17	Ruvaslahti	Joensuu	83835	171
18	Keskijärvi	Joensuu	82120	173
19	Kaatamo	Joensuu	83330	186
20	Ukkola	Joensuu	81290	192

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.