Switzerland · Postal geography

Swiss postcodes, mapped down to the building

Switzerland organises mail delivery and administrative geography around 3,090 postal codes, covering roughly 41,034 km² and a combined population of 8,190,832 people. Every code is a four-digit number grouped into ten prefix zones (0xxx–9xxx), each tracing a distinct band of the country from Geneva to the Engadin. Explore the interactive map, jump straight to a prefix zone, or scan the rankings below.

Explore the map → Browse prefix zones
3,090Total postcodes
8,190,832Population served
1,927,800Buildings mapped
41,034 km²Total area covered
2,651Avg population / postcode
13.3 km²Avg area / postcode
624Avg buildings / postcode
11,433Cities & towns covered
Interactive

Postcodes by first digit

Click a region to see details and navigate. Toggle colour mode to explore population, buildings, area or postcode density.

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Population
Postcodes
Buildings
Area
Avg buildings
Avg population
Code range
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Population
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0xxx - 9xxx

Browse by prefix zone

Each leading digit defines a geographic band of the country - tap a zone to see every postcode inside it.

1xxx
Population1,556,955
Postcodes614
Area7,270 km²
Buildings265,625
 2xxx
Population428,506
Postcodes216
Area2,361 km²
Buildings101,753
 3xxx
Population939,405
Postcodes444
Area8,061 km²
Buildings369,445
 4xxx
Population867,292
Postcodes261
Area1,713 km²
Buildings228,770
 5xxx
Population535,804
Postcodes193
Area1,154 km²
Buildings135,963
 6xxx
Population1,097,477
Postcodes462
Area7,354 km²
Buildings271,032
 7xxx
Population209,419
Postcodes250
Area6,951 km²
Buildings85,846
 8xxx
Population2,083,652
Postcodes463
Area4,368 km²
Buildings339,402
 9xxx
Population472,322
Postcodes187
Area1,804 km²
Buildings129,964
Reference

Prefix zone summary

Key statistics for all ten prefix groups, side by side.

Prefix Postcodes Range Population Area km² Buildings Avg bldgs Avg pop
1xxx 614 1 – 1997 1,556,955 7,270 265,625 433 2536
2xxx 216 2000 – 2954 428,506 2,361 101,753 471 1984
3xxx 444 3000 – 3999 939,405 8,061 369,445 832 2116
4xxx 261 4001 – 4955 867,292 1,713 228,770 877 3323
5xxx 193 5000 – 5746 535,804 1,154 135,963 704 2776
6xxx 462 6000 – 6999 1,097,477 7,354 271,032 587 2375
7xxx 250 7000 – 79807 209,419 6,951 85,846 343 838
8xxx 463 8001 – 8967 2,083,652 4,368 339,402 733 4500
9xxx 187 9000 – 9658 472,322 1,804 129,964 695 2526
Administrative

Cantons & districts

Switzerland's 26 cantons vary widely in how many postal codes they contain, reflecting differences in population density, urban structure and geographic size.

Canton Postcodes Buildings Area km²
Bern/Berne 490 468,312 5938.4
Vaud 338 234,346 3211.9
Zürich 299 384,764 1728.8
Graubünden/Grischun/Grigioni 278 159,531 7105.0
Aargau 257 302,625 1403.7
Ticino 245 214,192 2811.6
St. Gallen 238 207,521 2028.1
Fribourg/Freiburg 186 132,939 1672.4
Valais/Wallis 174 274,952 5223.8
Luzern 145 113,724 1493.5
District Postcodes Buildings
Verwaltungskreis Bern-Mittelland 146 150,676
Distretto di Lugano 95 70,139
District du Jura-Nord vaudois 75 36,940
Verwaltungskreis Emmental 68 52,641
Surselva 64 29,036
District de Morges 58 28,883
Verwaltungskreis Oberaargau 57 42,890
Wahlkreis Toggenburg 52 31,002
Distretto di Locarno 51 43,720
Arrondissement administratif du Jura bernois 50 27,521
Verwaltungskreis Seeland 50 35,242
Bezirk Winterthur 49 55,400
Verwaltungskreis Thun 47 40,235
Bezirk Zürich 45 66,450
Wahlkreis See-Gaster 44 30,965
Rankings

Largest postcodes by building count

The postcodes below contain the highest number of mapped buildings, typically corresponding to dense urban centres.

Code Name Buildings Population Area km²
7000 Chur 6,517 35,320 82.13
4153 Reinach 5,870 20,466 6.97
8400 Winterthur 5,850 21,113 16.26
9000 St. Gallen 5,816 1,557 8.63
4132 Muttenz 5,768 16,009 16.65
3961 Vissoie 5,640 913 243.33
3800 Unterseen 5,231 16,357 55.85
4123 Allschwil 5,126 20,881 8.89
4125 Riehen 5,039 63,940 10.87
4900 Langenthal 4,903 14,578 21.13
4410 Liestal 4,664 10,122 18.18
3400 Burgdorf 4,527 8,782 15.56
2300 La Chaux-de-Fonds 4,487 47,927 55.71
4600 Olten 4,465 10,550 11.49
4133 Pratteln 4,312 18,060 10.7
8610 Uster 4,275 14,531 16.84
4142 Münchenstein 4,065 6,184 7.19
1400 Yverdon-les-Bains 4,038 20,982 28.99
9050 Appenzell 4,012 4,272 46.11
3006 Burgfeld 3,945 9,451 5.28
Rankings

Most populous postcodes

These postcodes serve the largest populations, often covering city centres or densely populated suburban zones.

Code Name Population Buildings Area km²
4125 Riehen 63,940 5,039 10.87
2300 La Chaux-de-Fonds 47,927 4,487 55.71
1292 Chambésy 45,152 975 6.37
8044 Fluntern 40,316 1,573 6.55
7000 Chur 35,320 6,517 82.13
1227 Carouge 33,765 726 3.85
8046 Affoltern 33,413 858 6.76
8041 Leimbach 32,887 177 4.23
1700 Fribourg 32,456 3,220 9.95
8049 Höngg 31,186 432 4.99
8048 Altstetten 30,529 2,528 6.17
1213 Lancy 30,051 398 5.16
4058 Wettstein 29,336 3,784 4.99
8008 Riesbach 28,613 2,734 5.12
8053 Witikon 28,370 1,553 5.74
8302 Kloten 28,081 1,191 19.17
1202 La Servette 27,869 649 4.0
4500 Solothurn 27,743 390 10.09
8050 Oerlikon 27,462 3,060 4.2
2504 Mâche/Mett 26,895 2,267 9.85