Registry / Finland / Postal code prefixes / 31 /

Finland postal codes starting with 31

Prefix 31 contains 48 postal code records across 42 mapped localities in Finland.

Verified data profile for Finland prefix 31

Based on 48 records, 48 postal code values and 42 mapped localities. Coordinate coverage is 100.0%.

Records

Postal identifiers

100.0%

Geocoded

31110

Example code

Postal code	Locality	Administrative path	Coordinates
31110	Matku	Kanta-Häme / Forssa / Forssa	60.9675, 23.5446
31130	Koijärvi	Kanta-Häme / Forssa / Forssa	60.9379, 23.6662
31140	Menonen	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.011, 23.4898
31160	Nuutajärvi	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0399, 23.4059
31170	Savijoki	Kanta-Häme / Forssa / Forssa	60.9673, 23.7291
31230	Susikas	Kanta-Häme / Forssa / Tammela	60.9173, 23.8598

Prefix coverage and examples

Use this page to understand country coverage, postal code formats, prefixes and the most useful child pages for lookup or download. The canonical route for this record set is /postal-codes/finland/codes/31.

How to use this lookup

Use the sample rows to verify what the prefix actually covers.
Compare neighboring prefixes when a city or district spans multiple ranges.
Download the country dataset when you need every code in the prefix.

Records

Database rows represented by this canonical route.

Postal identifiers

Distinct postal code values in this route.

Localities

Mapped place names or administrative entries.

Coordinate coverage

100.0%

Rows with latitude and longitude available.

Detected format

5 digits (NNNNN)

The detected records use a fixed-length numeric postal code.

Example

31110

Sample code from Matku.

Prefix use

range lookup

Use this range when you know the first digits or letters but need matching localities.

Code	Place	Hierarchy	Coordinates
31110	Matku	Kanta-Häme / Forssa / Forssa	60.9675, 23.5446
31130	Koijärvi	Kanta-Häme / Forssa / Forssa	60.9379, 23.6662
31140	Menonen	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.011, 23.4898
31160	Nuutajärvi	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0399, 23.4059
31170	Savijoki	Kanta-Häme / Forssa / Forssa	60.9673, 23.7291

Download postal data

CSV, JSON and XLSX exports for research, validation and data products.

Use the API

Query postal codes by country, place name, region or code prefix.

Implementation notes

Field definitions, canonical paths and practical lookup guidance.

Useful related pages

Finland

Country · 3,576 records

All prefixes

Postal code prefixes · 3,576 records

Prefix 82

Postal code range · 53 records

Prefix 25

Postal code range · 52 records

Prefix 15

Postal code range · 50 records

Prefix 04

Postal code range · 49 records

Prefix 44

Postal code range · 47 records

Prefix 20

Postal code range · 46 records

Prefix 71

Postal code range · 45 records

Prefix 63

Postal code range · 44 records

Data questions

What does this postal code prefix cover?

This page lists representative records, localities and nearby ranges for the Finland prefix 31 prefix in Finland.

Is the complete prefix dataset shown here?

The HTML page shows a bounded sample from 48 matching identifiers and points to the country export for complete coverage.

How should I use a prefix page?

Use it to narrow a lookup when you know the first characters of the code, then confirm locality, region and coordinates.

Related prefix ranges in Finland

Compare this range with other active postal code prefixes from the same country-level directory.

53 codes across 48 localities.

52 codes across 46 localities.

50 codes across 8 localities.

49 codes across 25 localities.

47 codes across 38 localities.

46 codes across 4 localities.

45 codes across 43 localities.

44 codes across 40 localities.

Representative postal code examples

This page keeps a bounded sample for fast crawling and links each code to its canonical lookup page. Use the country export when you need the full prefix dataset.

Postal code	Locality	Region	Coordinates
31110	Matku	Kanta-Häme / Forssa / Forssa	60.9675, 23.5446
31130	Koijärvi	Kanta-Häme / Forssa / Forssa	60.9379, 23.6662
31140	Menonen	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.011, 23.4898
31160	Nuutajärvi	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0399, 23.4059
31170	Savijoki	Kanta-Häme / Forssa / Forssa	60.9673, 23.7291
31230	Susikas	Kanta-Häme / Forssa / Tammela	60.9173, 23.8598
31250	Teuro	Kanta-Häme / Forssa / Tammela	60.8759, 23.9586
31300	Tammela	Kanta-Häme / Forssa / Tammela	60.8099, 23.8068
31310	Mustiala	Kanta-Häme / Forssa / Tammela	60.8333, 23.7804
31340	Porras	Kanta-Häme / Forssa / Tammela	60.7552, 23.9073
31350	Liesjärvi	Kanta-Häme / Forssa / Tammela	60.6821, 23.9392
31370	Eerikkilän Urheiluopisto	Kanta-Häme / Forssa / Tammela	60.7253, 23.79
31380	Letku	Kanta-Häme / Forssa / Tammela	60.6928, 23.7439
31400	Somero	Southwest Finland / Salo / Somero	60.6278, 23.5259
31401	Somero	Southwest Finland / Salo / Somero	60.6167, 23.5333
31410	Ylöpirtti	Southwest Finland / Salo / Somero	60.6985, 23.4664
31450	Häntälä	Southwest Finland / Salo / Somero	60.5899, 23.339
31460	Hirsjärvi	Southwest Finland / Salo / Somero	60.5955, 23.6676
31470	Somerniemi	Southwest Finland / Salo / Somero	60.5634, 23.7806
31490	Terttilä	Southwest Finland / Salo / Somero	60.5397, 23.5639
31500	Koski Tl	Southwest Finland / Loimaa / Koski Tl	60.6571, 23.1342
31501	Koski Tl	Southwest Finland / Loimaa / Koski Tl	60.65, 23.15
31520	Pitkäjärvi	Southwest Finland / Salo / Somero	60.6731, 23.2935
31530	Pyöli	Southwest Finland / Salo / Somero	60.6593, 23.3909
31600	Jokioinen	Kanta-Häme / Forssa / Jokioinen	60.8078, 23.4927
31601	Jokioinen	Kanta-Häme / Forssa / Jokioinen	60.8016, 23.48
31610	Vaulammi	Kanta-Häme / Forssa / Jokioinen	60.7838, 23.4239
31620	Latovainio	Kanta-Häme / Forssa / Jokioinen	60.8885, 23.5028
31630	Minkiö	Kanta-Häme / Forssa / Jokioinen	60.8547, 23.432
31640	Humppila	Kanta-Häme / Forssa / Humppila	60.93, 23.365
31641	Humppila	Kanta-Häme / Forssa / Humppila	60.9333, 23.3667
31650	Venäjänkangas	Kanta-Häme / Forssa / Humppila	60.9712, 23.3217
31700	Urjala As	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0393, 23.6778
31720	Urjalankylä	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0841, 23.4235
31730	Honkola	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.1386, 23.4301
31750	Kehro	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.1919, 23.4905
31760	Urjala	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0831, 23.5506
31761	Urjala	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0797, 23.5554
31810	Oriniemi	Pirkanmaa / Lounais-Pirkanmaa / Punkalaidun	61.1596, 23.2011
31830	Halkivaha	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.1963, 23.3174
31850	Koskioinen	Pirkanmaa / Lounais-Pirkanmaa / Punkalaidun	61.0908, 23.2229
31860	Tursa	Pirkanmaa / Etelä-Pirkanmaa / Urjala	61.0826, 23.3165
31900	Punkalaidun	Pirkanmaa / Lounais-Pirkanmaa / Punkalaidun	61.1083, 23.1116
31901	Punkalaidun	Pirkanmaa / Lounais-Pirkanmaa / Punkalaidun	61.1167, 23.1
31930	Vanttila	Pirkanmaa / Lounais-Pirkanmaa / Punkalaidun	61.147, 22.9667
31950	Sadonmaa	Pirkanmaa / Lounais-Pirkanmaa / Punkalaidun	61.04, 23.2142
31960	Orisuo	Southwest Finland / Loimaa / Loimaa	61.0143, 23.1198
31970	Kanteenmaa	Pirkanmaa / Lounais-Pirkanmaa / Punkalaidun	61.052, 23.0005