# Lahti

> city in the region of Päijänne Tavastia in Finland

**Wikidata**: [Q28911](https://www.wikidata.org/wiki/Q28911)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Lahti)  
**Source**: https://4ort.xyz/entity/lahti

## Summary
Lahti is a city and municipality located in the region of Päijät-Häme (Päijänne Tavastia) in Finland. Founded in 1905, it serves as the capital of the Päijät-Häme region and had a population of approximately 120,809 as of February 2024. The city is officially bilingual, with Finnish as its primary language, and is recognized for its extensive sports facilities, including the Lahti Sports Center.

## Key Facts
- **Location**: City in the region of Päijänne Tavastia (Päijät-Häme), Finland. Coordinates: 60.9803806°N, 25.654988°E.
- **Population**: 120,809 (as of February 29, 2024); 120,693 (as of December 31, 2023).
- **Area**: 517.63 square kilometres (total as of Jan 2023); 459.5 km² land; 58.13 km² water.
- **Inception**: 1905.
- **Official Name**: Lahden kaupunki (Finnish), Lahtis stad (Swedish).
- **Legal Status**: Municipality of Finland.
- **Elevation**: 122 metres above sea level.
- **Time Zone**: UTC+02:00 (Standard Time), UTC+03:00 (Daylight Saving Time).
- **Climate**: Warm-summer humid continental climate.
- **Current Mayor**: Niko Kyynäräinen (started January 1, 2024).
- **Municipal Code**: 398.
- **Earliest Written Record**: 1445.

## FAQs
**Where is Lahti located and what is its administrative role?**
Lahti is situated in southern Finland within the region of Päijät-Häme, where it serves as the regional capital. It is part of the Lahti sub-region and borders the municipalities of Asikkala, Hollola, Heinola, Iitti, and Orimattila.

**How has Lahti's population changed over recent decades?**
The city has experienced steady growth, increasing from 96,666 residents in 1999 to over 120,000 by early 2024. A significant increase occurred around 2016 when the municipality of Nastola was consolidated into Lahti.

**What are the city's major sports and infrastructure assets?**
The city owns and operates the Lahti Stadium and the Lahti Sports Center, which are central to its identity as a sports hub.

**What international connections does Lahti have?**
Lahti maintains twinning relationships with 13 cities worldwide, including Västerås (Sweden), Ålesund (Norway), and Zaporizhzhia (Ukraine). It is also a member of the Union of the Baltic Cities.

## Why It Matters
Lahti serves as a critical administrative and economic hub in the Päijät-Häme region. Its status as a regional capital underscores its importance in local governance and planning. The city's commitment to sports is evidenced by its ownership of major facilities like the Lahti Sports Center, positioning it as a venue for international events. Historically, its merger with Nastola in 2016 expanded its geographical footprint and population, reflecting its growth as a major urban center in Finland. The city's active participation in international networks, such as the Union of the Baltic Cities, highlights its engagement in cross-border cooperation.

## Notable For
- **Regional Capital**: Serving as the administrative center of Päijät-Häme.
- **Sports Heritage**: Home to the Lahti Sports Center and Lahti Stadium, owned by the city.
- **Municipal Consolidation**: Incorporating the municipality of Nastola effective January 1, 2016.
- **International Twinning**: Maintaining extensive sister-city relations dating back to 1940 (Västerås).
- **Demographic Scale**: Ranking as a major Finnish city with a population exceeding 120,000.

## Body

### Geography and Environment
Lahti is geographically positioned at 60.98°N 25.65°E in the Päijät-Häme region. The city covers a total area of 517.63 square kilometres as of 2023. Of this area, 459.5 km² is land and 58.13 km² is water, reflecting its location near major bodies of water. The elevation is recorded at 122 metres above sea level. The city shares borders with five municipalities: Asikkala, Hollola, Heinola, Iitti, and Orimattila.

### History and Governance
The earliest written record of the area dates back to 1445. Lahti was officially founded as a city in 1905. Administratively, it is classified as a municipality of Finland and is the capital of the Päijät-Häme region.

A significant administrative change occurred on January 1, 2016, when the neighbouring municipality of Nastola was merged into Lahti. The city's legislative body is the Lahti City Council. The head of government (Mayor) position has been held by Niko Kyynäräinen since January 1, 2024. Previously, Jyrki Myllyvirta served as mayor from 2007 to 2018.

### Demographics
Lahti has a population of 120,809 as of February 29, 2024. Population records show a consistent upward trend over the last two decades:
- **1999**: 96,666
- **2009**: 100,854
- **2015**: 118,743
- **2017**: 119,573 (post-merger)
- **2023**: 120,693

The city is designated as a large human settlement and an urban center.

### Culture and Identity
The official languages are Finnish and English (as noted in website qualifiers), though the primary native label is Finnish ("Lahti") and Swedish ("Lahtis"). The city promotes a "Citizens' Initiative" platform available in both Finnish and Swedish. Its coat of arms is a distinct symbol of the municipality. Lahti also has a presence in various international authority files, including the Library of Congress (n50000678) and the National Library of Israel.

### International Relations
Lahti is engaged in international cooperation through the Union of the Baltic Cities. It maintains twinning relationships (sister city status) with 13 cities globally:
- **Europe**: Västerås (Sweden, since 1940), Ålesund (Norway, 1947), Akureyri (Iceland, 1947), Randers (Denmark), Zaporizhzhia (Ukraine, 1953), Pécs (Hungary, 1956), Garmisch-Partenkirchen (Germany, 1987), Suhl (Germany, 1988), Narva (Estonia, 1994), Kaluga (Russia, 1994), Tamsalu (Estonia), Norberg (Sweden).
- **Asia**: Deyang (China, 2000), Wuxi (China, 2011).

### Infrastructure and Facilities
The city owns significant infrastructure, specifically the Lahti Stadium and the Lahti Sports Center, which are featured in the city's imagery. The city operates a comprehensive digital presence, including an official website (lahti.fi), and social media accounts on Twitter (@LahdenKaupunki), Facebook, Instagram, LinkedIn, and TikTok. The city's VAT number is FI01496693, and its Finnish Business ID is 0149669-3.

### Identifiers and Classifications
Lahti is assigned numerous identifiers for administrative and academic purposes:
- **Finnish Municipality Number**: 398
- **Wikidata ID**: Q28911
- **GeoNames ID**: 649374
- **OpenStreetMap Relation ID**: 345901
- **ISNI**: 0000000406324743
- **Viaf ID**: 150062687
The city falls under the Köppen climate classification "Dfb" (warm-summer humid continental climate).

## References

1. [Source](http://www.lahti.fi/www/cms.nsf/pages/675F5FEF606BB959C22570F1005684D5)
2. NLS Geographic Names Register
3. [Source](http://www.stat.fi/meta/luokitukset/kunta/001-2012/luokitusavain_ks.html)
4. The correspondence table between municipalities and language distribution in 2024
5. [Source](https://www.stat.fi/org/avoindata/paikkatietoaineistot/kuntapohjaiset_tilastointialueet.html)
6. [Kaupunkien ja kuntien lukumäärät ja väestötiedot. Association of Finnish Municipalities](https://www.kuntaliitto.fi/tilastot-ja-julkaisut/kaupunkien-ja-kuntien-lukumaarat)
7. [Lahdella 16 ystävyyskaupunkia, 3 Nastolan perua. 2017](https://www.seutuneloset.fi/paikalliset/802295)
8. [Source](https://www.seutuneloset.fi/paikalliset/802295)
9. [Source](https://pecs.hu/testvervarosok-partnervarosok/)
10. Virtual International Authority File
11. [Source](https://ubc.net/cities/)
12. Freebase Data Dumps. 2013
13. MusicBrainz
14. [Source](http://pxnet2.stat.fi/PXWeb/pxweb/en/StatFin/StatFin__vrm__vaerak/statfin_vaerak_pxt_027_en.px/?rxid=49d056e8-910e-4748-be5c-5cd17b90714e)
15. Population structure
16. [Finland's preliminary population figure was 5,608,218 at the end of February 2024. Statistics Finland](https://www.stat.fi/en/publication/clmj0tpyw5zwb0bw6j2adrg4f)
17. [Population growth biggest in nearly 70 years. Statistics Finland](https://stat.fi/en/publication/cln1i2dtgwknt0cut9yem67se)
18. Global LEI Index
19. Area of Finland's municipalities 2023-01-01
20. Aligned ISNI and Ringgold identifiers for institutions
21. [Source](https://www.govdirectory.org/finland/)
22. [archINFORM](https://www.archinform.net/service/wd_aiort.php)
23. [Kuntien ja seutukuntien vuoden 2024 välinen luokitusavain. Statistics Finland](https://www.tilastokeskus.fi/fi/luokitukset/corrmaps/kunta_1_20240101%23seutukunta_1_20240101/)
24. kuntalaisaloite.fi