Municipality · Villach Land · Carinthia

Treffen am Ossiacher See: population and statistics

Treffen am Ossiacher See has a population of 4,493 (2026) across 71.1 km², or 63.2 people per km². It ranks 327 of 2,092 municipalities by population. Its population is growing: +3.1% between 2016 and 2026.

  • 4,493 residents
  • 71.1 km²
  • 63 people/km²
  • 538 m
Location map: Treffen am Ossiacher See

Treffen am Ossiacher See in numbers

Population
4,493
ranked 327 of 2,092 +3.1%
Population density
63people/km²
ranked 1,143 of 1,982
Area
71.1km²
ranked 283 of 2,092
Elevation
538m
ranked 825 of 2,087
Share of people under 15
10.4%
ranked 1,923 of 1,982
Municipal debt per inhabitant
127€
ranked 1,895 of 1,976
Employment rate (aged 15 to 64)
71.3%
ranked 1,845 of 1,981
Share of people aged 15 and over with a university, academy or college qualification as highest qualification
18.1%
ranked 170 of 1,981

Key points

Among the 132 municipalities in Carinthia, Treffen am Ossiacher See ranks No. 24 by population.

Share of people under 15: 10.4% in Treffen am Ossiacher See, compared with an average of 12.9% in Carinthia and 14.2% nationally.

Municipal debt per inhabitant: 127 € in Treffen am Ossiacher See, compared with an average of 1,043 € in Carinthia and 1,719 € nationally.

Largest business sector: Accommodation and food services, with 19.6% of the area's trade licences.

A 1 kWp solar panel tilted at 39° generates about 1,234 kWh a year here.

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Population of Treffen am Ossiacher See over time

4,3204,4334,5454,6582016: 4,3592017: 4,3932018: 4,4552019: 4,4552020: 4,4622021: 4,5342022: 4,6162023: 4,6192024: 4,6012025: 4,5632026: 4,493201620182020202220242026

Treffen am Ossiacher See had 4,359 residents in 2016 and 4,493 in 2026.

YearPopulation
20214,534
20224,616
20234,619
20244,601
20254,563
20264,493

All indicators for Treffen am Ossiacher See

Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.

Population

IndicatorTreffen am Ossiacher SeeCarinthiaNationalPositionRank
Share of people under 15 (2026)10.4%12.9%14.5%ranked 1,923 of 1,982
Share of people aged 65 and over (2026)30.2%24.7%22.1%ranked 63 of 1,982
Median age (2026)53.8 years–46.2ranked 65 of 1,982
Share of women (2026)51.8%51.1%50.3%ranked 180 of 1,982

Housing

IndicatorTreffen am Ossiacher SeeCarinthiaNationalPositionRank
Private households (2024)1,930262,4594,139,571ranked 321 of 2,091
Average household size (2024)2.18 persons–2.35ranked 1,612 of 1,981

Economy

IndicatorTreffen am Ossiacher SeeCarinthiaNationalPositionRank
Enterprises (2024)40148,327743,940ranked 287 of 2,091
Establishments (2024)47556,049850,266ranked 265 of 2,091
Establishments per 1,000 inhabitants (2024)104.098.391.3ranked 580 of 1,981
Active trade licences (2026)51160,573945,381ranked 303 of 2,088
Trade licences per 1,000 inhabitants (2026)113.7106.398.4ranked 527 of 1,978
Municipal taxes and levies per inhabitant (2019)517 €504 €344 €ranked 503 of 1,976
Municipal debt per inhabitant (2019)127 €1,043 €1,414 €ranked 1,895 of 1,976

Employment

IndicatorTreffen am Ossiacher SeeCarinthiaNationalPositionRank
Employment rate (aged 15 to 64) (2024)71.3%73.3%77.4%ranked 1,845 of 1,981
Unemployment rate (aged 15 and over) (2024)5.0%5.8%3.5%ranked 426 of 1,981
Persons employed in establishments in the municipality (2024)2,067275,4174,878,849ranked 318 of 2,091
Jobs per 100 inhabitants (2024)45.348.432.4ranked 521 of 1,981

Transport

IndicatorTreffen am Ossiacher SeeCarinthiaNationalPositionRank
Share of out-commuters among employed persons by place of residence (2024)73.8%55.8%77.3%ranked 1,275 of 1,981

Society

IndicatorTreffen am Ossiacher SeeCarinthiaNationalPositionRank
Share of foreign nationals (2024)11.7%13.6%8.5%ranked 635 of 1,981
Families (2024)1,231157,9712,490,615ranked 350 of 2,091

Education

IndicatorTreffen am Ossiacher SeeCarinthiaNationalPositionRank
Share of people aged 15 and over with an apprenticeship, BMS, AHS or BHS as highest qualification (2024)62.5%64.7%66.4%ranked 1,608 of 1,981
Share of people aged 15 and over with a university, academy or college qualification as highest qualification (2024)18.1%15.0%11.0%ranked 170 of 1,981

Business sectors: Treffen am Ossiacher See

Share of each sector in total trade licences; “×1.5” means the sector is 1.5 times more common than nationally.

Sunshine and temperatures: Treffen am Ossiacher See

Annual solar output
1,234kWh
for 1 kWp tilted at 39°
Warmest month
18.7°C
July
Coldest month
−2.3°C
January
Most productive month
138kWh
July

Jan: 74 kWhJanFeb: 89 kWhFebMar: 116 kWhMarApr: 120 kWhAprMay: 126 kWhMayJun: 131 kWhJunJul: 138 kWhJulAug: 128 kWhAugSep: 108 kWhSepOct: 87 kWhOctNov: 57 kWhNovDec: 60 kWhDec0 °CJan: −2.3 °CFeb: −0.9 °CMar: 3.0 °CApr: 8.3 °CMay: 12.5 °CJun: 16.9 °CJul: 18.7 °CAug: 17.7 °CSep: 13.7 °COct: 8.9 °CNov: 3.6 °CDec: −1.0 °C
Monthly solar output (kWh per 1 kWp)Average temperature (°C)

Where is Treffen am Ossiacher See?

Frequently asked questions

What is the population of Treffen am Ossiacher See?

Treffen am Ossiacher See has 4,493 residents (2026), ranking 327 of 2,092 municipalities.

How big is Treffen am Ossiacher See?

Treffen am Ossiacher See covers 71.1 km², with a density of 63 people per km².

Is the population of Treffen am Ossiacher See growing?

Between 2016 and 2026, the population of Treffen am Ossiacher See went from 4,359 to 4,493, a change of +3.1%.

Where is Treffen am Ossiacher See?

Treffen am Ossiacher See is in Carinthia. It belongs to Villach Land (district). Latitude 46.668, longitude 13.856.

Share of people under 15: what is the figure for Treffen am Ossiacher See?

In Treffen am Ossiacher See, “Share of people under 15” stands at 10.4% (2026), ranking 1,923 of 1,982 municipalities; the national median is 14.5%.

Municipal debt per inhabitant: what is the figure for Treffen am Ossiacher See?

In Treffen am Ossiacher See, “Municipal debt per inhabitant” stands at 127 € (2019), ranking 1,895 of 1,976 municipalities; the national median is 1,414 €.

How much electricity does a solar panel produce in Treffen am Ossiacher See?

In Treffen am Ossiacher See, a 1 kWp south-facing system tilted at 39° produces about 1,234 kWh a year.

Which municipalities border Treffen am Ossiacher See?

The nearest to Treffen am Ossiacher See are Villach (6.0 km), Arriach (6.9 km), Afritz am See (7.8 km), Wernberg (8.1 km), Ossiach (9.7 km).