What is the population of Aosta in 2026?

Aosta has 33.127 inhabitants (2026 data), with a density of 1549 inhabitants per km².

What is the average income in Aosta?

The average declared income in Aosta is 27.734 €, with 27.664 taxpayers.

What is the air quality like in Aosta?

The average annual PM2.5 concentration in Aosta is 12.9 µg/m³. Soil consumption is 29.3%.

What is the ZIP code of Aosta?

The ZIP code of Aosta is 11100.

How many foreign residents live in Aosta?

Aosta is home to 3041 foreign residents, equal to 9.2% of the population. The largest foreign community comes from Romania.

What is the cost of living in Aosta?

In Aosta the average property sale price is around 1715 €/m². The composite cost-of-living index is 36 (base 100 = national average).

Valle d'Aosta/Vallée d'Aoste Valle d'Aosta/Vallée d'Aoste

Aosta

Q: Which province and region is Aosta in?

Aosta is in the province of Valle d'Aosta/Vallée d'Aoste, Valle d'Aosta/Vallée d'Aoste region. The ISTAT code is 007003.

ISTAT Code: 007003

45.7375°N, 7.3201°E

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33.1k

Inhabitants

1549

Inhabitants/km²

27.734 €

Average Income

12.86 µg/m³

PM2.5

29,3%

Land Consumption

21.4 km²

Area

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Region page

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Province page

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Income overview

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Regional income ranking

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Provincial population ranking

View the municipalities in the province of Valle d'Aosta/Vallée d'Aoste ranked by population.

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Population & demographics

All demographic data for Aosta: population, births, deaths, balances and historical trends.

Income & tax data

Average income, median income, income brackets and historical trends for Aosta.

Environment & air quality

Air quality (PM2.5, PM10, NO2) and land consumption data for Aosta.

Aosta is a medium-sized municipality in the province of Valle d'Aosta/Vallée d'Aoste, Valle d'Aosta/Vallée d'Aoste region. With a population of 33.127 inhabitants and a density of 1549 per km², it covers an area of 21.4 km². The average declared income is 27.734 €.

Aosta in numbers: the analysis

The ageing index is one of the starkest signals: in Aosta there are 276 residents over 65 for every 100 under 14, well above the national average.

Aosta has grown substantially since 1951: from 24,215 inhabitants then to 33,127 in 2026, an increase of 36.8%.

Aosta is the most populous municipality in the province of Valle d'Aosta/Vallée d'Aoste, out of 74 in total.

At the regional level it sits near the very top: no. 1 most populous of the 74 municipalities in Valle d'Aosta/Vallée d'Aoste.

The average municipality in the province of Valle d'Aosta/Vallée d'Aoste has about 1,656 residents: Aosta has 20 times as many.

Demographic projections to 2050 estimate about 29,790 inhabitants for Aosta: an expected decline of 10.1% from today.

Population Trend

Grafico a linee
Anno	Popolazione
2019	34.169
2020	33.916
2021	33.523
2022	33.223
2023	33.154
2024	33.098
2025	33.096
2026	33.127

Male/Female Ratio

Grafico a ciambella
	Valore	%
Men	15.694	47.4%
Women	17.433	52.6%

Demographic Statistics

Men15.694

Women17.433

Year2026

Demographic Indices

+0.09%

Annual change

change from the previous year

275.5

Ageing index

65+ / 0-14 × 100

65.4

Dependency ratio

(0-14 + 65+) / 15-64 × 100

157.6

Workforce replacement

60-64 / 15-19 × 100

141.3

Workforce structure

40-64 / 15-39 × 100

15.2

Child dependency

0-4 / women 15-49 × 100

48.6

Average age

weighted average age

Births (recent years)

Grafico a barre
	Valore
2021	174
2022	199
2023	185
2024	165
2025	157

Historical Population (1951-present)

Grafico a linee
Anno	Population
1951	24.215
1961	30.633
1971	36.906
1981	37.194
1991	36.214
2001	34.062
2011	34.102
2019	34.169
2020	33.916
2021	33.523
2022	33.223
2023	33.154
2024	33.098
2025	33.096
2026	33.127

Marital Status (2025)

Grafico a ciambella
	Valore	%
Single	29.212	44.2%
Married	26.492	40.1%
Divorced	4464	6.7%
Widowed	5966	9.0%

School-Age Population (2026)

Total 0-18 years: 4784

Grafico a barre
	Valore
Nido (0-2)	519
Infanzia (3-5)	605
Primaria (6-10)	1180
Medie (11-13)	862
Superiori (14-18)	1618

Foreign residents

Foreign presence and top citizenships

Main citizenships

Foreign residents

3041

Foreign-resident share: 9.19%

Main citizenships

Romania670

Marocco484

Albania291

Cina189

Ucraina174