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  1. Home
  2. Lombardia
  3. Sondrio
  4. Cosio Valtellino

Cosio Valtellino is a medium-sized municipality in the province of Sondrio, Lombardia region. With a population of 5586 inhabitants and a density of 233 per km², it covers an area of 24.0 km². The average declared income is 25.017 €.

LombardiaSondrio

Cosio Valtellino

ISTAT Code: 014024

46.1304°N, 9.5499°E

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5.6k
Inhabitants
233
Inhabitants/km²
25.017 €
Average Income
13.79 µg/m³
PM2.5
9,8%
Land Consumption
24.0 km²
Area

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Population Trend

Male/Female Ratio

5586Totale
Men
Women

Demographic Statistics

Men2832
Women2754
Year2026

Demographic Indices

+0.49%
Annual change
change from the previous year
214.4
Ageing index
65+ / 0-14 × 100
59.2
Dependency ratio
(0-14 + 65+) / 15-64 × 100
160.1
Workforce replacement
60-64 / 15-19 × 100
135.3
Workforce structure
40-64 / 15-39 × 100
20
Child dependency
0-4 / women 15-49 × 100
46.5
Average age
weighted average age

Births (recent years)

Historical Population (1951-present)

Marital Status (2025)

11.118Totale
Single
Married
Divorced
Widowed

School-Age Population (2026)

Total 0-18 years: 890

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
384
Foreign-resident share: 6.91%
Main citizenships
Marocco103
Romania63
Albania16
Bangladesh16
Senegal16

Municipalities in the same province

Albaredo per San Marco

Sondrio, Lombardia

Albosaggia

Sondrio, Lombardia

Andalo Valtellino

Sondrio, Lombardia

Aprica

Sondrio, Lombardia

Ardenno

Sondrio, Lombardia

Municipalities in the same region

Abbadia Cerreto

Lodi, Lombardia

Abbadia Lariana

Lecco, Lombardia

Abbiategrasso

Milano, Lombardia

Acquafredda

Brescia, Lombardia

Acquanegra Cremonese

Cremona, Lombardia

Acquanegra sul Chiese

Mantova, Lombardia

Municipalities with similar population

Ponteranica

6.701 · Bergamo, Lombardia

Pozzo d'Adda

6.688 · Milano, Lombardia

San Benedetto Po

6.683 · Mantova, Lombardia

Bolgare

6.680 · Bergamo, Lombardia

Cava Manara

6.677 · Pavia, Lombardia

Siziano

6.674 · Pavia, Lombardia

Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025