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

Sondrio is a medium-sized municipality in the province of Sondrio, Lombardia region. With a population of 21.495 inhabitants and a density of 1029 per km², it covers an area of 20.9 km². The average declared income is 28.442 €.

LombardiaSondrio

Sondrio

ISTAT Code: 014061

46.1710°N, 9.8715°E

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21.5k
Inhabitants
1029
Inhabitants/km²
28.442 €
Average Income
13.79 µg/m³
PM2.5
19,7%
Land Consumption
20.9 km²
Area

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Population Trend

Male/Female Ratio

21.495Totale
Men
Women

Demographic Statistics

Men10.222
Women11.273
Year2026

Demographic Indices

+0.77%
Annual change
change from the previous year
262.5
Ageing index
65+ / 0-14 × 100
66.2
Dependency ratio
(0-14 + 65+) / 15-64 × 100
177.2
Workforce replacement
60-64 / 15-19 × 100
135.5
Workforce structure
40-64 / 15-39 × 100
17.3
Child dependency
0-4 / women 15-49 × 100
48.19
Average age
weighted average age

Births (recent years)

Historical Population (1951-present)

Marital Status (2025)

42.648Totale
Single
Married
Divorced
Widowed

School-Age Population (2026)

Total 0-18 years: 3100

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
2392
Foreign-resident share: 11.21%
Main citizenships
Marocco362
Ucraina276
Romania185
Cina153
Nigeria145

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

Seriate

25.566 · Bergamo, Lombardia

Mariano Comense

25.387 · Como, Lombardia

Magenta

24.597 · Milano, Lombardia

Peschiera Borromeo

24.393 · Milano, Lombardia

Seveso

24.023 · Monza e della Brianza, Lombardia

Castiglione delle Stiviere

23.815 · Mantova, Lombardia

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