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  1. Home
  2. Campania
  3. Avellino
  4. Trevico

Trevico is a small municipality in the province of Avellino, Campania region. With a population of 789 inhabitants and a density of 72 per km², it covers an area of 11.0 km². The average declared income is 18.449 €.

CampaniaAvellino

Trevico

ISTAT Code: 064112

41.0481°N, 15.2329°E

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789
Inhabitants
72
Inhabitants/km²
18.449 €
Average Income
15.53 µg/m³
PM2.5
8,1%
Land Consumption
11.0 km²
Area

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Population Trend

Male/Female Ratio

789Totale
Men
Women

Demographic Statistics

Men385
Women404
Year2026

Demographic Indices

-2.23%
Annual change
change from the previous year
397
Ageing index
65+ / 0-14 × 100
73
Dependency ratio
(0-14 + 65+) / 15-64 × 100
239.3
Workforce replacement
60-64 / 15-19 × 100
157.6
Workforce structure
40-64 / 15-39 × 100
7.7
Child dependency
0-4 / women 15-49 × 100
52.16
Average age
weighted average age

Births (recent years)

Historical Population (1951-present)

Marital Status (2025)

1614Totale
Single
Married
Divorced
Widowed

School-Age Population (2026)

Total 0-18 years: 90

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
6
Foreign-resident share: 0.74%
Main citizenships
Romania3
Croazia1
Finlandia1
Marocco1

Municipalities in the same province

Aiello del Sabato

Avellino, Campania

Altavilla Irpina

Avellino, Campania

Andretta

Avellino, Campania

Aquilonia

Avellino, Campania

Ariano Irpino

Avellino, Campania

Municipalities in the same region

Acerno

Salerno, Campania

Acerra

Napoli, Campania

Afragola

Napoli, Campania

Agerola

Napoli, Campania

Agropoli

Salerno, Campania

Aiello del Sabato

Avellino, Campania

Municipalities with similar population

Fragneto l'Abate

940 · Benevento, Campania

Cannalonga

936 · Salerno, Campania

Zungoli

935 · Avellino, Campania

Alfano

931 · Salerno, Campania

Villamaina

892 · Avellino, Campania

San Gregorio Matese

870 · Caserta, Campania

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