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  1. Home
  2. Lazio
  3. Viterbo
  4. Oriolo Romano

Oriolo Romano is a small municipality in the province of Viterbo, Lazio region. With a population of 3673 inhabitants and a density of 190 per km², it covers an area of 19.3 km². The average declared income is 22.192 €.

LazioViterbo

Oriolo Romano

ISTAT Code: 056041

42.1585°N, 12.1381°E

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3.7k
Inhabitants
190
Inhabitants/km²
22.192 €
Average Income
13.79 µg/m³
PM2.5
6,3%
Land Consumption
19.3 km²
Area

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Population Trend

Male/Female Ratio

3673Totale
Men
Women

Demographic Statistics

Men1812
Women1861
Year2026

Demographic Indices

-0.62%
Annual change
change from the previous year
257.3
Ageing index
65+ / 0-14 × 100
59.1
Dependency ratio
(0-14 + 65+) / 15-64 × 100
181
Workforce replacement
60-64 / 15-19 × 100
153.9
Workforce structure
40-64 / 15-39 × 100
14.1
Child dependency
0-4 / women 15-49 × 100
47.78
Average age
weighted average age

Births (recent years)

Historical Population (1951-present)

Marital Status (2025)

7392Totale
Single
Married
Divorced
Widowed

School-Age Population (2026)

Total 0-18 years: 507

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
286
Foreign-resident share: 7.74%
Main citizenships
Romania97
Sri Lanka19
India16
Ucraina15
Egitto14

Municipalities in the same province

Acquapendente

Viterbo, Lazio

Arlena di Castro

Viterbo, Lazio

Bagnoregio

Viterbo, Lazio

Barbarano Romano

Viterbo, Lazio

Bassano Romano

Viterbo, Lazio

Municipalities in the same region

Accumoli

Rieti, Lazio

Acquafondata

Frosinone, Lazio

Acquapendente

Viterbo, Lazio

Acuto

Frosinone, Lazio

Affile

Roma, Lazio

Agosta

Roma, Lazio

Municipalities with similar population

Piglio

4.331 · Frosinone, Lazio

Vignanello

4.293 · Viterbo, Lazio

Colonna

4.223 · Roma, Lazio

Borgorose

4.198 · Rieti, Lazio

Canale Monterano

4.174 · Roma, Lazio

Roccagorga

4.139 · Latina, Lazio

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