Deiva Marina is a small municipality in the province of La Spezia, Liguria region. With a population of 1276 inhabitants and a density of 91 per km², it covers an area of 14.1 km². The average declared income is 23.269 €.
Deiva Marina in numbers: the analysis
Among the 32 municipalities of the province of La Spezia, Deiva Marina ranks 19 by population.
Compared with the provincial average of La Spezia (about 6,704 residents per municipality), Deiva Marina is a markedly smaller centre.
Demographic projections to 2050 estimate about 1,060 inhabitants for Deiva Marina: an expected decline of 16.9% from today.
The ageing index is one of the starkest signals: in Deiva Marina there are 384 residents over 65 for every 100 under 14, well above the national average.
The census record tells a story of long decline: in 1951 Deiva Marina had 1,449 inhabitants; today (2026) it has 1,276 — 11.9% fewer.
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Population & demographics
All demographic data for Deiva Marina: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Deiva Marina.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Deiva Marina.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1347 |
| 2020 | 1364 |
| 2021 | 1338 |
| 2022 | 1292 |
| 2023 | 1277 |
| 2024 | 1288 |
| 2025 | 1291 |
| 2026 | 1276 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 608 | 47.6% |
| Women | 668 | 52.4% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 7 |
| 2025 | 6 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1449 |
| 1961 | 1481 |
| 1971 | 1600 |
| 1981 | 1588 |
| 1991 | 1546 |
| 2001 | 1463 |
| 2011 | 1438 |
| 2019 | 1347 |
| 2020 | 1364 |
| 2021 | 1338 |
| 2022 | 1292 |
| 2023 | 1277 |
| 2024 | 1288 |
| 2025 | 1291 |
| 2026 | 1276 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1040 | 40.3% |
| Married | 1138 | 44.1% |
| Divorced | 124 | 4.8% |
| Widowed | 280 | 10.8% |
School-Age Population (2026)
Total 0-18 years: 153
| Valore | |
|---|---|
| Nido (0-2) | 19 |
| Infanzia (3-5) | 19 |
| Primaria (6-10) | 37 |
| Medie (11-13) | 24 |
| Superiori (14-18) | 54 |
Foreign residents
Foreign presence and top citizenships