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Population & demographics
All demographic data for Sant'Arsenio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Sant'Arsenio.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Sant'Arsenio.
Sant'Arsenio is a small municipality in the province of Salerno, Campania region. With a population of 2639 inhabitants and a density of 135 per km², it covers an area of 19.6 km². The average declared income is 19.834 €.
Sant'Arsenio in numbers: the analysis
Compared with the provincial average of Salerno (about 6,666 residents per municipality), Sant'Arsenio is a markedly smaller centre.
Among the 158 municipalities of the province of Salerno, Sant'Arsenio ranks 66 by population.
The census record tells a story of long decline: in 1951 Sant'Arsenio had 3,461 inhabitants; today (2026) it has 2,639 — 23.8% fewer.
The generational balance is in line with the norm: the ageing index of Sant'Arsenio is 215 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 2,208 inhabitants for Sant'Arsenio: an expected decline of 16.3% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2780 |
| 2020 | 2744 |
| 2021 | 2713 |
| 2022 | 2685 |
| 2023 | 2667 |
| 2024 | 2644 |
| 2025 | 2641 |
| 2026 | 2639 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1277 | 48.4% |
| Women | 1362 | 51.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 19 |
| 2022 | 17 |
| 2023 | 9 |
| 2024 | 21 |
| 2025 | 10 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3461 |
| 1961 | 3081 |
| 1971 | 3027 |
| 1981 | 3252 |
| 1991 | 3099 |
| 2001 | 2752 |
| 2011 | 2747 |
| 2019 | 2780 |
| 2020 | 2744 |
| 2021 | 2713 |
| 2022 | 2685 |
| 2023 | 2667 |
| 2024 | 2644 |
| 2025 | 2641 |
| 2026 | 2639 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 2308 | 43.7% |
| Married | 2476 | 46.9% |
| Divorced | 86 | 1.6% |
| Widowed | 412 | 7.8% |
School-Age Population (2026)
Total 0-18 years: 428
| Valore | |
|---|---|
| Nido (0-2) | 41 |
| Infanzia (3-5) | 68 |
| Primaria (6-10) | 102 |
| Medie (11-13) | 82 |
| Superiori (14-18) | 135 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Sant'Arsenio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/sant-arsenio-065129" title="Population pyramid of Sant'Arsenio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/sant-arsenio-065129" alt="Population pyramid of Sant'Arsenio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>