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Population & demographics
All demographic data for Castel San Lorenzo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castel San Lorenzo.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castel San Lorenzo.
Castel San Lorenzo is a small municipality in the province of Salerno, Campania region. With a population of 2182 inhabitants and a density of 157 per km², it covers an area of 13.9 km². The average declared income is 15.877 €.
Castel San Lorenzo in numbers: the analysis
Compared with the provincial average of Salerno (about 6,666 residents per municipality), Castel San Lorenzo is a markedly smaller centre.
Among the 158 municipalities of the province of Salerno, Castel San Lorenzo ranks 81 by population.
The census record tells a story of long decline: in 1951 Castel San Lorenzo had 4,603 inhabitants; today (2026) it has 2,182 — 52.6% fewer.
The ageing index is one of the starkest signals: in Castel San Lorenzo there are 292 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 1,742 inhabitants for Castel San Lorenzo: an expected decline of 20.2% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2330 |
| 2020 | 2292 |
| 2021 | 2263 |
| 2022 | 2246 |
| 2023 | 2216 |
| 2024 | 2201 |
| 2025 | 2180 |
| 2026 | 2182 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1077 | 49.4% |
| Women | 1105 | 50.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 15 |
| 2022 | 14 |
| 2023 | 11 |
| 2024 | 17 |
| 2025 | 16 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 4603 |
| 1961 | 4091 |
| 1971 | 3852 |
| 1981 | 3455 |
| 1991 | 3229 |
| 2001 | 3034 |
| 2011 | 2632 |
| 2019 | 2330 |
| 2020 | 2292 |
| 2021 | 2263 |
| 2022 | 2246 |
| 2023 | 2216 |
| 2024 | 2201 |
| 2025 | 2180 |
| 2026 | 2182 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1772 | 40.6% |
| Married | 2104 | 48.3% |
| Divorced | 56 | 1.3% |
| Widowed | 428 | 9.8% |
School-Age Population (2026)
Total 0-18 years: 295
| Valore | |
|---|---|
| Nido (0-2) | 40 |
| Infanzia (3-5) | 38 |
| Primaria (6-10) | 73 |
| Medie (11-13) | 54 |
| Superiori (14-18) | 90 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castel San Lorenzo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castel-san-lorenzo-065035" title="Population pyramid of Castel San Lorenzo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castel-san-lorenzo-065035" alt="Population pyramid of Castel San Lorenzo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>