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Population & demographics
All demographic data for San Martino Sannita: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for San Martino Sannita.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for San Martino Sannita.
San Martino Sannita is a small municipality in the province of Benevento, Campania region. With a population of 1136 inhabitants and a density of 179 per km², it covers an area of 6.3 km². The average declared income is 18.399 €.
San Martino Sannita in numbers: the analysis
The census record tells a story of long decline: in 1951 San Martino Sannita had 1,900 inhabitants; today (2026) it has 1,136 — 40.2% fewer.
The ageing index is one of the starkest signals: in San Martino Sannita there are 255 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 848 inhabitants for San Martino Sannita: an expected decline of 25.4% from today.
Compared with the provincial average of Benevento (about 3,307 residents per municipality), San Martino Sannita is a markedly smaller centre.
Among the 78 municipalities of the province of Benevento, San Martino Sannita ranks 64 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1237 |
| 2020 | 1192 |
| 2021 | 1163 |
| 2022 | 1158 |
| 2023 | 1189 |
| 2024 | 1142 |
| 2025 | 1147 |
| 2026 | 1136 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 565 | 49.7% |
| Women | 571 | 50.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 7 |
| 2022 | 12 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 7 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1900 |
| 1961 | 1703 |
| 1971 | 1195 |
| 1981 | 1084 |
| 1991 | 1199 |
| 2001 | 1180 |
| 2011 | 1277 |
| 2019 | 1237 |
| 2020 | 1192 |
| 2021 | 1163 |
| 2022 | 1158 |
| 2023 | 1189 |
| 2024 | 1142 |
| 2025 | 1147 |
| 2026 | 1136 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 992 | 43.2% |
| Married | 1082 | 47.2% |
| Divorced | 54 | 2.4% |
| Widowed | 166 | 7.2% |
School-Age Population (2026)
Total 0-18 years: 147
| Valore | |
|---|---|
| Nido (0-2) | 21 |
| Infanzia (3-5) | 18 |
| Primaria (6-10) | 35 |
| Medie (11-13) | 26 |
| Superiori (14-18) | 47 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the San Martino Sannita population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/san-martino-sannita-062065" title="Population pyramid of San Martino Sannita — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/san-martino-sannita-062065" alt="Population pyramid of San Martino Sannita — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>