San Martino in Rio: 8246 inhabitants (2026)
ISTAT Code: 035037
44.7327°N, 10.7847°E
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Population & demographics
All demographic data for San Martino in Rio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for San Martino in Rio.
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Air quality (PM2.5, PM10, NO2) and land consumption data for San Martino in Rio.
San Martino in Rio is a medium-sized municipality in the province of Reggio nell'Emilia, Emilia-Romagna region. With a population of 8246 inhabitants and a density of 359 per km², it covers an area of 23.0 km². The average declared income is 27.040 €.
San Martino in Rio in numbers: the analysis
Among the 42 municipalities of the province of Reggio nell'Emilia, San Martino in Rio ranks 21 by population.
San Martino in Rio has grown substantially since 1951: from 5,330 inhabitants then to 8,246 in 2026, an increase of 54.7%.
The generational balance is in line with the norm: the ageing index of San Martino in Rio is 169 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give San Martino in Rio about 8,890 inhabitants, up 7.8% from today.
Compared with the provincial average of Reggio nell'Emilia (about 12,670 residents per municipality), San Martino in Rio is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 8067 |
| 2020 | 8152 |
| 2021 | 8219 |
| 2022 | 8194 |
| 2023 | 8212 |
| 2024 | 8237 |
| 2025 | 8218 |
| 2026 | 8246 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 4101 | 49.7% |
| Women | 4145 | 50.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 61 |
| 2022 | 60 |
| 2023 | 64 |
| 2024 | 55 |
| 2025 | 46 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 5330 |
| 1961 | 5026 |
| 1971 | 5012 |
| 1981 | 5149 |
| 1991 | 5410 |
| 2001 | 6484 |
| 2011 | 7773 |
| 2019 | 8067 |
| 2020 | 8152 |
| 2021 | 8219 |
| 2022 | 8194 |
| 2023 | 8212 |
| 2024 | 8237 |
| 2025 | 8218 |
| 2026 | 8246 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 7578 | 46.1% |
| Married | 7268 | 44.2% |
| Divorced | 568 | 3.5% |
| Widowed | 1022 | 6.2% |
School-Age Population (2026)
Total 0-18 years: 1422
| Valore | |
|---|---|
| Nido (0-2) | 169 |
| Infanzia (3-5) | 206 |
| Primaria (6-10) | 357 |
| Medie (11-13) | 247 |
| Superiori (14-18) | 443 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the San Martino in Rio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/san-martino-in-rio-035037" title="Population pyramid of San Martino in Rio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/san-martino-in-rio-035037" alt="Population pyramid of San Martino in Rio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>