Explore related data
Jump from local statistics to linked rankings and territorial pages.
Region page
Open the full profile page for Marche.
Province page
Open the full profile page for the province of Ancona.
Income overview
Explore the income map and the municipalities with the highest and lowest values.
Regional income ranking
View the municipalities in Marche ranked by average income.
Provincial population ranking
View the municipalities in the province of Ancona ranked by population.
Compare this municipality
Open the comparison page with this municipality preselected.
Population & demographics
All demographic data for Serra San Quirico: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Serra San Quirico.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Serra San Quirico.
Serra San Quirico is a small municipality in the province of Ancona, Marche region. With a population of 2469 inhabitants and a density of 51 per km², it covers an area of 48.8 km². The average declared income is 21.964 €.
Serra San Quirico in numbers: the analysis
The ageing index is one of the starkest signals: in Serra San Quirico there are 322 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 1,732 inhabitants for Serra San Quirico: an expected decline of 29.9% from today.
Compared with the provincial average of Ancona (about 9,822 residents per municipality), Serra San Quirico is a markedly smaller centre.
Among the 47 municipalities of the province of Ancona, Serra San Quirico ranks 34 by population.
The census record tells a story of long decline: in 1951 Serra San Quirico had 5,299 inhabitants; today (2026) it has 2,469 — 53.4% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2738 |
| 2020 | 2660 |
| 2021 | 2596 |
| 2022 | 2552 |
| 2023 | 2537 |
| 2024 | 2548 |
| 2025 | 2503 |
| 2026 | 2469 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1202 | 48.7% |
| Women | 1267 | 51.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 11 |
| 2024 | 14 |
| 2025 | 9 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 5299 |
| 1961 | 4424 |
| 1971 | 3556 |
| 1981 | 3173 |
| 1991 | 3041 |
| 2001 | 3016 |
| 2011 | 2967 |
| 2019 | 2738 |
| 2020 | 2660 |
| 2021 | 2596 |
| 2022 | 2552 |
| 2023 | 2537 |
| 2024 | 2548 |
| 2025 | 2503 |
| 2026 | 2469 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 2032 | 40.6% |
| Married | 2348 | 46.9% |
| Divorced | 148 | 3.0% |
| Widowed | 478 | 9.5% |
School-Age Population (2026)
Total 0-18 years: 321
| Valore | |
|---|---|
| Nido (0-2) | 34 |
| Infanzia (3-5) | 41 |
| Primaria (6-10) | 76 |
| Medie (11-13) | 60 |
| Superiori (14-18) | 110 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Serra San Quirico population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/serra-san-quirico-042047" title="Population pyramid of Serra San Quirico — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/serra-san-quirico-042047" alt="Population pyramid of Serra San Quirico — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>