Explore related data
Jump from local statistics to linked rankings and territorial pages.
Region page
Open the full profile page for Puglia.
Province page
Open the full profile page for the province of Lecce.
Income overview
Explore the income map and the municipalities with the highest and lowest values.
Regional income ranking
View the municipalities in Puglia ranked by average income.
Provincial population ranking
View the municipalities in the province of Lecce ranked by population.
Compare this municipality
Open the comparison page with this municipality preselected.
Population & demographics
All demographic data for Seclì: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Seclì.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Seclì.
Seclì is a small municipality in the province of Lecce, Puglia region. With a population of 1784 inhabitants and a density of 203 per km², it covers an area of 8,8 km². The average declared income is 18.057 €.
Seclì in numbers: the analysis
The ageing index is one of the starkest signals: in Seclì there are 293 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 1,581 inhabitants for Seclì: an expected decline of 11.4% from today.
Compared with the provincial average of Lecce (about 7,937 residents per municipality), Seclì is a markedly smaller centre.
Among the 96 municipalities of the province of Lecce, Seclì ranks 88 by population.
Seclì has grown substantially since 1951: from 1,545 inhabitants then to 1,784 in 2026, an increase of 15.5%.
Population Trend
Male/Female Ratio
Demographic Statistics
Demographic Indices
Births (recent years)
Historical Population (1951-present)
Marital Status (2025)
School-Age Population (2026)
Total 0-18 years: 224
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Seclì population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/secli-075074" title="Population pyramid of Seclì — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/secli-075074" alt="Population pyramid of Seclì — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>