This Demographic Statistics - 2023 edition presents the demographic situation of the resident population in Portugal in 2023: volume and age structure, natural and migratory growth, live births and fertility, mortality and life expectancy, family formation and dissolution (marriages and divorces), international migrations, foreign population residing or staying in Portugal with legal status, and acquisition and attribution of Portuguese citizenship.

Data is published at national level for the period 2015-2023, and disaggregated at the first and second levels of the Nomenclature of Territorial Units for Statistics (NUTS I and NUTS II) for the period 2021 to 2023. Demographic indicators are made available in accordance with the NUTS 2024 version. Long-series of the main demographic indicators are also available, with decennial information for the period from 1900 to 1980 and annually from 1980 to 2023.

The information released on the resident population is part of the Definitive Estimates of Resident Population - 2011/2020 series, revised based on the final results of the 2021 Census, which corrects the previous series of Provisional Estimates of Resident Population - 2011/2020 (2011 Census based), as well as the series of the Provisional Estimates of Resident Population based on the 2021 Census, which begins in 2021.