Methodology

Introduction

DatiItalia collects data from official Italian and European sources. This page explains our sources, processing procedures and methodological choices.

Data Sources

• ISTAT — Italian National Institute of Statistics. Permanent Population Census 2025. Data on resident population, births, deaths, migration balance, gender distribution.
• MEF — Ministry of Economy and Finance. Tax Statistics 2023. Average and median income per municipality, distribution by income brackets, number of taxpayers.
• ISPRA — Institute for Environmental Protection and Research. Land Consumption Report 2024. Consumed area and consumption percentage per municipality.
• EEA — European Environment Agency. Air quality data 2022. Annual average concentrations of PM2.5, PM10, NO2 and Ozone.

Data Processing

Raw data is automatically downloaded from official sources, normalized and stored in a PostgreSQL database. The update process runs weekly through automated scripts.

Quality of Life Index

The quality of life index is a composite index calculated as a weighted average of five dimensions: Income (30%), Environment (25%), Services (20%), Demographics (15%), Safety (10%). Each dimension is normalized on a 0-100 scale.

Limitations

The data has some limitations: not all municipalities have complete data for every indicator; environmental data is only available for monitored cities; updates have different frequencies depending on the source.