Progress in open data: The 2025 Open Data Maturity assessment is now available
Latest results show rising performance across governance, portals, data quality and real-world impact across 36 participating countries.
The 2025 Open Data Maturity (ODM) assessment has been published, providing the latest overview of how European countries are advancing in making public sector information more accessible, reusable and impactful. This 11th edition assesses 36 countries, including all 27 EU Member States, three members of the European Free Trade Association and six candidate countries. The ODM continues to serve as an essential reference for tracking progress, identifying emerging trends and supporting peer learning across Europe.
Progress is visible across all four dimensions of the assessment: policy, portal, data quality and impact. Policy remains the strongest dimension, with countries further strengthening long-term governance structures and updating their national strategies more regularly and continuing implementation of the high-value datasets Regulation. National portals also show renewed progress after last year’s dip, with more features to help users find and access datasets, stronger support for data providers and clearer long-term plans for portal sustainability. Improvements in data quality are driven by better metadata practices, wider use of European standards such as DCAT-AP and more complete time series. Meanwhile, the impact dimension continues to grow gradually as more countries develop ways to measure how open data benefits society, environment, and the economy.
Open data remains a cornerstone of Europe’s digital transformation. By making public sector information easier to find, use and trust, countries enable innovation, transparency and better public services. The report highlights practical steps, from multi-stakeholder governance to user-centred portal design, that help strengthen Europe’s open data ecosystem. It also showcases real-world examples of open data driving tangible impact: using health data to improve hospital accreditation processes, reusing geospatial and heritage datasets for smarter urban planning, transforming census data into engaging digital art to explore social trends, providing students with safe AI learning environments, helping farmers reduce fertilizer use and cut greenhouse gas emissions, and powering predictive models that support public health planning and emergency response. The 2025 Open Data Maturity assessment is now available through an interactive digital platform, offering users a hands-on experience with country performance, trends over time, tailored recommendations, and dimension-specific insights.
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