Transitioning to a circular economy is essential for addressing the inefficiencies and environmental impacts of traditional agricultural practices that rely on synthetic fertilizers and fossil resources. These conventional methods degrade soil, increase greenhouse gas emissions, and pollute waterways through nutrient runoff. A circular economy enhances sustainability by minimizing waste, optimizing resource use, and recycling nutrients. This study analyzes the adoption of circular economy practices among farms in Southwest Finland and identifies influencing factors. A survey distributed to farmers measured the extent of circular practices and the challenges faced. Cross-tabulations and logistic regression analyses evaluated how farm characteristics and farmer attitudes impact implementation. Results show a slow and variable transition among farms. About 50% of respondents have reduced mineral fertilizer use, although trading in byproducts and especially on-farm energy production from byproducts remains uncommon. Many farmers highlight insufficient policy support. The study concludes that policy interventions, training, and education are essential to accelerate adoption and stresses the importance of tailored, regional decision-making for effective policy development.