Purpose: This study evaluated the availability and accessibility of agricultural extension services under the Single Spine System, with a specific focus on smallholder crop farmers in Buhweju District. Methodology: The study adopted a mixed-methods approach, employing both quantitative and qualitative data collection techniques. Structured questionnaires were administered to a sample of 393 smallholder crop farmers and key informant interviews with district agricultural officers and extension workers provided in-depth insights into the delivery of services. Findings: The results indicate that education was positively and significantly (P<0.01) associated with knowledge about the availability of extension services. Farmers with more years of schooling had a greater likelihood of being aware of extension providers.