Abstract: Despite the importance of the agriculture sector to the economy, limited access to agricultural extension information has resulted in poor decisions on agricultural production and related activities thus, affecting achievement of food security. This study through a survey of 397 households sought to examine how availability, access and utilization of agricultural extension services affect smallholder farming household’s food security in Uasin Gishu County, Kenya. Data was collected using questionnaires and interview schedules and analysed using descriptive and inferential statistics.