A cross sectional study was conducted to directly observe and supervise Routine Immunization (RI) Sessions in Dutsin-Ma Local Government Area of Katsina State, to also assess the level of awareness about RI in caregivers through exit interviews. The study shows that caregivers in Dutsinma LGA are aware of RI (P<0.05). Traditional leaders, volunteer community Mobilizers and health workers have been identified to be the most effective social Mobilizers for Routine Immunization in the LGA. Community linkages is very effective in Dutsinma LGA as the survey shows that 80% of the HFs supervised do have an evidence of monthly Village development committees minutes of meetings. The impact of traditional leaders, volunteer community Mobilizers and Health workers on social mobilization for routine immunization is very effective. Based on the survey conducted, there is need for a continuous supportive supervision in the LGA as this will improve the quality of routine immunization.