The implementation of devolved government system in Kenya has enabled most citizens to receive efficient and better services. This is facilitated by supportive leadership style such as democratic styles which enables different actors to participate in decision making and implementation of service delivery. The study objective was to find out how leadership Style influences implementation of service delivery in County government. The null hypothesis stated that there is no significant relationship between leadership Style and implementation of service delivery in County government. This study adopted descriptive study design. The study made use of stratified sampling. Stratified is where the researcher divides a study area in portion and then he/she picks few individuals for study. The sample size comprises of 110 respondents. The researcher used descriptive statistics including frequency distribution tables, percentages. In addition to this, inferential statistical techniques were considered such as Pearson correlations and multiple regression analysis. They were used to establish relationships among variables. A detailed description of the data and the findings were presented in tables. The study found that county government has a policy on leadership style. It was also found that workers were not free to make most decisions without consulting their seniors, meaning decisions are made by their seniors. The study recommended that the County government should embrace participative leadership which may encourage implementation of service delivery in County governments and that county government employees should be allowed to air their grievances to the top county managers, avoid authoritative leadership in County government. JEL: G18, G28, H11