Wireless sensor network, consists of sensor nodes in capacity of hundred or thousand, which deployed in a particular manner. The goal of these sensor nodes is to capture the environmental data and send it to sink node. Various nodes deployment strategies like square, triangle, hex grid have been proposed. In this paper, minimum numbers of sensor nodes are used to cover the specified geographical area using hex grid deployment. The paper shows that the deployment of nodes in a hex grid manner is the best deployment to cover the maximum area by using the minimum number of nodes.