Sensor node deployment is vital in cluster formation. It issensitive for a large area of sensor field. Hence there is a needto divide sensor field into small regions and then formclusters. Regions are characterized by area of sensor network,number of sensor nodes and fair distribution of nodes withineach region. This paper focuses on two types of sensor fieldregion formations, namely, concentric rings and rectangularregion formation. Concentric rings region formation is basedon the distance from sink which is at the center of sensor field.Rectangular regions are formed by continuously partitioningsensor field into equal parts. Both formations are evaluatedfor energy consumption and network lifetime for varioustransmission ranges. Results for energy consumption andnetwork lifetime are compared. The results depict thatclustering within rectangular region is better than concentricrings.