As wireless internet expands quickly, so does people's anticipation for the effectiveness and efficiency of mobile communication. After 2020, the fifth generation (5G) of cell communication technologies will take over as the primary direction for wireless technology growth. Problems like bad customer experience and inadequate coverage area commonly arise when the size of 5G ground stations progressively grows. Therefore, it is essential to assess the overall performance of 5G access points to identify any issues that may have arisen during base station installation. The "COPRAS (Complex Proportional Assessment)" technique is employed in this research to assess the overall performance of 5G network sites. In this study, specific 5G base stations in an area are chosen for a thorough performance assessment. Factors such as "Signal coverage area (104 m2), Annual average business loadings (kW), Per capita input cost (rupee/person), Electric field intensity (V/m), and User experience degree" are taken into consideration to assess the overall performance of a 5G ground station. The rank of alternatives using the COPRAS method for Base Station 1 is second, Base Station 2 is fifth, Base Station 3 is fourth, Base Station 4 is third, and Base Station 5 is first. The result from the COPRAS analysis shows that the base station with a signal coverage area of 26.7104 m2, annual average business loadings of 22 kW, and electric field intensity of 1.32 V/m is optimized as the best among the 5G base stations considered.