Investment has the potential to encourage the economic growth of a region. Realization of investment in Aceh Province in 2019 reached Rp5.8 trillion, an increase of around 353.9 percent compared to the previous year. Although there was a significant increase, the investment was not evenly distributed in all districts/cities in Aceh Province so that the Aceh Government needs to assist and monitor all districts/cities in an effort to improve the regional investment climate. One of the first steps that the Aceh Government needs to take is to map out investments in every districts/cities. This study aims to map the districts/cities in Aceh Province based on the average value of the realization of foreign investment and domestic investment during 2017 to 2019. The data employed were secondary data sourced from Aceh Investment and One Stop Integrated Service Office. The data were analyzed using the K-means clustering method which divided the data into 3 groups, namely low, medium and high. The results of the study showed that of the 23 regencies/cities in Aceh Province, 15 (65.2 percent), 6 (26.1 percent) and 2 (8.7 percent) of them were included in the regional group with the investment level category of low, medium and high, respectively. The Aceh Government needs to provide assistance and monitoring, especially to those 15 regions with low investment values. The provision of adequate infrastructure, proper regulations and easy licensing rules related to investment and promotion of regional potential will help improve the investment climate in Aceh Province.