Corn (Zea mays L) is a food ingredient that contains high levels of carbohydrates and calories so it can be a solution to the problem of food security and feed needs for livestock. This research aims to evaluate the suitability of corn plantations in Basi Dondo District, Tolitoli Regency, Indonesia. This research was carried out using survey methods and purposive sampling on five land map units (LMU) using ArcGIS. The results of the research show that the area is classified as quite suitable (S2) to very suitable (S1) land class, but all LMUs have different limiting factors. Very extreme, namely high rainfall in class (N). with a total land area of 429.63 Ha. Limiting factors Rainfall (N) LMU 1 (31.40 Ha), LMU 2 (192.17 Ha), LMU 3 (18.65 Ha) limiting factors (N) Rainfall, Nutrient Retention and Slope (S2), LMU 4 (176.69 Ha) and SPL 5 (10.71 Ha) have limiting factors for rainfall and nutrient retention. The limiting factors for rainfall cannot be corrected to increase to level (S3) but for nutrient retention and slope can be corrected to (S1 ) by adding fertilizer and making terracing.