Mosquitoes are a major health concern due to their nuisance and the pathogens they transmit. Mosquito vector control requires knowledge of their habitats. This study aimed at presenting the results of a survey in the capital city of Lomé to assess for the first time the spatial distribution of the dengue vector Aedes aegypti. Between February and April 2020, which is the dry season, immature stages of Aedes aegypti were collected within habitations in 19 neighborhoods across Lomé, using ovitraps. The geographical coordinates of each site were taken. The sites were visited every five days for larvae collection. Collected larvae were then sorted, identified, counted, and were reared to adulthood. Pictures of potential habits were also taken. Out of 10,877 mosquito larvae collected, 9,971 (91.7%) were Aedes aegypti, 568 (5.2%) were Culex sp, and 338 (3.1%) were Anopheles sp. Aedes aegypti was the dominant species in all these neighborhoods with the highest numbers recorded at DOUMASSESSE (1112), CAMPUS UL (860), and KAGOME (821) while the lowest were recorded at DJIDJOLE (182), ATTIEGOU KLOKLOVICOPE (209), and TOKOIN N'TIFAFA (320). Analyses revealed that Aedes aegypti population increases with the altitude and reaches a peak before decreasing. Pictures of habitats showed that they mostly result from human activities. This study indicates the presence and distribution of Aedes aegypti mosquito in urban areas in Lomé. The proliferation of Aedes aegypti in urban areas, close to humans due to favorable conditions constitutes a potential risk of dengue virus transmission. The spread of this mosquito could be linked to the unhealthy environment and human activities.