[1] The city is situated 254 km southeast of the capital, Niamey, is located on the banks of the Niger River,[2] and is near the borders with Benin and Nigeria.

[3] Gaya is located in the south-west of the country on the Niger River in the Dendi landscape in the Sudan region.

Gaya's neighbouring municipalities in Niger are Tanda in the north-west, Bana in the north-east, Bengou in the east and Tounouga in the south-east.

The neighbourhoods are called Bagueizé, Koiratégui II, Koiratégui III, Koussou, Koyzé Kounda, Lawaye, Plateau I, Plateau II, Quartier Bagueyzé, Quartier Peul, Sakabatama, Sakongui and Zongo.

[10] The strong immigration is due to the economic importance of the city and leads to a lively real estate activity.

[13] Gaya is particularly important for trade with Benin and Nigeria, where livestock and plant-based foods such as black-eyed peas and peanuts are sold and where sweet potatoes and ready-made products come from.

Particularly in the eastern and north-eastern parts of Gaya, for example in the Plateau district, the cityscape is characterised by large warehouses.