About Riachão
Riachão is a city in Maranhao, Brazil with a population of 22,145. It is the 1,596th largest of the 2,250 cities of 15,000 or more listed in Brazil, and the 23,389th largest worldwide. It lies 947 km from Brasília.
Key Facts
Country
Region
Rank in region
#82of 122
Coordinates
-7.362, -46.617
Record updated
31 May 2025
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Nearby Cities
All 2,250 in BrazilClosest listed cities by great-circle distance from the city centre.