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World Measure
The population almanac240 countries · 31,365 cities · UN WPP 2024
City profile · Brazil · South America

Rio das Ostras

Rio de Janeiro · Brazil
City population
168,099
#190
in Brazil
#20
in Rio de Janeiro
#3,401
worldwide
BrasíliaRio das Ostras
-22.527, -41.945 · 978 km from Brasília
City population
168,099
Within the city boundary, not a metro area
Rank in Brazil
#190
of 2,250 cities of 15,000+
World rank
#3,401
of 31,365 cities listed
Share of Brazil
0.1%
of the national population

About Rio das Ostras

Rio das Ostras is a city in Rio de Janeiro, Brazil with a population of 168,099. It is the 190th largest of the 2,250 cities of 15,000 or more listed in Brazil, and the 3,401st largest worldwide. It lies 978 km from Brasília.

Position in Brazil
#190of 2,250
LargestSmallest
Position in Rio de Janeiro
#20of 83
LargestSmallest

Key Facts

Country
Brazil
Region
Rio de Janeiro
Rank in region
#20of 83
Distance to capital
978 km
to Brasília
Elevation
11 m
Approximate — modelled, not surveyed
Time zone
America/Sao_Paulo
Coordinates
-22.527, -41.945
Record updated
2025-05-24
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 Brazil

Closest listed cities by great-circle distance from the city centre.

23KMMacaé264K people25KMArmação dos Búzios42K people27KMCasimiro de Abreu46K people38KMSão Pedro da Aldeia111K people41KMCabo Frio238K people

Explore

BrazilAll 2,250 citiesRio de Janeiro83 cities in the regionCountry profileBrazil population & indicators