Map of Ouro Preto do Oeste, Brazil

Ouro Preto do Oeste is a city in Rondônia, Brazil, with a population of about 35,044. It lies at 10.7481°S, 62.2158°W. Ouro Preto do Oeste is about 1,644 km (1,021 mi) west of Brasília, the capital. The nearest city on our map is Ji Paraná, 33 km to the southeast.

Ouro Preto do Oeste at a glance

Where is Ouro Preto do Oeste?

• The 10th largest city in Rondônia on this site.
• Located in the Southern and Western hemispheres.
• Daylight ranges from about 11 h 30 min on the shortest day to 12 h 45 min on the longest day (around 21 June and 21 December).

Cities near Ouro Preto do Oeste

• Ji Paraná — 33 km southeast
• Jaru — 44 km northwest
• Cacoal — 114 km southeast
• Ariquemes — 129 km northwest
• Pimenta Bueno — 152 km southeast
• Pôsto Fiscal Rolim de Moura — 260 km south
• Porto Velho — 288 km northwest
• Vilhena — 316 km southeast
• Guajará Mirim — 341 km west
• Guayaramerín — 343 km west, Bolivia

Largest cities in Rondônia

• Porto Velho — 548,952
• Ji Paraná — 140,101
• Vilhena — 109,651
• Ariquemes — 96,833
• Cacoal — 85,893
• Jaru — 50,591
• Guajará Mirim — 46,556
• Pôsto Fiscal Rolim de Moura — 37,949
• Pimenta Bueno — 36,881

Largest cities in Brazil

• São Paulo — 12,400,232
• Rio de Janeiro — 6,747,815
• Belo Horizonte — 2,721,564
• Salvador — 2,711,840
• Fortaleza — 2,400,000
• Manaus — 2,219,580
• Brasília — 2,207,718
• Curitiba — 1,948,626
• Recife — 1,653,461
• Goiânia — 1,536,097

Map of Brazil and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.