A few facts about Campo Maior
- About 47,000 people live in Campo Maior.
- It's part of Piauí.
- It's about 2136 km to São Paulo, the country's largest city.
- For a bigger city, Teresina is about 76 km away.
- Towns nearby: Altos (40 km), Cabeceiras do Piauí (42 km) and José de Freitas (46 km).