Since the 1980s, it is possible seeing a clear conurbation process between Maringá and Sarandi, which comprises a continuous urban spot, whose population currently totals 440,000 people: 357,000 inhabitants in Maringá and 83,000 in Sarandi.
Desde 1980, se puede observar un nítido proceso de conurbación entre Maringa y Sarandi, que comprenden una mancha urbana continua, cuya población actualmente totaliza 440.000 personas, siendo 357.000 habitantes en Maringá, y 83.000 en Sarandi.