The level of street-network sprawl in new development in Loreto followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Loreto, we can consider three of its most populous cities: Iquitos, Yurimaguas and Peña Negra. Out of the three cities, Yurimaguas and Peña Negra do not follow the same trend as the region. The level of street-network sprawl in new development in Yurimaguas peaked in 1976-1990. The level of street-network sprawl in new development in Peña Negra was at its lowest in 1991-2005.

As of 2020, the city with the most disconnected street network in Loreto is Peña Negra with an SNDi of 6.1, which is very sprawly. Conversely, the most connected city is Yurimaguas with an SNDi of 2.3, which is well-connected. See trends for these cities: Yurimaguas, Peña Negra

The level of street-network sprawl in the aggregate network in Loreto rose steadily. To get a sense of how the aggregate street network has changed in Loreto, we can consider three of its most populous cities: Iquitos, Yurimaguas and Peña Negra. Out of the three cities, Peña Negra does not follow the same trend as the region. The level of street-network sprawl in the aggregate network in Peña Negra fell steadily.