The level of street-network sprawl in new development in Nam Định peaked in 1991-2005. To get a sense of how street development has changed in Nam Định, we can consider three of its most populous cities: Nam Định, Cổ Lễ and Yên Định. Out of the three cities, Cổ Lễ and Yên Định do not follow the same trend as the region. The level of street-network sprawl in new development in Cổ Lễ was at its lowest in 1976-1990. The level of street-network sprawl in new development in Yên Định was at its lowest in 1976-1990.

As of 2020, the city with the most disconnected street network in Nam Định is Ninh Cường with an SNDi of 6.25, which is very sprawly. Conversely, the most connected city is Yên Định with an SNDi of 3.3, which is moderately connected. See trends for these cities: Yên Định, Ninh Cường

The level of street-network sprawl in the aggregate network in Nam Định rose steadily. To get a sense of how the aggregate street network has changed in Nam Định, we can consider three of its most populous cities: Nam Định, Cổ Lễ and Yên Định. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Nam Định peaked in 1991-2005. The level of street-network sprawl in the aggregate network in Cổ Lễ was at its lowest in 1976-1990. The level of street-network sprawl in the aggregate network in Yên Định was at its lowest in 1976-1990.