The level of street-network sprawl in new development in Oregon peaked in 1976-1990. To get a sense of how street development has changed in Oregon, we can consider three of its most populous cities: Portland, Eugene and Salem. Out of the three cities, Salem does not follow the same trend as the region. The level of street-network sprawl in new development in Salem peaked in 1991-2005.

As of 2020, the city with the most disconnected street network in Oregon is Salem with an SNDi of 3.67, which is relatively sprawly. Conversely, the most connected city is Medford with an SNDi of 3.0, which is moderately connected. See trends for these cities: Medford, Salem

The level of street-network sprawl in the aggregate network in Oregon rose steadily. To get a sense of how the aggregate street network has changed in Oregon, we can consider three of its most populous cities: Portland, Eugene and Salem. Disconnectivity in the most populous cities in Oregon follow the same region trend.