(Mostly) electrically-powered lines extending out past the Portland city limits. Abandonment dates listed below are for passenger service; many of these lines continued as freight-only operations after passenger service ended.

Interurban Lines – Oregon (16)

“Carver Line” (1915–1928)

Cazadero (1903–1958)

Gladstone Park Branch (1893–1901)

Gladstone Park Branch (1907–1926)

“In And Out of Portland” (1905–???)

Oregon City (1891–1958)

Oregon Electric – Corvallis (1913–1931)

Oregon Electric – Forest Grove (1908–1932)

Oregon Electric – Main Line (1906–1933)

Oregon Electric – Woodburn (1910–1926)

Mount Angel (1915–1933)

Mount Hood (1911–1930)

Southern Pacific – East Side (1914–1929)

Southern Pacific – West Side (1914–1929)

Troutdale (1907–1927)

Wilkesboro (1909–1923)

Interurban Lines – Washington (1)

Orchards–Sifton (1910–1926)