Gresham/Ebetsu

Eugene/Kakegawa

Florence/Yamagata

Madras/Tomi

Ontario/Osakasayama

Roseburg/Kuki

Milwaukie/Iwaki

Pendleton/Minamisoma

Oregon City /Tateshina

Newberg/Asago

Coos Bay/Chōshi

Wilsonville/Kitakata

Camas/Taki

Seaside/Shakotan

Forest Grove/Nyuzen

Lake Oswego/Yoshikawa

Newport/Monbetsu

Canby/Iwamizawa

Hood River/Tsuruta

Hillsboro/Fukuroi

Portland/Sapporo

Camas/Hamamatsu

Beaverton/Gotemba

The Dalles/Miyoshi

Salem/Kawagoe

Vancouver/Joyo

Ebetsu/Gresham

Kakegawa/Eugene

Yamagata/Florence

Tomi/Madras

Osakasayama/Ontario

Kuki/Roseburg

Iwaki/Milwaukie

Minamisoma/Pendleton

Tateshina/Oregon City

Asago/Newberg

Chōshi/Coos Bay

Kitakata/Wilsonville

Taki/Camas

Shakotan/Seaside

Nyuzen/Forest Grove

Yoshikawa/Lake Oswego

Monbetsu/Newport

Iwamizawa/Canby

Tsuruta/Hood River

Fukuroi/Hillsboro

Sapporo/Portland

Hamamatsu/Camas

Gotemba/Beaverton

Miyoshi/The Dalles

Kawagoe/Salem

Joyo /Vancouver

State of Oregon/Toyama Prefecture

Toyama Prefecture/State of Oregon