Itō is located in eastern Shizuoka Prefecture, on the northeast corner of Izu Peninsula, facing Sagami Bay on the Pacific Ocean. The landscape is hilly, and the heavily indented coastline is scenic. Much of the coastal area of the city is within the Fuji-Hakone-Izu National Park. The city is located within the Izu-Tobu volcanic zone, and is subject to frequent earthquakes. The area is noted for its onsen hot spring resorts.