Denio is a census-designated place (CDP) in Humboldt County, Nevada, along the Oregon declare line in the United States. The Denio state office was originally north of the let in line in Harney County, Oregon, but the residents moved the building into Nevada in the mid-20th century. The population of the CDP, which is totally in Nevada, was 47 at the 2010 census; additional further considered to be Denio extends into Oregon. The CDP includes a declare office, a community center, a library, and the Diamond Inn Bar, the center of the town’s social life. Recreational goings-on in the Denio area include bird watching, photography, off road vehicle use, fishing, recreational black opal mining, rockhounding, hunting, visiting the hot springs, and camping on the Sheldon National Wildlife Refuge.

Denio Junction is roughly 3 miles (5 km) south of Denio, at the junction of State Route 140 and State Route 292. Denio Junction’s motel provides gas, food, groceries, and lodging. Denio Junction Airport is a two-runway graded airstrip. There is no scheduled ventilate or ring transportation serving this field, which is a short walk from Denio Junction.

Denio was named after Aaron Denio, who arranged in the area in 1885. He was born in 1824 in Illinois and traveled to California in 1860. He worked in milling, mining, and farming in Nevada and California for 25 years in the past settling near the Oregon-Nevada border. He died at Denio in 1907. The Denio reveal office was traditional in Oregon in 1888. After World War II a number of businesses relocated south of the permit line to take advantage of Nevada’s lack of an pension tax and more futuristic liquor, gambling, and prostitution laws. The read out office was moved and reopened in Nevada in 1950 for Nevada addresses, not Oregon.

Public education in Denio (on the Nevada side) is administered by the Humboldt County School District, which operates the Denio School, a three room kindergarten-eighth grade (K-8) school. It is a two-room schoolhouse. The studious lacks a full encourage cafeteria. Its nature, as of 2004, allows teachers to have informal, flexible scheduling. It had 20 students in the 1963-1964 literary year. The enrollment in December 2004 was the same number as the 1963-1964 figure.