Lyon County is named for Nathaniel Lyon, who was a general killed in action at the Battle of Wilson’s Creek in 1861.
Surrounding County Courthouses:
N – Storey County, Washoe County and Churchill County
E – Churchill County and Mineral County
S – Mineral County and Mono County, California
W – Alpine County, California, Douglas County and Carson City
Created: November 25, 1861 
County Seat:
Dayton 1861 – 1909
Yerington 1909 – present
County Courthouse – Yerington
Location: 31 South Main Street / Grove Street
Built: 1911 – 1912
Style: Neo-Classical and Beaux Arts
Architect: Frederic J DeLongchamps of Reno
Contractor: Ward Brothers and Calder of Reno
Description: The building faces east and is a two story red colored brick and concrete structure. The building is located on landscaped grounds in the center of Yerington. The east front has a large portico with four columns rising to a pediment at the roof line. The recessed entrance is framed with stone. Behind the pediment is a large square section rising above the roof line. A wide cornice runs below the flat roof line. During construction, the supervisor was George W Hollsworth. Including a recent addition, two structures were added to the rear of the courthouse that match the style of the original building. Frederic J DeLongchamps designed the first addition in 1935.
See: Frederic J DeLongchamps designed courthouses located in Carson City ( Ormsby County ), Douglas County. Humboldt Couinty, Lander County, Perishing County and Washoe County. He also designed the California courthouse in Alpine County.
History: The first courthouse was built in Dayton by Henry Sweetapple in 1864. The building burned in a fire in 1909 and the county seat was moved to Yerrington. The second and present courthouse was constructed in 1911 to 1912.
County Justice Complex – Yerington
Location: 911 Harvey Way / Oregon Street
Built: 2011 – 2013
Style: Modern
Architect: CRA Architects
Contractor: Sletten Construction
Description: The building faces west and is a two story metal siding and concrete structure. The building is located in the north part of Yerington. The west front has a central entrance with a two story concrete porch and recessed doors on the first story. The roof is sloped.
County Administration – Yerington
Location: 27 South Main Street / Grove Street
Built: 1999 – 2000
Style: Modern
Architect: Unknown
Contractor: Unknown
Description: The building faces east and is a one story red colored brick and concrete structure. The building is located in the center of Yerington on the north side of the courthouse.
County Courthouse – Yerington
County District Court courtroom
County Justice Complex – Yerington
County Administration – Yerington
Photos taken 2013