In which state is the city of Sparks located?

In which state is the city of North Platte located? In which state is the city of Scottsbluff located? In which state is the city of Las Vegas located? In which state is the city of Reno located? In which state is the city of Elko located? In which state is the city of Manchester located? In which state is the city of Nashua located? In which state is the city of Jersey City located?