There are
1,832 mi
from Nampa, ID to Rio Grande City, TX
That's the driving distance. It would take 1 day 10 hours to go from Nampa, Idaho to Rio Grande City, Texas.
The flight distance (direct flight from Nampa, ID to Rio Grande City, TX) is 1,547.22 mi.
1,832 mi = 2,948.57 kms