Infrastructure and Planning Data Road Mileage, 1990: 879 Unpaved Road Mileage, 1990: 22% Registered Vehicles, 1990: 121 per mile of paved road Public Transportation Use: 1.9% of commuters Private Vehicle Use: 88% of commuters Private Vehicles - Single Occupant: 73% of commuters Average Travel Time to Work: 20.1 minutes Growth of Population, 1990-2000: 42% Growth of Population 0-24 Years Old: 23% Growth of Population 65 Years and Older: 53% Projected Enrollment Change 1990-2000 Elementary (K-5): 1985 Projected Change 1990-2000 Middle School (6-8): 2012 Projected Change 1990-2000 High School (9-12): 1976 Republican Registration, 1990: 40.60% Democratic Registration, 1990: 54.47% Change in Republican Registration, 1980-1990: 194% Change in Democratic Registration, 1980-1990: 20%