Infrastructure and Planning Data Road Mileage, 1990: 1876 Unpaved Road Mileage, 1990: 42% Registered Vehicles, 1990: 157 per mile of paved road Public Transportation Use: 1.1% of commuters Private Vehicle Use: 90% of commuters Private Vehicles - Single Occupant: 75% of commuters Average Travel Time to Work: 17.5 minutes Growth of Population, 1990-2000: 40% Growth of Population 0-24 Years Old: 15% Growth of Population 65 Years and Older: 52% Projected Enrollment Change 1990-2000 Elementary (K-5): 807 Projected Change 1990-2000 Middle School (6-8): 2147 Projected Change 1990-2000 High School (9-12): 3576 Republican Registration, 1990: 46.59% Democratic Registration, 1990: 48.71% Change in Republican Registration, 1980-1990: 151% Change in Democratic Registration, 1980-1990: -13%