Infrastructure and Planning Data Road Mileage, 1990: 1276 Unpaved Road Mileage, 1990: 22% Registered Vehicles, 1990: 135 per mile of paved road Public Transportation Use: 5.4% of commuters Private Vehicle Use: 93% of commuters Private Vehicles - Single Occupant: 74% of commuters Average Travel Time to Work: 20.5 minutes Growth of Population, 1990-2000: 35% Growth of Population 0-24 Years Old: 26% Growth of Population 65 Years and Older: 78% Projected Enrollment Change 1990-2000 Elementary (K-5): 4280 Projected Change 1990-2000 Middle School (6-8): 3182 Projected Change 1990-2000 High School (9-12): 5592 Republican Registration, 1990: 42.35% Democratic Registration, 1990: 48.21% Change in Republican Registration, 1980-1990: 135% Change in Democratic Registration, 1980-1990: 51%