Infrastructure and Planning Data Road Mileage, 1990: 1506 Unpaved Road Mileage, 1990: 18% Registered Vehicles, 1990: 131 per mile of paved road Public Transportation Use: 1.0% of commuters Private Vehicle Use: 91% of commuters Private Vehicles - Single Occupant: 73% of commuters Average Travel Time to Work: 20.2 minutes Growth of Population, 1990-2000: 33% Growth of Population 0-24 Years Old: 26% Growth of Population 65 Years and Older: 44% Projected Enrollment Change 1990-2000 Elementary (K-5): 3679 Projected Change 1990-2000 Middle School (6-8): 3105 Projected Change 1990-2000 High School (9-12): 3767 Republican Registration, 1990: 43.78% Democratic Registration, 1990: 47.26% Change in Republican Registration, 1980-1990: 144% Change in Democratic Registration, 1980-1990: 43%