Infrastructure and Planning Data Road Mileage, 1990: 3738 Unpaved Road Mileage, 1990: .7% Registered Vehicles, 1990: 218 per mile of paved road Public Transportation Use: 5.3% of commuters Private Vehicle Use: 87% of commuters Private Vehicles - Single Occupant: 76% of commuters Average Travel Time to Work: 21.2 minutes Growth of Population, 1990-2000: 20% Growth of Population 0-24 Years Old: 8% Growth of Population 65 Years and Older: 36% Projected Enrollment Change 1990-2000 Elementary (K-5): 8740 Projected Change 1990-2000 Middle School (6-8): 10877 Projected Change 1990-2000 High School (9-12): 9118 Republican Registration, 1990: 29.73% Democratic Registration, 1990: 64.85% Change in Republican Registration, 1980-1990: 114% Change in Democratic Registration, 1980-1990: 1%