Infrastructure and Planning Data Road Mileage, 1990: 399 Unpaved Road Mileage, 1990: 35% Registered Vehicles, 1990: 42 per mile of paved road Public Transportation Use:. 3% of commuters Private Vehicle Use: 92% of commuters Private Vehicles - Single Occupant: 68% of commuters Average Travel Time to Work: 16.7 minutes Growth of Population, 1990-2000: 26% Growth of Population 0-24 Years Old: -1% Growth of Population 65 Years and Older: 22% Projected Enrollment Change 1990-2000 Elementary (K-5): 173 Projected Change 1990-2000 Middle School (6-8): -54 Projected Change 1990-2000 High School (9-12): -10 Republican Registration, 1990: 6.52% Democratic Registration, 1990: 93.03% Change in Republican Registration, 1980-1990: 149% Change in Democratic Registration, 1980-1990: -1%