POPULATION: 56,900 POPULATION CHANGE 1980-86: 0.8% BLACK POPULATION: 0.7% HISPANIC POPULATION: 1.8% POPULATION AGE 65 AND OVER: 12.3% INCOME PER CAPITA: $9,996 (1985) PERSONS BELOW POVERTY LEVEL: 10.3% UNEMPLOYMENT RATE: 7.6% BIRTH RATE: 17.0 per 1,000 population CRIME RATE: 7,182 per 100,000 population POLICE PROTECTION: 16 officers per 10,000 population COLLEGE EDUCATION: 8.7 percent with 4 years or more JANUARY MEAN TEMPERATURE: 20.2@ Fahrenheit JULY MEAN TEMPERATURE: 77.7@ Fahrenheit ANNUAL PRECIPITATION: 30.3 inches LAND AREA: 38.8 square miles; 100.5 square kilometers LATITUDE: 41@14'N LONGITUDE: 95@54'W AREA CODE: 712 TIME ZONE: Central