POPULATION: 349,270 POPULATION CHANGE 1980-86: 11.3% BLACK POPULATION: 12.1% HISPANIC POPULATION: 2.3% POPULATION AGE 65 AND OVER: 12.2% INCOME PER CAPITA: $12,886 (1985) PERSONS BELOW POVERTY LEVEL: 11.4% UNEMPLOYMENT RATE: 6.1% BIRTH RATE: 17.2 per 1,000 population CRIME RATE: 6,261 per 100,000 population POLICE PROTECTION: 16 officers per 10,000 population COLLEGE EDUCATION: 18.4 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: 99.3 square miles; 257.1 square kilometers LATITUDE: 41@15'N LONGITUDE: 96@00'W AREA CODE: 402 TIME ZONE: Central