Estimates of the Population of Counties in the United States by Age, Sex, and Race: July 1, 1970 through July 1, 1979 File: co-asr-7079.csv Source: U.S. Census Bureau, Population Division Internet Release date: October 22, 2004 This ascii file is comma delimited; variable record lengths. Each column described below will end at a comma. Column Description 1 Year 2 State and County FIPS Codes 3 Race/Sex code 4 0-4 year olds 5 5-9 year olds 6 10-14 year olds 7 15-19 year olds 8 20-24 year olds 9 25-29 year olds 10 30-34 year olds 11 35-39 year olds 12 40-44 year olds 13 45-49 year olds 14 50-54 year olds 15 55-59 year olds 16 60-64 year olds 17 65-69 year olds 18 70-74 year olds 19 75-79 year olds 20 80-84 year olds 21 85 years old and older The key for race/sex code is as follows: 1 = White males 2 = White females 3 = Black males 4 = Black females 5 = Other race males 6 = Other race females