Estimates of the Population of Counties by Age and Sex: 1990-1999 Source: U.S. Census Bureau Internet Release date: August 30, 2000 This file contains estimates of the population of the State total and and the counties in each state (1999 geography) by single year of age (0, 1, 2, ..., 84, 85 and over) by sex (male, female) for July 1 of each year from 1990 to 1999. Character Item Description 1-2 FIPS State Code 3-5 FIPS County Code 6 Blank 7-8 Age Indicator: 0 = Under 1 year 1 = 1 year 2 = 2 years . : 83 = 83 years 84 = 84 years 85 = 85 years and over 9 Blank 10 Sex indicator (1=male 2=female) 11-17 July 1, 1990 18-24 July 1, 1991 25-31 July 1, 1992 32-38 July 1, 1993 39-45 July 1, 1994 46-52 July 1, 1995 53-59 July 1, 1996 60-66 July 1, 1997 67-73 July 1, 1998 74-80 July 1, 1999