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Scientific Data Documentation
Postcensal Population Estimates, Demo-Detail 1990-1992
DSN: CC36.CENSUS.POSTCEN.Y9092.DEMODETL DATA USE AGREEMENT TAPE/DISK LICENSE AGREEMENT THE FOLLOWING TERMS AND CONDITIONS APPLY TO THE PURCHASE OF DEMO- DETAIL'S DEMOGRAPHIC DATA ON MAGNETIC TAPE/DISK. THE CONTENT OF THE TAPE(S)/DISK(S) AND SUPPORTING MATERIALS AND DOCUMENTATION THAT ACCOMPANY THEM HAS BEEN COPYRIGHTED IN ACCORDANCE WITH COPYRIGHT LAWS OF THE UNITED STATES. ANY USE INCONSISTENT WITH U.S. COPY- WRIGHT LAW WILL BE CONSIDERED A VIOLATION OF THIS LAW AND OF THE TERMS AND CONDITIONS UPON WHICH THIS USE IS CONDITIONED. With the purchase and acceptance of the accompanying tape(s), Demo-Detail grants Centers for Disease Control(ODe) a nonexclu- sive license to use the encoded data and supporting materials/ documentation (hereinafter "information") consistent with the copyright laws and the following terms and conditions. 1. The license to use the information is restricted to the pur- chaser thereof and may not be transferred to any other entity whether or not affiliated with licensec (hereinafter "you"). 2. The information is to be used by you solely for internal pur- poses and may not be sold or distributed to others except as otherwise provided herein. a. You may modify this information and/or merge it with other information for your internal use. b. Reproduction of the information, in any form, is allowed if used solely within CDC in Atlanta. c. Publication of the information within reports/materials prepared by you is allowed if the source is cited in the reports/materials, and if the information is incidental to the content of the same reports/materials. d. You may reproduce the information in computer readable form and place it in the CDC central computer for use by CDC personnel. You may download portions of the file to CDC personal computers, but the information may not be trans- ferred in whole or in part to another large computer without the express written consent of Demo-Detail. 3. Demo-Detail warrants that it is the true, lawful and exclusive owner of the information with full power to license use of the information pursuant to this agreement. 4. Demo-Detail makes no representations of warranties, express or implied, as to the merchantability, fitness for any particular purpose or otherwise with respect to the information, except as provided in this agreement. Demo-Detail shall not be liable for any special or consequential damages arising from the use and distribution of the information, nor shall it be liable to you for any design, performance, or other fault or inadequacy of the information, beyond the amount of the purchase price.ABSTRACT METHODOLOGY FOR 1991 AND 1992 AGE-RACE-SEX COUNTY ESTIMATES Introduction The 1991 and 1992 county estimates are based on the 1990 census counts, as modified by the Census bureau in its MARS file. The estimates provide data for the White, Black, Indian, and Asian populations, by sex, for 5-year age groups (0-4, 5-9, 10-14, etc. to 85+). An additional project provides similar data for Spanish. The race modification carried out by the Census Bureau in the MARS file assigned those persons who did not indicate a specific race on their census form (approximately 9.8 million) to White, Black, Indian, or Asian. Most of these persons were of Spanish heritage, and were assigned chiefly to the White population. The Bureau also modified the age distributions, most notably for the population under 5 years of age. Estimation Procedure 1. Race estimates (White, Black, and Other) for each county in 1990 were obtained by bringing the 1980 census figures forward with data on births, deaths, and estimated migration (internal and international). By controlling these estimates to 1990 census data, migration estimates for the decade consistent with both the 1980 and 1990 censuses were obtained. 2. Projections of births and deaths by race for 1990-95 were prepared. The projections were controlled to agree with the Census Bureau's national birth projections, middle series, in Current Population Reports, Series P-25, No.1092. 3. Population projections by race to 1995 were prepared using the 1980-90 migration rates. The projections were controlled to agree with the Bureau's national population projections, and to be consistent with their 1991 estimates of the total population of each county. The Asian population was estimated as a proportion of the "Other" races, the residual being American Indians. 4. The age and sex distribution in 1995 for each county was obtained using Demo-Detail's Alternative procedure as described in professional paper "A Preliminary Comparison of Demo-Detail's County Estimates by Age and Sex with the 1990 Census", presented at the annual meeting of the Southern Demographic Association, October 1991, available on request. The estimates for 1990, 1991 and 1992 (July 1) were obtained by interpolation between the data for April 1, 1990 and July 1, 1995, controlling them to the Bureau's national estimates by age, sex and race in Series P-25, No.1104, and to their 1991 estimates of the total population of each county. This produced the final estimates for White, Black, Indian and Asian, by age and sex.RECORD LAYOUT Tape Record Layout COUNTY AGE-SEX-RACE ESTIMATES (Total,White,Black,Asian): 1990-1992 Character Item 1 Blank 2-3 FIPS State Code 4-6 FIPS County Code 7-18 County Name 19-24 4/1/90 Total Male 0-4 years 25-30 5-9 years 31-36 10-14 years 37-42 15-19 years 43-48 20-24 years 49-54 25-29 years 55-60 30-34 years 61-66 35-39 years 67-72 40-44 years 73-78 45-49 years 79-84 50-54 years 85-90 55-59 years 91-96 60-64 years 97-102 65-69 years 103-108 70-74 years 109-114 75-79 years 115-120 80-84 years 121-126 85 yrs & over 127-234 Total Female (repeat) 235-342 White Male " 343-450 White Female " 451-558 Black Male " 559-666 Black Female " 667-774 Asian Male " 775-882 Asian Female " 883-1746 7/1/90 (repeat) 1747-2610 7/1/91 " 2611-3474 7/1/92 " (no CR/LF) Note: American Indian population can be obtained by subtraction.
