2. Component Method II. This method employs vital statistics to measure natural increase and school enrollment to measure net migration. The estimates made by the Census Bureau's Component Method II are specific to the civilian population under 65. To this population is added an estimate of the resident military population based on station strength statistics and an estimate of the population 65 and over based on Medicare statistics.1 The provisional July 1, 1973 estimates for large metropolitan counties were developed by adding the average change between 1972 and 1973 estimates based on Component Method II and the Housing Unit method to the 1972 estimates. In the Housing Unit method the estimates of population are based on estimates of the housing inventory. Changes in the housing inventory are derived from data on building permits issued and demolition records, or on data on electric meter connections. The provisional July 1, 1973 estimates for the remaining counties were developed by adding the change between 1972 and 1973 Component Method II estimates to the 1972 estimates. All counties were subsequently adjusted to agree with the provisional July 1, 1973 State estimate published in Current Population Reports, Series P-25, No. 508. Table 2 of this report presents estimates of the population of metropolitan areas and metro 1See footnote 1 on page 1. politan counties in the State. The titles and definitions of the standard metropolitan statistical areas (SMSA's) are those currently defined by the Office of Management and Budget, Executive Office of the President. Where an SMSA falls in more than one State (indicated in the SMSA title) information on the other State parts of the area can be obtained by referring to the P-26 report for the other States. Corresponding estimates for other States in the program will be published as they become available. The appendix table shows reports published to date for States in the 1972-73 series, together with those published earlier for 1971 and provisional 1972. The 1970 census total for the State shown on the table may differ slightly from the sum of the counties because of corrections made subsequent to the release of the official State figure. All county populations for 1970 reflect corrections in the census count published in the bound 1970 census volume for the State. Counties with corrections of more than 500 are Garfield, Oklahoma, and Tulsa. The estimates presented in the table have been rounded to the nearest hundred without being adjusted to the State total, which was independently rounded to the nearest thousand. Percentages are based on unrounded numbers. Table 1. ESTIMATES OF THE POPULATION OF OKLAHOMA COUNTIES: (State estimates are shown to the nearest thousand, county estimates to the nearest hundred) Table 1. ESTIMATES OF THE POPULATION OF OKLAHOMA COUNTIES: (State estimates are shown to the nearest thousand, county estimates to the nearest hundred) Z Less than 50 or less than 0.05 percent. 'Total does not agree with the sum of the counties due to corrections made to the county populations after release of the official State counts. 2Births and deaths are based on reported vital statistics from April 1, 1970, to December 31, 1972, with extrapolations to June 30, 1973. Net migration is the difference between net change and natural increase. Table 2. ESTIMATES OF THE POPULATION OF METROPOLITAN AREAS AND THEIR (SMSA totals rounded independently of county numbers) 'Births and deaths are based on reported vital statistics from April 1, 1970, to December 31, 1972, with extrapolations to June 30, 1973. Net migration is the difference between net change and natural increase. 11.6 APPENDIX ESTIMATES PUBLISHED IN SERIES P-26 REPORTS SINCE 1970 CENSUS |