(ST-98-49) Housing Unit Estimates for July 1, 1998 and Housing Unit Change for April 1, 1990 to July 1, 1998 (includes revised April 1, 1990 Census Housing Unit Counts) The documentation is located at the end of the data file. Source: Population Estimates Program, Population Division, U.S. Census Bureau, Washington, DC 20233 Contact: Statistical Information Staff, Population Division, U.S. Census Bureau, (301-457-2422) Internet release date: December 8, 1999 4/1/90 to 7/1/98 7/1/98 4/1/90 Numeric Percent Area Estimate Census Change Change United States 112,498,582 102,262,196 10,236,386 10.0 Northeast 21,753,408 20,810,890 942,518 4.5 New England 5,832,315 5,570,296 262,019 4.7 Middle Atlantic 15,921,093 15,240,594 680,499 4.5 Midwest 26,486,725 24,492,815 1,993,910 8.1 East North Central 18,408,362 17,027,977 1,380,385 8.1 West North Central 8,078,363 7,464,838 613,525 8.2 South 40,674,258 36,063,750 4,610,508 12.8 South Atlantic 21,554,529 18,717,885 2,836,644 15.2 East South Central 6,954,501 6,213,675 740,826 11.9 West South Central 12,165,228 11,132,190 1,033,038 9.3 West 23,584,191 20,894,741 2,689,450 12.9 Mountain 7,071,256 5,863,901 1,207,355 20.6 Pacific 16,512,935 15,030,840 1,482,095 9.9 Alabama 1,865,970 1,670,258 195,712 11.7 Alaska 248,472 232,608 15,864 6.8 Arizona 2,005,552 1,659,439 346,113 20.9 Arkansas 1,092,343 1,000,579 91,764 9.2 California 12,037,170 11,182,503 854,667 7.6 Colorado 1,722,056 1,477,348 244,708 16.6 Connecticut 1,379,006 1,320,851 58,155 4.4 Delaware 326,363 289,919 36,444 12.6 District of Columbia 264,831 278,489 -13,658 -4.9 Florida 7,006,759 6,100,248 906,511 14.9 Georgia 3,184,246 2,637,906 546,340 20.7 Hawaii 440,044 389,811 50,233 12.9 Idaho 503,455 413,322 90,133 21.8 Illinois 4,776,992 4,506,275 270,717 6.0 Indiana 2,502,753 2,246,044 256,709 11.4 Iowa 1,208,296 1,143,666 64,630 5.7 Kansas 1,129,786 1,044,111 85,675 8.2 Kentucky 1,663,975 1,506,930 157,045 10.4 Louisiana 1,805,917 1,716,229 89,688 5.2 Maine 626,434 587,045 39,389 6.7 Maryland 2,091,171 1,891,665 199,506 10.5 Massachusetts 2,568,415 2,472,710 95,705 3.9 Michigan 4,167,866 3,847,940 319,926 8.3 Minnesota 2,020,508 1,848,567 171,941 9.3 Mississippi 1,106,487 1,010,421 96,066 9.5 Missouri 2,393,506 2,199,084 194,422 8.8 Montana 382,881 361,155 21,726 6.0 Nebraska 711,203 660,634 50,569 7.7 Nevada 766,560 518,778 247,782 47.8 New Hampshire 539,112 503,904 35,208 7.0 New Jersey 3,236,773 3,075,310 161,463 5.3 New Mexico 746,634 632,058 114,576 18.1 New York 7,455,399 7,227,059 228,340 3.2 North Carolina 3,366,723 2,818,073 548,650 19.5 North Dakota 293,415 276,340 17,075 6.2 Ohio 4,681,506 4,371,944 309,562 7.1 Oklahoma 1,459,000 1,406,495 52,505 3.7 Oregon 1,400,764 1,193,574 207,190 17.4 Pennsylvania 5,228,921 4,938,225 290,696 5.9 Rhode Island 430,609 414,572 16,037 3.9 South Carolina 1,683,172 1,423,771 259,401 18.2 South Dakota 321,649 292,436 29,213 10.0 Tennessee 2,318,069 2,026,066 292,003 14.4 Texas 7,807,968 7,008,887 799,081 11.4 Utah 730,847 598,388 132,459 22.1 Vermont 288,739 271,214 17,525 6.5 Virginia 2,836,783 2,496,519 340,264 13.6 Washington 2,386,485 2,032,344 354,141 17.4 West Virginia 794,481 781,295 13,186 1.7 Wisconsin 2,279,245 2,055,774 223,471 10.9 Wyoming 213,271 203,413 9,858 4.8 Documentation notes for the October 1999 release of July 1, 1998 household and housing unit estimates. Age - The age of individuals is age at their last birthday. Census Regions and Divisions - The Census Bureau delineates two sets of sub-national regions that are formed of states. This two-tiered system of regions consists of 9 census divisions nested within 4 census regions. The Northeast region includes the New England division: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont; and the Middle Atlantic division: New Jersey, New York, and Pennsylvania. The Midwest region includes the East North Central division: Illinois, Indiana, Michigan, Ohio, and Wisconsin; and the West North Central division: Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota. The South region includes the South Atlantic division: Delaware, District of Columbia, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, West Virginia; the East South Central division: Alabama, Kentucky, Mississippi, and Tennessee; and the West South Central division: Arkansas, Louisiana, Oklahoma, and Texas. The West region includes the Mountain division: Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, and Wyoming; and the Pacific division: Alaska, California, Hawaii, Oregon, and Washington. Household - A household includes all people who occupy a housing unit. A household consists of a single family, one person living alone, two or more families living together, or any other group of related or unrelated people who share living arrangements. Householder - One person in each household is designated as the householder. In most cases, this is the person, or one of the people, in whose name the home is owned, being bought, or rented. If there is no such person in the household, any adult household member 15 years old and over could be designated as the householder. Housing Unit (Census) - A housing unit is a house, an apartment, a mobile home, a group of rooms, or a single room that is occupied (or if vacant, intended for occupancy) as separate living quarters. Separate living quarters are those in which the occupants live and eat separately from any other people in the building and which have direct access from the outside of the building or through a common hall. The April 1, 1990 census count of housing units is the number of housing units in an area as reported in the 1990 Census of Housing, or as subsequently revised. Revisions to an area's 1990 census count of housing units may occur as the result of (1) post-1990 census corrections of political boundaries, geographic misallocations, or documented underenumerations or overenumerations, and (2) geographic boundary updates made subsequent to the 1990 census, which include annexations, new incorporations, mergers, etc. The closing date for these two forms of revisions applied to this set of estimates was December, 1996. Housing Unit (Estimate) - Estimates of the number of housing units are calculated by updating the number of housing units from the 1990 census with data on subsequent gains and losses to the housing inventory. The main data sources for estimating these gains and losses are construction and demolition permits. For areas where permit data are not available, alternative methods are used to estimate the construction and demolition of units. Additional information on the methodology used to produce these housing unit estimates is contained at our Internet site with a URL of . Persons per Household - The number of persons per household is obtained by dividing the number of persons in households by the number of households (or householders). Population (Census) - The April 1, 1990 census population is a count of the number of people residing in an area (resident population) as reported in the 1990 Census of Population, or as subsequently revised. Revisions to an area's 1990 census population count may occur as the result of (1) post-1990 census corrections of political boundaries, geographic misallocations, or documented underenumerations or overenumerations, and (2) geographic boundary updates made subsequent to the 1990 census, which include annexations, new incorporations, mergers, etc. The closing date for these two forms of revisions applied to this set of estimates was December, 1996. Population (Estimate) - The estimated population is the computed number of people living in an area (resident population) as of July 1. The estimated population is calculated from a demographic components of change model that incorporates information on natural change (births and deaths) and net migration (net domestic migration and net movement from abroad) that has occurred in the area since the reference date, such as April 1, 1990, the date of the 1990 census. Additional information on the methodology used to produce these population estimates is contained in Current Population Reports P25-1127 and at our Internet site with a URL of .