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Rural Population and Migration: Trend 4—Natural Decrease on the Rise

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Deaths Exceed Births in Over 800 Nonmetro Counties

Between 2000 and 2005, population patterns in nonmetro counties reverted to those of the 1980s. Population in an estimated 1,027 out of 2,051 nonmetro counties (about half) declined in population, compared with the decline in 593 counties between 1990 and 2000. This is a reversion to patterns of the 1980s. For the most part, the newly declining counties are found in and among the large agriculture-dependent zones of the Great Plains and Corn Belt that lost people in the 1990s (see map). But counties with declining populations also include Appalachian mining areas and a number of Southern counties that have relied heavily on manufacturing. Population decreased overall in both farming and mining county types (in the ERS county typology system) during 2000-05.

Heaviest nonmetro population declines were in five Midwestern States—Kansas, Iowa, Illinois, North Dakota, and Nebraska, ranging from 28,400 in Kansas to 10,300 in Nebraska (see table). Mississippi and Louisiana in the South were not in this group because, although they, too, were high in outmigration, they had sufficient excess births over deaths to nearly offset the loss from migration.

For over a generation now, deaths have outnumbered births in many U.S. counties, contributing to overall population loss. This pattern, known as natural decrease, first emerged in farming-dependent areas in the 1960s that had been losing population as labor needs in agriculture declined. Young adults in particular moved away at such high rates for so many years that the proportion of people of childbearing age was considerably reduced. Simultaneously, the average number of children born per rural family after the end of the Baby Boom in the mid-1960s fell to a level much more like that of urban families and to no more than slightly above that needed for generational replacement.

In affected counties, the combined result of these changes was a substantial rise in the average age of the population to the point where deaths exceeded births. In general, populations with a median age of 40 or older (or even in the high 30s) cannot produce more births than deaths. We now have hundreds of such counties. Natural decrease is most common in the Great Plains and Corn Belt where the fewest job alternatives to farm work have been generated. In extreme cases, some counties now have twice as many deaths as births.

Decreases in childbearing and agricultural labor requirements were as great in many parts of the South and East as in the Midwestern Farm Belt. However, natural decrease was generally avoided in the South and East, at least until more recently, for two reasons:

  • New work developed in manufacturing or services to offset the job losses in farming.
  • More cities were accessible for rural people to commute to for employment without moving.
Nonmetro natural decrease, 2000-05

Some Natural-Decrease Counties Are Retirement Destinations Where Population is Growing

All told, 839 nonmetro counties had more deaths than births between 2000 and 2005, up from 610 between 1990 and 1999. These natural-decrease counties accounted for 41 percent of all nonmetro counties. In a small number of these areas, natural decrease coincided with net inmigration for retirement to attractive rural and small locales. Despite the high average age of residents and the numerous deaths of elderly people, these county populations are typically still growing, often substantially, because the continued influx of newcomers more than offsets the excess births over deaths. These counties are most likely to be in locations with mountains, lakes, or other appealing natural terrain rather than in the agricultural heartland.

But Most Natural Decrease Stems From Prolonged Outmigration and Population Loss

More common is the situation of the 498 nonmetro counties, nearly a fourth of all nonmetro counties, that were declining in population between 2000 and 2005 both from natural decrease and net outmigration. The most common of this type of county is the thinly settled, entirely rural farming and ranching county with fewer than 10,000 people. But a number of much more populous counties experienced combined natural decrease and net outmigration due to prolonged industrial and/or mining decline. Some examples are the counties containing the cities of Quincy and Macomb, IL; Vincennes, IN; Clarksburg, WV; Escanaba, MI; New Castle and Warren, PA.

As a group, nonmetro counties with both net outmigration and natural decrease had a population of 6 million in 2005, and averaged 12,050 people each, fewer than half the nonmetro average. Stabilizing population levels will be particularly difficult for these areas unless they attract substantial additional employment. They did not acquire older age structures and low birth rates overnight, and developments that lead to rapid infusions of adults of childbearing age or higher fertility seem likely to be few. Since 2000, Maine, Pennsylvania, West Virginia, and Virginia have all had statewide natural decrease in their nonmetro population.

For more information, see data on nonmetro natural-decrease counties, 2000-05 Excel file..

 

For more information, contact: John Cromartie

Web administration: webadmin@ers.usda.gov

Updated date: February 1, 2007