1 The concept of âdemographic changeâ describes a populationâs age structure adjusting to. changes in living conditions. Consequently, changes in thcomposition of a societyâe s age. structure are the result of social shifts. (. 2  cf. . 3  theory of first and second demographic transition.
Beeville, TX. Sponsored Topics. Beeville is a city in Bee County, Texas, United States. The population was 13,129 at the 2000 census. It is the county seat of Bee County. It is the home of a community college, Coastal Bend College.
Centerville is a city in Leon County, Texas, United States. The population was 903 at the 2000 census. It is the county seat of Leon County. Centerville was so named as it is near the geographic center of Leon County. However, it is also coincidentally located nearly midway between Dallas and Houston. According to the United States Census Bureau, Centerville has a total area of 1.5 square miles (3.8 km2), all of it land.