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<br />Section 5 <br />Consumptive Water Needs in the South Platte Basin and <br />Denver/South Metro Counties <br /> <br />5.1.1.2 Population Projections <br /> <br />Future population projections were obtained from the <br />Colorado DOLA, Demography Section. This dataset <br />contains county population projections from 2000 to 2030 <br />in annual increments. Populations for counties that lie <br />within two or more basins were allocated to the <br />respective basins based on estimates from known <br />population centers within each basin. <br /> <br />From 2000 to 2030, Colorado's population is projected to <br />increase by about 2.8 million additional people - a <br />65 percent increase - to a 2030 population of over <br />7.1 million. Aggregated basin summaries of the data are <br />presented in Figure 5-1 and Table 5-2. The vast majority <br />of the state's population in 2030 will live in the South <br />Platte and Arkansas Basins. <br /> <br />Yampa/White/Green <br />Colorado <br />Gunnison <br />Dolores/San Juan <br /> <br />Arkansas <br /> <br /> <br />South <br />Platte <br /> <br />Rio Grande <br /> <br />Figure 5-1 <br />Relative 2030 Populations in Each Basin <br /> <br />Table 5-2 Population Projections by Basin <br /> <br />2000 <br /> <br />Arkansas <br />Colorado <br />Dolores/San Juan/San Miguel <br />Gunnison <br />North Platte <br />Rio Grande <br />m;mm. . <br />gn.. <br /> <br />835,100 <br />248,000 <br />90,900 <br />88,600 <br />1,600 <br />46,400 <br />~ <br /> <br /> <br />Source: Colorado DOLA, Demography Section <br /> <br />S:\1177\Basin Reports\South Platte\S5_South Platte.doc <br /> <br />On a basin level, West Slope growth rates are projected <br />to be the highest, with the Colorado Basin population <br />almost doubling and Gunnison River and Dolores/San <br />Juan/San Miguel Basins' populations increasing by 82 <br />and 89 percent, respectively. <br /> <br />5.1.1.3 Estimates of Per Capita M&I Water Use <br /> <br />Numerous factors affect per capita water use rates, and <br />through the course of SWSI, differences in the water use <br />components that are included or excluded from individual <br />entities' per capita estimates clearly affected the resulting <br />values. Per capita water use rates are in large part a <br />function of: <br /> <br />. Number of households <br /> <br />. Persons per household <br /> <br />. Median household income <br /> <br />. Mean maximum temperature <br /> <br />. Total precipitation <br /> <br />. Total employment <br /> <br />. Ratio of irrigated public land areas (e.g., parks) to <br />population in service area <br /> <br />. Level of tourism and/or second homes <br /> <br />. Ratio of employment by sector (e.g., agriculture, <br />commercial, industrial) <br /> <br />. Urban/rural nature of county <br /> <br />I I <br /> <br />Increase in <br />Population <br /> <br /> <br />1,293,000 <br />492 600 <br />171,600 <br />161,500 <br />2,000 <br />62,700 <br />~ <br /> <br />457,900 <br />244,600 <br />80,700 <br />72,900 <br />400 <br />16,300 <br />~ <br /> <br />1.5 <br />2.3 <br />2.1 <br />2.0 <br />0.7 <br />1.0 <br />m1 <br /> <br />fII <br /> <br />1.5 <br />1.7 <br /> <br />CONI <br /> <br />5-3 <br />