ES_Prjt2_T1_County Population

1 Country Population Worksheet Population Dynamics How Did We Get Here? By now, you have developed an understanding of how populations of different organisms grow, change, and are measured—but now we will turn our attention to ourselves and our surrounding community. How did the human population that exists in this city right now get here? How big is it? How has it changed over time? 1. Using the data below, graph the population over the past century to see how it has changed over time. You may want to graph all the populations on the same graph, using different colors for the lines and data points. Or you can draw separate graphs for lines and data points and compare them. San Francisco County, CA King County, WA Polk County, IA Alameda County, CA Year Population Year Population Year Population Year Population 1900 342,782 1900 110,053 1900 82,624 1900 130,197 1910 416,912 1910 284,638 1910 110,438 1910 246,131 1920 506,676 1920 389,273 1920 154,029 1920 344,177 1930 634,394 1930 463,517 1930 172,837 1930 474,883 1940 634,536 1940 504,980 1940 195,835 1940 513,011 1950 775,357 1950 732,992 1950 226,010 1950 740,315 1960 740,316 1960 935,014 1960 266,315 1960 908,209 1970 715,674 1970 1,156,633 1970 286,101 1970 1,073,184 1980 678,974 1980 1,269,749 1980 303,170 1980 1,105,379 1990 723,959 1990 1,507,319 1990 327,140 1990 1,279,182 2000 776,733 2000 1,737,034 2000 374,601 2000 1,443,741 2010 805,235 2010 1,931,262 2010 430,640 2010 1,510,271 2020 870,014 2020 2,274,000 2020 494,281 2020 1,662,000 Community Ecology • Task 1 Originally created by the University of Washington, Life Center 2007–2015; Adapted by Lucas Education Research and their partners 2015–2020 This work is licensed under a Creative Commons Attribution 4.0 International License