The line graph illustrates the population growth of Columbia, Yamhill, Washington, in the U.S States oregon from 1940 to 2000.
Overall, population of all three different countries enhanced significantly in the U.S state of Oregon between 1940 and 200. While the amount of human in Washington was always much than Columbia & Yamhill States.
Columbia had the lowest population of the three counties, at around 25,000. This compared with about 30,000 in Yamhill and approximately 75,000 in Washington on 1940 period. Slightly growth of population in Columbia in 1970 which was only 33,000. Also yamhill improved same amount and it was approximately 40,000. While the figure of people moderately rised in Washington that was over 120,000.
From 1970 to 2000 the populations of Columbia and Yamhill increased by approximately the same amounts that they had increased by the thirty years before. In 2000, Columbia’s population – at approximately 76,000 – was triple what it had been in 1940. Likewise, Yamhill’s population, at around 90,000, was almost triple what it was in 1940.
on the other hand, the number of people dramatically improved in Washington almost double on 1970 to 2000 and it was 120,000 to above 240,000.