The line graph provided offers insights into the population changes in three counties in the U.S. state of Oregon from 1940 to 2000.
The data illustrates an overall population growth trend in Oregon, with Washington County experiencing the most substantial increase compared to Yamhill and Columbia counties, which showed steadier growth.
Initially, in 1940, the population of Washington County was notably higher at 75,000, compared to Yamhill and Columbia counties with around 30,000 residents each. By 1970, Washington’s population surged to over 120,000 while Yamhill and Columbia grew to 45,000 and about 33,000, respectively. This made Washington more than twice as populous as the other two counties combined.
By 2000, the population of Washington County had soared to over 240,000, showcasing a remarkable increase. Yamhill and Columbia counties also experienced growth, reaching approximately 90,000 and slightly above 75,000 residents, respectively. Thus, the data highlights a consistent and substantial population rise in Washington County, whereas Yamhill and Columbia counties maintained a relatively slower pace of growth.
