Population Change in Ohio
Maps and Animation Page

Andy Woodruff
Geography 353: Cartography and Visualization
There are five types of maps:
Population Change, Main Scheme Population Change, Second Scheme Dot Density Graduated Symbols Proportional Symbols

Population Change Maps

(Main Classification Scheme)

These chloropleth maps show population change by county for each decade from 1900 to 2000. They use a classification scheme I devised and explained in the Lab Log.

(If the animation stops, refresh the page)
Percent Population Change
-20% to -7%
-7% to 0%
0% to 9%
9% to 19%
19% to 35%
35% to 60%
60% to 165%
Detailed county data and a reference map of Ohio counties and major cities appears below.
Click here to see a more slowly animated version (opens a new window), or choose a static map from below:
1900-1910 1910-1920 1920-1930 1930-1940 1940-1950 1950-1960 1960-1970 1970-1980 1980-1990 1990-2000

Ohio counties and cities reference map

Select a county from the list below to see a table and graph of its population data.
 

Also see a summary map and chart of change over the century for the whole state.

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Ohio Wesleyan University