The exponential growth of Savannah

I recently found a map of the municipal annexations of the City of Savannah. The animation below illustrates the growth of the municipality from 1838 to 1979.

(Note: some annexations in the map were combined to simplify the animation.)

This rate of growth starkly contrasts with Savannah’s first century as a city. During that period, city’s footprint grew in increments of wards.

Over the period shown in the animation above, the city’s population grew 12-fold from just over 11,000 (1840 census) to  over 141,000 (1980 census). In hindsight, I wish I had used GIS for this exercise so I could provide an accurate comparison of the change in land area over the same time period.