Question: What was America’s population growth over the five decades leading to 1870?

The decade-by-decade population growth of the United States between 1820 and 1870 is as follows:

1. 1820 – 9,638,453
2. 1830 – 12,866,020 (33.5%)
3. 1840 – 17,069,453 (32.7%)
4. 1850 – 23,191,876 (35.9%)
5. 1860 – 31,443,321 (35.6%
6. 1870 – 38,925,598 (23.8%)

via Wikipedia

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