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Background • Federal Census Summary • State Map with County Boundaries • Counties • Links to State Resources Background
Most of present-day Alabama was part of Georgia until the south-central part was included in Mississippi Territory, whose establishment was authorized by Congress in 1798 and agreed to by Georgia in 1802. In 1804, Mississippi Territory was expanded to include the rest of Alabama except for the Gulf Coast portion, which was added in 1812 although still in dispute with Spain until 1819. Alabama became a territory in 1817, and was admitted as a State on December 14, 1819 with substantially its present boundaries.
| Capital: Montgomery | Total Area: 52,419 sq mi | ||
| Latitude: 30°13'N to 35°N | Longitude: 84°51'W to 88°28'W | ||
| Last Significant Boundary Change: 1820 | |||
Census coverage of Alabama began in 1800, included much of the State by 1820, and added the rest by 1840. The totals for 1800 and 1810 are for areas then in Mississippi Territory. In 1820 the official State total (127,901) did not include the population (16,416) of three counties whose census returns only arrived in Washington in 1822.
| 1790: --- | 1800: 1,250 | 1810: 9,046 | 1820: 127,901 |
| 1830: 309,527 | 1840: 590,756 | 1850: 771,623 | 1860: 964,201 |
| 1870: 996,992 | 1880: 1,262,505 | 1890: 1,513,401 | 1900: 1,828,697 |
| 1910: 2,138,093 | 1920: 2,348,174 | 1930: 2,646,248 | 1940: 2,832,961 |
| 1950: 3,061,743 | 1960: 3,266,740 | 1970: 3,444,165 | 1980: 3,893,888 |
| 1990: 4,040,587 | 2000: 4,447,100 |