The maps of the United States census, giving the distribution of population in 1810, 1820, and 1830, [Footnote: See maps of population; compare U. S. Census of 1900, Statistical Atlas, plates 4, 5, 6.] exhibit clearly the effects of the defeat of the Indians, and show the areas that were occupied in these years. In 1810 settlement beyond the mountains was almost limited to a zone along the Ohio River and its tributaries, the Cumberland and the Tennessee. In the southwest, the vicinity of Mobile showed sparse settlement, chiefly survivals of the Spanish and English occupation; and, along the fluvial lands of the eastern bank of the lower Mississippi, in the Natchez region, as well as in the old province of Louisiana, there was a considerable area occupied by planters.
By 1820 the effects of the War of 1812 and the rising tide of westward migration became manifest. Pioneers spread along the river-courses of the northwest well up to the Indian boundary. The zone of settlement along the Ohio ascended the Missouri, in the rush to the Boone's Lick country, towards the center of the present state. From the settlements of middle Tennessee a pioneer farming area reached southward to connect with the settlements of Mobile, and the latter became conterminous with those of the lower Mississippi.
By 1830 large portions of these Indian lands, which were ceded between 1817 and 1829, received the same type of colonization. The unoccupied lands in Indiana and Illinois were prairie country, then deemed unsuited for settlement because of the lack of wood and drinking-water. It was the hardwoods that had been taken up in the northwest, and, for the most part, the tracts a little back from the unhealthful bottom-lands, but in close proximity to the rivers, which were the only means of transportation before the building of good roads. A new island of settlement appeared in the northwestern portion of Illinois and the adjacent regions of Wisconsin and Iowa, due to the opening of the lead-mines. Along the Missouri Valley and in the Gulf region the areas possessed in 1820 increased in density of population. Georgia spread her settlers into the Indian lands, which she had so recently secured by threatening a rupture with the United States. [Footnote: MacDonald, Jacksonian Democracy (Am. Nation, XV.), chap. x. ]
Translated into terms of human activity, these shaded areas, encroaching on the blank spaces of the map, meant much for the history of the United States. Even in the northwest, which we shall first describe, they represent, in the main, the migration of southern people. New England, after the distress following the War of 1812 and the hard winter of 1816-1817, had sent many settlers into western New York and Ohio; the Western Reserve had increased in population by the immigration, of Connecticut people; Pennsylvania and New Jersey had sent colonists to southern and central Ohio, with Cincinnati as the commercial center. In Ohio the settlers of middle-state origin were decidedly more numerous than those from the south, and New England's share was distinctly smaller than that of the south. In the Ohio legislature in 1822 there were thirty-eight members of middle-state birth, thirty-three of southern (including Kentucky), and twenty-five of New England. But Kentucky and Tennessee (now sufficiently settled to need larger and cheaper farms for the rising generation), together with the up-country of the south, contributed the mass of the pioneer colonists to most of the Mississippi Valley prior to 1830. [Footnote: See, for Ohio, Niles' Register, XXI., 368 (leg. session of 1822), and Nat. Republican, January 2, 1824; for Illinois in 1833, Western Monthly Magazine, I., 199; for Missouri convention of 1820, Niles' Register, XVIII., 400; for Alabama in 1820, ibid., XX., 64. Local histories, travels, newspapers, and the census of 1850 support the text.] Of course, a large fraction of these came from the Scotch-Irish and German stock that in the first half of the eighteenth century passed from Pennsylvania along the Great Valley to the up-country of the south. Indiana, so late as 1850, showed but ten thousand natives of New England, and twice as many persons of southern as of middle states origin. In the history of Indiana, North Carolina contributed a large fraction of the population, giving to it its "Hoosier" as well as much of its Quaker stock. Illinois in this period had but a sprinkling of New-Englanders, engaged in business in the little towns. The southern stock, including settlers from Kentucky and Tennessee, was the preponderant class. The Illinois legislature for 1833 contained fifty-eight from the south (including Kentucky and Tennessee), nineteen from the middle states, and only four from New England. Missouri's population was chiefly Kentuckians and Tennesseeans.