Department of Commerce v. Montana, 503 U.S. 442, 7 (1992)

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448

DEPARTMENT OF COMMERCE v. MONTANA

Opinion of the Court

ceed one for every 30,000 persons; each State shall have at least one Representative; and district boundaries may not cross state lines.14 Although the text of Article I determined the original apportionment that the Framers had agreed upon,15 it did not explain how that specific allocation had been made.

When Congress first confronted the task of apportionment after the census of 1790 (and after Vermont and Kentucky had been admitted to the Union), it considered using the constitutional minimum of 30,000 persons as the size of each district. Dividing that number into the total population of 3,615,920 indicated that the House of Representatives should contain 120 members. When the number 30,000 was divided into the population of individual States, each quotient was a whole number with a fractional remainder. Thus, the use of the 30,000 divisor for Connecticut's population of 236,841 indicated that it should have 7.89 Representatives, while Rhode Island, with a population of 68,446, should have 2.28 Representatives. Because each State must be represented by a whole number of legislators, it was necessary either to disregard fractional remainders entirely or to treat some or all of them as equal to a whole Representative.16

14 The first and second requirements are set forth explicitly in Article I, § 2, of the Constitution. The requirement that districts not cross state borders appears to be implicit in the text and has been recognized by continuous historical practice. See 775 F. Supp., at 1365, n. 4; id., at 1368 (O'Scannlain, J., dissenting).

15 Section 2, cl. 3, required an enumeration of the population to be made within three years after the first meeting of Congress and provided that "until such enumeration shall be made, the State of New Hampshire shall be entitled to chuse three, Massachusetts eight, Rhode-Island and Providence Plantations one, Connecticut five, New-York six, New Jersey four, Pennsylvania eight, Delaware one, Maryland six, Virginia ten, North Carolina five, South Carolina five, and Georgia three."

16 See M. Balinski & H. Young, Fair Representation, Meeting the Ideal of One Man, One Vote 10-13 (1982) (hereinafter Balinski & Young).

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