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Apportionment Act of 1929

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Apportionment Act of 1929
ShorttitleApportionment Act of 1929
OthershorttitlesPermanent Apportionment Act of 1929
LongtitleAn Act To provide for the fifteenth and subsequent decennial censuses and to provide for apportionment of Representatives in Congress.
Enacted bythe 71st United States Congress
Effective dateJune 18, 1929
Cite public law71-13
Cite statutes at large46, 21
IntroducedinHouse
IntroducedbillH.R. 11725
IntroducedbyEdgar R. Kiess (RPA)
IntroduceddateApril 18, 1929
CommitteesHouse Census Committee
Passedbody1House
Passeddate1May 9, 1929
Passedvote1Passed
Passedbody2Senate
Passeddate2June 5, 1929
Passedvote2Passed
Passedbody5House
Passeddate5June 11, 1929
Passedvote5Agreed
Passedbody6Senate
Passeddate6June 11, 1929
Passedvote6Agreed
AmendmentsReapportionment Act of 1929

Apportionment Act of 1929 fundamentally reformed the process for distributing House of Representatives seats among the states following each decennial census. Enacted by the 71st United States Congress and signed by President Herbert Hoover, the legislation established a permanent, automatic method for reapportionment, fixing the total size of the House at 435 members. This act resolved recurring political conflicts that had stalled reapportionment after the 1920 United States Census and has defined the structure of the lower congressional chamber for nearly a century.

Background and legislative history

The immediate catalyst for the act was the failure to reapportion congressional districts after the 1920 United States Census, marking the first time in U.S. history a decade passed without a redistribution of seats. This stalemate was driven by intense political rivalry between rural and urban states, concerns over the First Red Scare, and disputes between the Republican and Democratic parties about which mathematical formula to use. Previous apportionment acts, like the Apportionment Act of 1911, had specified both the House size and a particular divisor method. Legislative efforts, including a bill vetoed by President Calvin Coolidge, failed until Representative Edgar R. Kiess introduced the final version. It passed with bipartisan support and was signed into law by President Herbert Hoover on June 18, 1929.

Provisions of the act

The act's key provisions automated the reapportionment process. It mandated that the President transmit to Congress a statement showing the apportionment of Representatives based on each new census, calculated using the equal proportions method unless Congress passed a new law specifying another formula. Critically, it permanently set the total number of House seats at 435, a cap first used after the 1910 United States Census. The act also transferred the responsibility for defining specific district boundaries entirely to the individual state legislatures, requiring only that districts be composed of contiguous and compact territory and contain as nearly as practicable an equal number of inhabitants.

Impact on congressional apportionment

The act was first applied to the results of the 1930 United States Census, leading to significant shifts in political power that reflected the ongoing Great Migration and national population trends. States in the growing West and industrial Midwest, such as California and Michigan, generally gained seats, while many rural states in the Northeast and Great Plains lost representation. This cemented the 435-seat House, preventing the chamber from becoming unwieldy but also freezing a distribution that has increasingly diverged from the ideal of proportional representation as the nation's population has grown.

Subsequent developments and legacy

While the 435-seat cap has remained, subsequent legislation and court rulings have modified the act's framework. The Reapportionment Act of 1941 formally codified the use of the equal proportions formula and established the automatic procedure still in use today. Landmark Supreme Court decisions, notably Baker v. Carr (1962) and Wesberry v. Sanders (1964), enforced the "one person, one vote" standard for congressional districts, imposing stricter equality requirements than the original act. The permanent cap is a frequent subject of debate, with critics arguing it dilutes representation and proposals like the Wyoming Rule seeking to enlarge the House.

Legal scholars often analyze the act as a critical delegation of power from Congress to an automatic mathematical process, reducing partisan conflict over the decennial seat total. Politically, it represents a grand compromise that traded a fixed House size for automatic reapportionment, profoundly shaping the Electoral College and the balance of federal power. The delegation of districting authority to states, however, coupled with the cap, has contributed to issues like gerrymandering and significant population disparities between the largest and smallest districts, raising ongoing constitutional questions about representation in the United States Capitol.

Category:1929 in American law Category:United States federal apportionment legislation Category:71st United States Congress