Apportionment Act of 1911

The Apportionment Act of 1911 (Pub.L. 62–5, 37 Stat. 13) was an apportionment bill passed by the United States Congress on August 8, 1911. The law initially set the number of members of the United States House of Representatives at 433, effective with the 63rd Congress on March 4, 1913.[1] It also included, in section 2, a provision to add an additional seat for each of the anticipated new states of Arizona and New Mexico (which happened in 1912), bringing the total number of seats to 435.[1]

Apportionment Act of 1911
Long titleAn Act For the apportionment of Representatives in Congress among the several States under the Thirteenth Census.
NicknamesApportionment Act of 1911,
Public Law 62-5
Enacted bythe 62nd United States Congress
EffectiveMarch 4, 1913
Public lawPub.L. 62–5
Statutes at Large37 Stat. 13
Acts amendedApportionment Act of 1901
Titles amended2
U.S.C. sections amended2 USC §2a
Legislative history
  • Introduced in the House as H.R. 2983
  • Passed the House on  
  • Passed the Senate on August 8, 1911 
  • Signed into law by President William Howard Taft on
Major amendments
Reapportionment Act of 1929
United States Supreme Court cases
Wood v. Broom, 287 U.S. 1 (1932)
Connor v. Johnson, 402 U.S. 690 (1966)
Department of Commerce v. Montana, 503 U.S. 442 (1992)

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