The House of Representatives has 435 members. The 1960 population figures are for 426 congressional districts for the 90th Congress because nine--2 each from Hawaii and New Mexico, and 1 each from Alaska, Delaware, Nevada, Vermont, and Wyoming--are elected at large.

The 1960 population of the 426 districts ranged from a low of 227,692 for the Third District of Oklahoma to a high of 588,933 for the Twenty-eighth District of California (table 1). Of the 11 districts with 500,000 inhabitants, 5 are found in California and 2 in Oklahoma.

The distribution of the districts by the number of inhabitants in 1960 is as follows:

500,000 or more............ 11
450,000 to 500,000....... 58
400,000 to 450,000..... 196
350,000 to 400,000..... 138
300,000 to 350,000....... 18
Under 300,000................ 5

The percent deviation of each district from the State average population per district appears in table 1. The distribution of the deviations by States is given in table 2. The largest deviations above the State average were for the Fifth District of Oklahoma (42.5 percent) and for the Twenty-eighth District of California (42.4 percent). The largest deviation below the State average was 41.3 percent, for the Third District of Oklahoma.

For the 90th Congress, 24 States redistricted all or some of their districts. These States are identified in table 1 by an asterisk preceding the State name. In addition, the transfer of a town from one county to another in Rhode Island resulted in a minor modification in the districts in that State.

The PDF to the right contains the 12-page report.