The United States House of Representatives has 435 members. The number of seats allocated to each state is determined by a state's population. The 119th Congress was sworn-in in January 2025, with the Republicans holding a majority with 220 seats. In this year, the Republican Party was in control of the Senate, House of Representatives, and the Presidency.

There are 435 seats in the U.S. House of Representatives, of which ** are allocated to the state of California. Seats in the House are allocated based on the population of each state. To ensure proportional and dynamic representation, congressional apportionment is reevaluated every 10 years based on census population data. After the 2020 census, six states gained a seat - Colorado, Florida, Montana, North Carolina, and Oregon. The states of California, Illinois, Michigan, New York, Ohio, Pennsylvania, and West Virginia lost a seat.

Over one week after the election, the Republicans had won *** seats in the United States House of Representatives during the 2024 election, securing their majority. As of November 25, three seats remained uncalled. Parties need to earn *** seats in the House of Representatives in order to claim a majority.

This dataset contains variables describing congressional service and selected biographical characteristics for each person who has served in the United States Congress. This release of the data includes members of the 104th Congress. Approximately 11,455 individuals are represented in this file, each identified by a unique five-digit identification number. A data record exists for every Congress in which an individual served, as well as for each chamber in which a person may have served in a given Congress. To illustrate, a member of the House of Representatives who is appointed to fill a vacancy in the Senate during a term of service will have two data records for that Congress. The congressional service variables include political party affiliation, district, state and region represented, and exact and cumulative dates of service in each Congress and each chamber, as well as total congressional service. The biographical variables cover state and region of birth, education, military service, occupation, other political offices held, relatives who also have held congressional office, reason for leaving each Congress, and occupation and political offices held subsequent to service in Congress. Many of these specific variables are summarized in a collapsed variable.

This study contains selected electoral and aggregate economic, ecological, and demographic data at the congressional district level for districts of the 87th and 88th Congresses in the period 1961-1965. Data are provided for the number of votes cast for the Democratic and the Republican parties, and the percentage of votes cast for the majority party in the biennial elections for United States Representatives in the period 1952-1962, as well as the total votes cast for the office of president, and the number of votes cast for each party's presidential candidate in the 1952, 1956, and 1960 election. Data are also provided for population and housing characteristics, including total population by household, group quarters, institutions, age group, gender, marital status, race, nationality, and urban and rural residency. Additional demographic variables describe the congressional districts in terms of education, income, employment status and occupation, veteran status, births, deaths, and marriages.

This study contains aggregate socioeconomic and demographic data as well as electoral returns for the offices of the United States President and United States Representatives for the elections of 1966-1970 for the congressional districts of the 93rd Congress. Data are provided for the number of votes cast for the Democratic candidates and the Republican candidates, the percentage of votes received by the winning party, and the total number of votes cast in the 1966, 1968, and 1970 elections for United States Representatives, as well as the total votes cast for the office of president, and the number of votes cast for each party's presidential candidate in the 1968 election. Information is also provided on housing characteristics, employment, income, poverty level, and military enrollment for the 93rd congressional districts. Demographic variables provide information on age, race, sex, marital status, education, and place of birth for the population of these congressional districts. In addition to the congressional district level, data aggregated to the state level are also available.

There are *** members that serve in the United States House of Representatives at any given time. As of the first day of the 119th Congress, there were a total of *** female Representatives. Of those, ** were Republicans.

This dataset contains variables describing congressional service and selected biographical characteristics for each person who has served in the United States Congress. This release of the data includes members of the 104th Congress. Approximately 11,455 individuals are represented in this file, each identified by a unique five-digit identification number. A data record exists for every Congress in which an individual served, as well as for each chamber in which a person may have served in a given Congress. To illustrate, a member of the House of Representatives who is appointed to fill a vacancy in the Senate during a term of service will have two data records for that Congress. The congressional service variables include political party affiliation, district, state and region represented, and exact and cumulative dates of service in each Congress and each chamber, as well as total congressional service. The biographical variables cover state and region of birth, education, military service, occupation, other political offices held, relatives who also have held congressional office, reason for leaving each Congress, and occupation and political offices held subsequent to service in Congress. Many of these specific variables are summarized in a collapsed variable.

This study is a 40-year time series of social, economic, and political indicators at the national level for the United States in the period 1929-1968. The variables include data on expenditures from the federal budget by various departments, agencies, and commissions, the number of employees in the various United States departments, measures of the political characteristics of the United States Congress, such as the number of Repuplicans, Democrats, and "other" party members in the United States Senate and in the House of Representatives, business and consumer expenditures, and attributes of the population. Data are also provided on the number per 1,000 of immigrants to the United States, membership of all the religious bodies in the United States, labor union membership, total households in the United States, total civilian labor force, and the number of the unemployed. Demographic variables provide information on education, births, and death rates. The unit of analysis is the year. Variables 2-281 cover the period from 1929-1968 and Variables 282-408 cover only the period from 1947-1968.

1 Note: These likelihoods can also be defined as expectations as described in [34].Summary Statistics of Congressional Representatives and Voting Records.

The United States Senate is the upper chamber of the country's legislative body. It is made up of 100 Senators, two from each state. Senators serve six-year terms, but elections are staggered. In any given election year, one third of the Senate will be up for reelection. The 119th Congress was sworn-in in January 2025 with a Republican majority.

This data collection contains information on the opinions of United States congressmen and women on their roles in Congress, the roles and functions of Congress, congressional organizations and procedures, and the problems and effectiveness of Congress. Three general types of respondents were interviewed: general, leader, and top leader respondents. Respondents were asked about their position on various proposals for congressional reorganization, such as the use of electronic voting devices, four-year terms of office, and year-long congressional sessions, and their opinions on the likelihood of these proposals being adopted. Other items probed their views on issues such as the protection of minority interests, party bloc vote, moral-based decisions, rule of the majority, equality of Congress and the Executive branch, party compromise, degree of influence of lobbyists, and pressing congressional problems. Demographic items specify age, occupation, education, previous political experience, political party affiliation, length of service in Congress, congressional leadership position, ranks, and committee membership and functions, as well as voting records, constituency characteristics by region and district, percentage of total party unity votes, conservative coalition support, and bipartisan support.

In the 119th Congress which began in January 2025, almost ** percent of members of the House of Representatives were between the ages of ** and ** in 2025- more than any other age group.

Dave Leip's election atlas data; available to UT faculty, students and staff; requires valid login with UTor ID. House election results data includes tabs for State, County, Town, Congressional District, Graphs, Party, Statistics, Candidates, Notes, Data sources and updates

This data release is composed of tables from a database of United States Congressional statistics spanning the time period 1789 through 1989. The sources of the data were studies in the ICPSR collection and other historical texts and studies. There are eleven data files in total, including two additional tables that have been added since the first release. Some files contain records for additional Congresses. The rows in the various files describe different entities. For example, in the Votes Table file, each row contains a record of a vote by a particular member on a particular roll call vote. The Member Table file contains a record for each member of Congress, while the Serves Table file contains a record for each member for every Congress in which he or she served. See the descriptions of each file in the codebook for details about its contents. The data from the various files can be combined by matching the fields that they have in common. Cross-file searches should be conducted using the Member_ID field. However, not every file has the Member_ID field. In those cases, an alternative common field should be used.

The 119th Congress began in January 2025. In this Congress Republicans have majority control of the chamber, holding 53 seats with the two independent Senators from Maine and Vermont joining their legislative caucus.

Data from Dave Leip's atlas of U.S. presidential elections separated by Congressional District. For use by University of Toronto students, staff, and faculty only. Requires UTORid login. Files with State abbreviation in name are presented by: congressional district, legislative district, region and precinct. Also includes tab for update log. Files with no State abbreviation in the title provide tabs for data by state, county, town, party. Also includes graphs, information on candidates, statistics, ballots, notes, data sources and update log.

(V1, superseded by new version, doi:doi:10.7294/bxxk-fn22) General election results and geospatial data for the Senate and House of Representatives for the 27th-115th U.S. Congresses. This dataset is a continuation of the Mapping Congress dataset which contains the general election results and geospatial data for the Senate and House of Representatives for the 22nd-52nd U.S. Congresses. In collaboration with members of the Richmond Digital Scholarship Lab, Robert K. Nelson and Justin Madron, LaDale Winling has made available the newest version of this collection via the 'Electing the House of Representatives' website.

The downloadable ZIP file contains Esri shapefiles and PDF maps. Contains the information used to determine the location of the new legislative and congressional district boundaries for the state of Idaho as adopted by Idaho's first Commission on Redistricting on March 9, 2002. Contains viewable and printable legislative and congressional district maps, viewable and printable reports, and importable geographic data files.These data were contributed to INSIDE Idaho at the University of Idaho Library in 2001. CD/DVD -ROM availability: https://alliance-primo.hosted.exlibrisgroup.com/permalink/f/m1uotc/CP71156191150001451These files were created by a six-person, by-partisan commission, consisting of six commission members, three democrats and three republicans. This commission was given 90 days to redraw congressional and legislative district boundaries for the state of Idaho. Due to lawsuits, the process was extended. This legislative plan was approved by the commission on March 9th, 2002 and was previously called L97. All digital data originates from TIGER/Line files and 2000 U.S. Census data.Frequently asked questions:How often are Idaho's legislative and congressional districts redrawn? Once every ten years after each census, as required by law, or when directed by the Idaho Supreme Court. The most recent redistricting followed the 2000 census. Redistricting is not expected to occur again in Idaho until after the 2010 census. Who redrew Idaho's legislative and congressional districts? In 2001, for the first time, Idaho used a citizens' commission to redraw its legislative and congressional district boundaries. Before Idaho voters amended the state Constitution in 1994 to create a Redistricting Commission, redistricting was done by a committee of the Idaho Legislature. The committee's new district plans then had to pass the Legislature before becoming law. Who was on the Redistricting Commission? Idaho's first Commission on Redistricting was composed of Co-Chairmen Kristi Sellers of Chubbuck and Tom Stuart of Boise and Stanley. The other four members were Raymond Givens of Coeur d'Alene, Dean Haagenson of Hayden Lake, Karl Shurtliff of Boise, John Hepworth of Buhl (who resigned effective December 4, 2001), and Derlin Taylor of Burley (who was appointed to replace Mr. Hepworth). What are the requirements for being a Redistricting Commissioner? According to Idaho Law, no person may serve on the commission who: 1. Is not a registered voter of the state at the time of selection; or 2. Is or has been within one (1) year a registered lobbyist; or 3. Is or has been within two (2) years prior to selection an elected official or elected legislative district, county or state party officer. (This requirement does not apply to precinct committeepersons.) The individual appointing authorities may consider additional criteria beyond these statutory requirements. Idaho law also prohibits a person who has served on the Redistricting Commission from serving in either house of the legislature for five years following their service on the commission. When did Idaho's first Commission on Redistricting meet? Idaho law allows the Commission only 90 days to conduct its business. The Redistricting Commission was formed on June 5, 2001. Its 90-day time period would expire on September 3, 2001. After holding hearings around the state in June and July, a majority of the Commission voted to adopt new legislative and congressional districts on August 22, 2001. On November 29th, the Idaho Supreme Court ruled the Commission's legislative redistricting plan unconstitutional and directed them to reconvene and adopt an alternative plan. The Commission did so, adopting a new plan on January 8, 2000. The Idaho Supreme Court found the Commission's second legislative map unconstitutional on March 1, 2002 and ordered the Commission to try again. The Commission adopted a third plan on March 9, 2002. The Supreme Court denied numerous challenges to this third map. It then became the basis for the 2002 primary and General elections and is expected to be used until the 2012 elections. What is the basic timetable for Idaho to redraw its legislative and congressional districts?Typically, and according to Idaho law, the Redistricting Commission cannot be formally convened until after Idaho has received the official census counts and not before June 1 of a year ending in one. Idaho's first Commission on redistricting was officially created on June 5, 2001. By law, a Commission then has 90 days (or until September 3, 2001 in the case of Idaho's first Commission) to approve new legislative and congressional district boundaries based on the most recent census figures. If at least four of the six commissioners fail to approve new legislative and congressional district plans before that 90-day time period expires, the Commission will cease to exist. The law is silent as to what happens next. Could you summarize the important dates for Idaho's first Commission on Redistricting one more time please? After January 1, 2001 but before April 1, 2001: As required by federal law, the Census Bureau must deliver to the states the small area population counts upon which redistricting is based. The Census Bureau determines the exact date within this window when Idaho will get its population figures. Idaho's were delivered on March 23, 2001. Why conduct a census anyway? The original and still primary reason for conducting a national census every ten years is to determine how the 435 seats in the United States House of Representatives are to be apportioned among the 50 states. Each state receives its share of the 435 seats in the U.S. House based on the proportion of its population to that of the total U.S. population. For example, the population shifts during the 1990's resulted in the Northeastern states losing population and therefore seats in Congress to the Southern and the Western states. What is reapportionment? Reapportionment is a federal issue that applies only to Congress. It is the process of dividing up the 435 seats in the U.S. House of Representatives among the 50 states based on each state's proportion of the total U.S. population as determined by the most recent census. Apportionment determines the each state's power, as expressed by the size of their congressional delegation, in Congress and, through the electoral college, directly affects the selection of the president (each state's number of votes in the electoral college equals the number of its representatives and senators in Congress). Like all states, Idaho has two U.S. senators. Based on our 1990 population of 1,006,000 people and our 2000 population of 1,293,953, and relative to the populations of the other 49 states, Idaho will have two seats in the U.S. House of Representatives. Even with the state's 28.5% population increase from 1990 to 2000, Idaho will not be getting a third seat in the U.S. House of Representatives. Assuming Idaho keeps growing at the same rate it did through the decade of the 1990's, it will likely be 30 or 40 years (after 3 or 4 more censuses) before Idaho gets a third congressional seat. What is redistricting? Redistricting is the process of redrawing the boundaries of legislative and congressional districts within each state to achieve population equality among all congressional districts and among all legislative districts. The U.S. Constitution requires this be done for all congressional districts after each decennial census. The Idaho Constitution also requires that this be done for all legislative districts after each census. The democratic principle behind redistricting is "one person, one vote." Requiring that districts be of equal population ensures that every elected state legislator or U.S. congressman represents very close to the same number of people in that state, therefore, each citizen's vote will carry the same weight. How are reapportionment and redistricting related to the census? The original and still primary reason for conducting a census every ten years is to apportion the (now) 435 seats in the U.S. House of Representatives among the several states. The census records population changes and is the legally recognized basis for redrawing electoral districts of equal population. Why is redistricting so important? In a democracy, it is important for all citizens to have equal representation. The political parties also see redistricting as an opportunity to draw districts that favor electing their members and, conversely, that are unfavorable for electing their political opposition. (It's for this reason that redistricting has been described as "the purest form of political bloodsport.") What is PL 94-171? Public Law (PL) 94-171 (Title 13, United States Code) was enacted by Congress in 1975. It was intended to provide state legislatures with small-area census population totals for use in redistricting. The law's origins lie with the "one person, one vote" court decisions in the 1960's. State legislatures needed to reconcile Census Bureau's small geographic area boundaries with voting tabulation districts (precincts) boundaries to create legislative districts with balanced populations. The Census Bureau worked with state legislatures and others to meet this need beginning with the 1980 census. The resulting Public Law 94-171 allows states to work voluntarily with the Census Bureau to match voting district boundaries with small-area census boundaries. With this done, the Bureau can report to those participating states the census population totals broken down by major race group and Hispanic origin for the total population and for persons aged 18 years and older for each census subdivision. Idaho participated in the Bureau's Census 2000 Redistricting Data Program and, where counties used visible features to delineate precinct boundaries, matched those boundaries with census reporting areas. In those instances where counties did not use visible features to