Note to the Voter: Remember that you are the HR person choosing who is best qualified to be a US House Representative. Check out the Candidate's educational background, their work history, and Community Service. If it is an Incumbent (in office now and trying to get reelected) check their voting record. Very important. Did they vote the way they promised they would on their platform? Did they vote with their party or against it? Did the author or coauthor any bills? Which candidate is best qualified over all and lines up with your beliefs? That is who you should vote for. Find out more about them on their media pages and on https://www.house.gov/representatives.

About the Office: 

Members in the House are called representatives. The population of each state determines how many representatives they will have but is entitled to at least one representative. There are currently 435 representatives, a number fixed by law since 1911. The new census data should change this through redistricting. Each representative serves for a two-year term. There are no term limits. As of the 2020 Census, Texas representatives represented an average of 766,986 residents.

"Clause 1 : The House of Representatives shall be composed of Members chosen every second Year by the People of the several States, and the Electors in each State shall have the Qualifications requisite for Electors of the most numerous Branch of the State Legislature.
Clause 2 : No Person shall be a Representative who shall not have attained to the Age of twenty five Years, and been seven Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State in which he shall be chosen.
Clause 3 : Representatives and direct Taxes shall be apportioned among the several States which may be included within this Union, according to their respective Numbers, which shall be determined by adding to the whole Number of free Persons, including those bound to Service for a Term of Years, and excluding Indians not taxed, three fifths of all other Persons. The actual Enumeration shall be made within three Years after the first Meeting of the Congress of the United States, and within every subsequent Term of ten Years, in such Manner as they shall by Law direct. The Number of Representatives shall not exceed one for every thirty Thousand, but each State shall have at Least one Representative; and 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.
Clause 4: When vacancies happen in the Representation from any State, the Executive Authority thereof shall issue Writs of Election to fill such Vacancies.
Clause 5: The House of Representatives shall choose their Speaker and other Officers; and shall have the sole Power of Impeachment.”

—The U.S. Constitution, Article 1, Section 2

Non-Voting Members:

Besides the representative from each state, there are a small number of delegates and a resident commission.

• Delegates are representatives from Washington D.C., as well as American Samoa, Guam, The Commonwealth of the Northern Mariana Islands, and the Virgin Islands. Delegates are able to perform many of the functions of a full representative, such as serve on committees. However, they are not able to vote during business such as the committee of the whole or on final passage of legislation. Delegates serve two-year terms.

• The resident commissioner's functions are similar to the delegates, but the title is specifically for a representative from Puerto Rico. The resident commissioner serves a four-year term. The Philippines also had a resident commissioner before it became independent from the U.S. in 1946.

Qualifications:

Must be at least 25 years old,

a US citizen for at least seven years,

and a resident of the state he or she represents.

Leadership:

There are several important leadership positions in the House of Representatives. 

• Speaker of the House: The speaker is the presiding officer elected by the members of the House. The speaker administers the Oath of Office to House members; chairs and nominates chairs to certain committees; and appoints select members of various committees and House staff.

• Majority and Minority Leaders: The party with the most members elects the majority leader and the other party elects a minority leader. The majority leader customarily schedules legislative business on the House floor, while the minority leader serves as a spokesperson for the minority party. The two leaders are selected at their respective party conference or caucus.

• Majority and Minority Whips: Each party also elects a whip who acts as a middleman for communication between party leaders and members of the caucus. The parties will also often create other similar positions to help with various communication duties.

Source:https://ballotpedia.org/United_States_House_of_Representatives; https://www.house.gov/the-house-explained; Redistricted CD 2002 Plan C2193.pdf