The following map shows the current party breakdown of the United States House of Representatives from each state. States colored red have more Republican representatives in the House than Democratic representatives. States colored blue have more Democratic representatives in the House than Republican representatives. The current breakdown of state delegations is that there are 16 states have a Republican majority in their delegation, 33 states have a Democratic majority in their delegation, and 1 state (Idaho) has an even split between both parties. Some states (7 states) only have 1 representative, those states are the following:
States with only 1 House member
Alaska (Republican)
Montana (Republican)
Wyoming (Republican)
North Dakota (Democrat)
South Dakota (Democrat)
Delaware (Republican)
Vermont (Democrat)
Analysis
This map is slightly deceiving because of the 7 states that only have 1 House member each. Although even those 7 states are interesting in that North and South Dakota are both represented by a Democrat, which is notable because neither of these states have been competitive in Presidential elections (with the exception of 2008). It is also notable that Delaware is represented by a Republican, when the surrounding area is primarily represented by Democrats. Of the states that have more than 1 house member, there are not very many surprises in the map, however there are some. One of those surprises is Mississippi, which is the only state in the deep south (besides Arkansas, which has a long history of a strong Democratic party) that has a majority Democratic delegation. While MS only has 4 representatives, the fact that 3 of them are Democrats is quite an achievement. It may be striking for some that Arkansas and Tennessee are colored blue, but it is important to point out that most of the Democrats in the south are moderate Democrats, which is why they are able to represent such conservative areas.