The first population data from the 2010 Census data has been released which provides population by state data. This data is critical to the apportionment process, where the 435 seats within the United State House of Representatives are divided among the 50 states to provide equal representation, based on population. Based upon the 2010 Census Population data, the following map generated by the US Census Bureau provides a national picture of the number of congressional seats gained, lost, or unchanged for each state.
Connecticut Data
Based upon the 2010 Census data released on December 21, 2010, Connecticut’s population as of April 1, 2010 was 3,574,097 an increase of 4.9% from April 1, 2000 (3,405,565). Utilizing this data, the number of representatives for Connecticut in the House of Representatives will remain steady at 5 representatives.
National Data Highlights
While the number of representatives from Connecticut will remain steady, other states will experience gains/losses in the number of representatives provided by their state in the House of Representatives. Included below is a quick listing of states that gained and lost seats:
| State | Seats | State | Seats |
|---|---|---|---|
| Arizona | +1 | Illinois | -1 |
| Florida | +2 | Iowa | -1 |
| Georgia | +1 | Louisiana | -1 |
| Nevada | +1 | Massachusetts | -1 |
| South Carolina | +1 | Michigan | -1 |
| Texas | +4 | Missouri | -1 |
| Utah | +1 | New Jersey | -1 |
| Washington | +1 | New York | -2 |
| Ohio | -2 | ||
| Pennsylvania | -1 |
To view each dataset released on December 21, 2010 by the United States Census Bureau click the following links:
Table 1. Apportionment Population and Number of Representatives, by State: 2010 Census [ Excel | PDF ]
Table 2. Resident Population of the 50 States, the District of Columbia, and Puerto Rico: 2010 Census [ Excel| PDF ]
Table 3. Overseas Population of the 50 States and the District of Columbia: 2010 Census [ Excel | PDF ]
Table 4: Resident Population of the 50 States, the District of Columbia, and Puerto Rico: 2010 Census and Census 2000 [ Excel | PDF ]
Table 5: Resident Population of the 50 States, the District of Columbia, and Puerto Rico: 2010 Census and Census 2000 [ Excel | PDF ]
Table 2. Resident Population of the 50 States, the District of Columbia, and Puerto Rico: 2010 Census [ Excel| PDF ]
Table 3. Overseas Population of the 50 States and the District of Columbia: 2010 Census [ Excel | PDF ]
Table 4: Resident Population of the 50 States, the District of Columbia, and Puerto Rico: 2010 Census and Census 2000 [ Excel | PDF ]
Table 5: Resident Population of the 50 States, the District of Columbia, and Puerto Rico: 2010 Census and Census 2000 [ Excel | PDF ]
Map 1: Apportionment of the U.S. House of Representatives Based on the 2010 Census [PDF]
Map 2: Numeric Change in Resident Population for the 50 States, the District of Columbia, and Puerto Rico: 2000 to 2010 [PDF]
Map 3: Percent Change in Resident Population for the 50 States, the District of Columbia, and Puerto Rico: 2000 to 2010 [PDF]
Map 2: Numeric Change in Resident Population for the 50 States, the District of Columbia, and Puerto Rico: 2000 to 2010 [PDF]
Map 3: Percent Change in Resident Population for the 50 States, the District of Columbia, and Puerto Rico: 2000 to 2010 [PDF]
What is Apportionment?
To learn more about the apportionment process, view the following video produced by the U.S. Census bureau:
Want to learn more about how the population has changed by state over time? The following interactive map includes population change, population density, and apportionment data from 1910 to 2010 by state. This interactive map provides a streamlined visualization of changes in population distribution throughout the United States over time.