This is the Ohio congressional district map that is to be used for the 2012 election.

Use the zoom tool on this interactive map to see district borders in detail, including right down to the street level. Click on areas of the map for each district number.

Also:

Ohio House and Ohio Senate districts for 2012-20

Version 1: Congressional map passed in September 2011 and later replaced

Version 2: Congressional map proposed in November 2011 but never approved

See how 2002 redistricting map paid off for the Republicans

This map was approved by the Ohio General Assembly on Dec. 14.

As a result of the 2010 Census, which revealed Ohio's share of the national population is smaller, the state's congressional district map had to be redrawn to reduce the number of districts from 18 to 16.

By law, the process is done with the approval of the Ohio House, the Ohio Senate and the governor.

The Republican Party controls the governor's office and has the majority in both chambers of the Statehouse. This marked just the second time in the last 60 years that one party controlled all three steps in the process.

After the first time, following Census 2000, the Republicans went on in the next five elections to win a higher percentage of the races - 62 percent - than they had in decades while collecting a smaller percentage of the overall head-to-head vote against Democrats - 51 percent - than had been the case in the 10 years leading up to the changes.