While it might seem like election season is already in full swing, it’s still only August and the real onslaught won’t begin for a couple more weeks.

Which makes this the perfect time to look at voter registration in California. The data viz below contains a bunch of information about it. Click on the picture to link to an interactive version.

Which counties have a Democratic or Republican registration advantage, and how much of one? Which have the highest concentration of “no party” voters (darker green indicates higher percentage)? Are both major parties losing their shares of the electorate? What are the voter registration numbers in your supervisorial district? The answers are below.

Once you click over to the interactive version, hover your mouse over the maps to see detailed voter registration info for a county. Hover over points on the line graphs for information such as percentage growth from one period to another. Scroll down the bar chart on the right to find your county and your district.

Look for more data viz projects from CSAC in the future on county-by-county issues such as voter turnout, unemployment, and more.