2003 Primary Note: Calculation of voter turnout is not available until
county administrators complete data entry of election-d
Calculation of voter turnout is not available until county administrators
complete data entry of election-day statistics, including the number of voters
casting ballots in each precinct.
turnout is calculated by dividing the number of people voting by the size
of potential voting population.
The size of the potential
voting is the number of people who are eligible to vote in an election. In Minnesota, there are three ways of
determining the size of the voting population.Each has advantages and disadvantages.
Number of Voters Who Were Registered as of on Election Day.
This is the formula used on
this website, and reflects the number of voters who
"pre-registered" in time to have their names printed on the "rosters,"
the list of voters available in each polling place.
The advantage to this
formula is that it uses precise
numbers of registered voters (not an estimate), which can
be determined and entered into the system before voting begins.
The disadvantage of this
formula is that it does not reflect the number of
voters who registered and voted on Election Day itself.
Number of Voters Who Were Registered on
This is a formula that can
be used after Election Night when Election Day registration information
An advantage to this formula
is that it also uses precise numbers of registered voters (not an
A disadvantage to this
formula is that the precise number cannot be determined until after
Election Night reporting has been completed, and the number of
election-day registrations can be entered into the reporting system.
Another disadvantage to this
formula is that the size of the potential voting population may be
artificially inflated because some voters who were counted as registered
at may have also needed to register on election day to update their registration information.
Percentage of Voting Age Population
This formula is used to
determine what percentage of voters cast ballots from the entire
larger population group that could have registered and cast ballots.
The advantage to this
formula is that it can measure overall participation in the election
process. It includes the number of individuals 18 years of age or older who could have registered to vote, but did not. The
disadvantage to this formula is that the measure of potential voting
population cannot be as precise as the measure of registered voters. For
example, felons and individuals under "guardianship of the
person" are included in this number, even though they cannot in fact
register or vote.
Traditionally, the U.S.
Census Bureau provides a voting age population estimate at the beginning
of each election year.
For more information about Voter Turnout and Voting Age