What is 'district leader' in politics?

Some counties in certain states have "District Leaders"
are members of a political party who have been elected to this internal office by their committee.. It is strictly a Party position, not a public office. They are in charge of their district.

A District Leader’s [DL] function is to “get out the vote.” Before a party primary, general election, or referendum, DLs use various techniques to reach the voters. Most Village, Town, County, State and U.S. candidates will need petitions signed by their constituents. DLs will carry these and get signatures.

it is a low level position within a political organization