About 57042 - Madison, South Dakota

The ZIP code 57042 of Madison falls within South Dakota, the United States - a small area by population. It sits within Lake County.

Census data puts the population of this ZIP code at 7,756 residents. That's noticeably above the average for a South Dakota ZIP code, which sits near 2,435 people.

Population density runs around 15 people per sq. mile, making it a rural area.

This ZIP code sits alongside neighboring areas like Sioux Falls, Rapid City within South Dakota.