Christopher K. Baumann had a blood alcohol level of 0.232 percent when he crashed into the back of the horse-drawn vehicle on Highway 92 near Clearbrook Saturday night, charges say.
The crash killed buggy passenger Elsie Yoder, 23, and injured her 27-year-old brother, Mervin Yoder.
The horse pulling the buggy broke two of its legs in the crash and had to be put down, charges add.
Baumann admitted to police that he's the one who hit the horse-drawn buggy, adding he didn't see it until it was too late, the complaint says.
Baumann was charged Monday with criminal vehicular homicide and criminal vehicular operation in connection to the crash.
Amish in Minnesota
According to the website Amish America, there are more than 3,000 Amish living in Minnesota, spread out among 14 different settlements.
And this isn't the first time a vehicle-buggy crash has happened in Minnesota this year.
There have been at least two other incidents, both in Todd County (where there are five Amish communities). In July, two buggy riders were hurt when an SUV failed to yield to them, and then in August four people were injured in a crash.
Nationally, there have been at least 65 vehicle-buggy crashes this year, killing at least six people, according to Mission to Amish People.