But it also should be in your bank account, because if you're planning on getting married, the average cost of a wedding has just hit its highest amount ever. Get our free mobile appThe survey noted that on average, couples in 2025 were engaged for around 14 months before ultimately walking down the aisle. The Average Minnesota Wedding Now Costs More Than EverThe Knot survey noted that the average wedding here in Minnesota in 2019 cost $28,000. The Knot says that the average wedding here in Minnesota and across the country last year (the most recent year they collected data on) was a whopping $34,200! Why Wedding Costs Keep Rising in MinnesotaSo, in just six years, while the average number of guests and the number of those in the wedding party decreased, the average cost per guest jumped nearly 80 dollars per person!