| Date | Event |
| May 2012 |
| 1st 8:30AM | Madison Radio Shack/2nd Closet Consignment Open House 123 N. Egan Ave. |
| 1st 9:00AM | Lake County Commission Meeting Lake County Courthouse |
| 1st 12:00PM | Madison Kiwanis Club Meeting Nicky's Restaurant |
| 1st 5:15PM | Lake County Historical Society Board Meeting Smith-Zimmermann Museum, 221 8th St. NE |
| 2nd 12:00PM | Chamber Education Committee Meeting Nicky's Restaurant |
| 2nd 12:00PM | Smith-Zimmermann Museum Brown Bagger Lunch Featuring Ted LaFleur Smith-Zimmermann Museum, 221 8th St. NE |
| 3rd 12:00PM | Madison Toastmaster's Meeting Madison Public Library |
| 3rd 7:00PM | Madison Area Arts Council Meeting BrickHouse Community Arts Center, 106 S.E. 2nd St. |
| 3rd 7:00PM | A Concert of Prayer & Praise West Center Baptist, 322 W. Center St., Madison |
| 4th 7:00AM | Chamber Ag Committee Meeting 2nd Street Diner |
| 4th 3:00PM | Madison Citywide Rummage Sale Madison, SD |
| 5th 8:00AM | Madison Citywide Rummage Sale Madison, SD |
| 5th 10:30AM | Prairie Village Consignment Auction Prairie Village, 1 Mile West of Madison on Hwy 34 |
| 6th 10:00AM | Prairie Village Opening Day Prairie Village, 1 Mile West of Madison on Hwy 34 |
| 7th 12:00PM | Madison Rotary Club Nicky's Restaurant |
| 7th 5:00PM | The Gathering Meal United Methodist Church, 304 N. Egan Ave. |
| 7th 5:30PM | Madison City Commission Meeting City Hall |
| 7th 7:00PM | Madison Booster Club Meeting Nicky's Restaurant |
| 8th 12:00PM | Madison Kiwanis Club Meeting Nicky's Restaurant |
| 8th 7:00PM | Wine Tasting (RSVP Requested) Nicky's Restaurant, 1407 NW 2nd Street - W Hwy 34 |
| 10th 4:00PM | Chamber Community Promotions Meeting Depot Community Room |
| 10th 6:15PM | Domestic Violence Network Board Meeting South Dakota Department of Labor, 223 Van Eps |
| 11th 7:00AM | Chamber Ag Committee Meeting 2nd Street Diner |
| 11th 11:30AM | Custom Touch Homes Ribbon Cutting 411 SE 12th St. |
| 12th 7:30AM | Walleye Tournament Hosted by the Lake Area Walleye Club Lake Madison |
| 12th 9:15AM | Bicycle Safety Day St. Thomas Parking Lot & Gym |
| 12th 10:30AM | Prairie Village Consignment Auction Prairie Village, 1 Mile West of Madison on Hwy 34 |
| 14th 8:00AM | Madison City Wide Clean-Up Madison, SD |
| 14th 12:00PM | Madison Rotary Club Nicky's Restaurant |
| 14th 5:00PM | The Gathering Meal United Methodist Church, 304 N. Egan Ave. |
| 14th 5:30PM | Madison Lion's Club Meeting 2nd Street Diner |
| 14th 5:30PM | Madison City Commission Meeting City Hall |
| 14th 6:30PM | Madison Central School Board Meeting Madison Middle School, Room 117 |
| 15th 8:00AM | Madison City Wide Clean-Up Madison, SD |
| 15th 9:00AM | Lake County Commission Meeting Lake County Courthouse |
| 15th 12:00PM | Madison Kiwanis Club Meeting Nicky's Restaurant |
| 16th 8:00AM | Madison City Wide Clean-Up Madison, SD |
| 16th 4:00PM | Junior Achievement Board of Directors Meeting Heartland Consumers Power District |
| 17th 8:00AM | Madison City Wide Clean-Up Madison, SD |
| 17th 12:00PM | Madison Toastmaster's Meeting Madison Public Library |
| 18th 8:00AM | Madison City Wide Clean-Up Madison, SD |
| 21st 12:00PM | Madison Rotary Club Nicky's Restaurant |
| 21st 5:00PM | The Gathering Meal United Methodist Church, 304 N. Egan Ave. |
| 21st 5:30PM | Madison City Commission Meeting City Hall |
| 22nd 12:00PM | Madison Kiwanis Club Meeting Nicky's Restaurant |
| 22nd 3:30PM | Lake County Conservation Ribbon Cutting 4-H Fairgrounds on South Egan Ave. |
| 25th 9:00AM | Memorial Day Weekend Tennis Tournament High School Tennis Courts |
| 25th 7:00PM | Madison Avenue Dance Recital Dakota Prairie Playhouse Theatre |
| 27th 10:00AM | Fallen Heroes Banner Display VFW Post 2638, 510 S Washington Ave |
| 28th 10:00AM | Fallen Heroes Banner Display VFW Post 2638, 510 S Washington Ave |
| 28th 12:00PM | Madison Rotary Club Nicky's Restaurant |
| 28th 5:00PM | The Gathering Meal United Methodist Church, 304 N. Egan Ave. |
| 28th 5:30PM | Madison City Commission Meeting City Hall |
| 28th 5:30PM | Madison Lion's Club Meeting 2nd Street Diner |
| 29th 10:00AM | Fallen Heroes Banner Display VFW Post 2638, 510 S Washington Ave |
| 29th 12:00PM | Madison Kiwanis Club Meeting Nicky's Restaurant |
| 29th 6:30PM | Madison Quarter Craze Nicky's Restaurant. - West Hwy 34. Madison, SD |
| 29th 7:00PM | Madison High School Athletic Social High School Auditorium |
| 30th 10:00AM | Fallen Heroes Banner Display VFW Post 2638, 510 S Washington Ave |
| 31st 10:00AM | Fallen Heroes Banner Display VFW Post 2638, 510 S Washington Ave |