The township comprises the communities of Bethel, Birdell, Boothville, Cedarville, Conn, Dromore, Dundalk, Egerton, Gildale, Holstein, Hopeville, Keldon, Kingscote, Landerkin, Proton Station, Robbtown, Signet, Swinton Park, Tartan, Thistle, Varney, Ventry and Yeovil.

The village of Dundalk is located on Hwy 10 and is serviced with municipal water and sewers, natural gas (Enbridge), electricity (Hydro One) and cable (Eastlink).

For the last 20 years, Mennonites have been purchasing farmland in Southgate and have expanded the land base available for agriculture.

These manufacturers use CNC equipment such a laser cutters to produce a wide variety of metal parts and products.

A new tourism experience was developed in 2016 called Butter Tarts & Buggies: Explore the Simpler Life in partnership with Wellington North, Minto, Mapleton and West Grey.

It includes the Mennonite culture of Southgate with butter tarts and the local food experience.

The village of Dundalk hosts many tourism events including the Dundalk Fair and Canadian Open Dance Competition, Horse Shows, Family Recreation Weekend, Automotive Swap-Meet & Flea Market and Santa Claus Parade.

It includes saddle horse shows, harness racing, demolition derby, tractor pulls, classic car show, garden tractor races, Ambassador of the Fair crowning, amusement rides and over a hundred competitions judging jam to livestock.

Holstein's Maplefest is hosted at Love's Sugarbush the second weekend in April and has displays of pioneer activities, modern production of maple syrup, games, booths from local merchants, artists and local community groups and has live shows and children's entertainment.

Butter Tarts and Buggies is a new tourist attraction in Southgate, Wellington North, Minto, Mapleton and West Grey which features many of the Mennonite businesses in the Holstein area.