Seguin is a city in and the county seat of Guadalupe County, Texas, United States. As of the 2010 census, the population was 25,175. By 2018, the population was estimated to be 29,700. Our Flat Fee Listing Service is proudly serving the Seguin, TX real estate market. We are a local Real Estate Brokerage that believes that 6% commission is too much to pay for sellers in Seguin. Pay $95 and save THOUSANDS! Contact us for any further questions about your Flat Fee MLS Seguin listing.