Houses for sale in McCallen, TX from the MLS and FSBO sources. Create your own search by following this link to view adjacent areas + earn the Home Bay refund of 50% of the buyer agent commission. You need the Home Bay savings to maximize your chances in a bidding war, as McCallen is a hot market. Every time a new McCallen home hits the MLS or Coming Soon, we will deliver it to you. See this post which details how wonderful and affordable McCallen is. With your Home Bay savings, you can enjoy every bit of it.