Looking for a cheap apartment for rent in Cameron County, TX? With RENTCafé, finding an affordable apartment in Cameron County, TX has never been easier. We feature 1 low-priced rental directly from property managers, with rents lower than the Cameron County, TX average. What is a cheap rent in Cameron County, TX? The average apartment rent in Cameron County is $696 per month so any rental south of $557 would be considered cheap here. Size matters though, so if you are in a market for a studio, expect to pay around $345 per month. If you’re looking to upgrade to a 1-bedroom apartment you’ll pay around $436, while a cheap 2-bedroom apartment will cost you about $511 per month.