If you are asking does Columbus-Lowndes County Airport have a lounge, the short answer is no, and it is not close: this is a small regional airport in northeastern Mississippi, built around general aviation, flight training, and limited air service rather than the kind of passenger volume that supports a lounge, however the question is phrased.
The reason ties back to the kind of flying this airport actually handles. Columbus-Lowndes County serves general aviation traffic and small aircraft operations rather than a network of major-airline routes with connecting premium passengers, and airports built around that kind of activity rarely add lounge infrastructure, because there is no ongoing demand for one. Nothing here resembles an airline club, a Priority Pass lounge, or a pay-in space, and none of that is likely to change.
For real lounge access from this part of Mississippi, look toward two larger hubs instead. Hartsfield-Jackson Atlanta International Airport, one of the world's busiest hubs, sits a few hours east and carries an extensive network of airline and membership lounges built for its enormous connecting traffic. Birmingham-Shuttlesworth International Airport, closer and more modestly sized, is a more realistic regional option for travelers wanting airline status or membership-based lounge access without the drive to Atlanta. Either is a far more sensible target than Columbus-Lowndes County if a lounge matters to your trip.
At Columbus-Lowndes County itself, expect a small terminal building geared toward general aviation traffic rather than commercial passengers, with basic seating and no food service comparable to a larger airport. If your travel plans include a scheduled commercial flight with lounge access in mind, route your expectations toward Atlanta or Birmingham rather than this field, and confirm your specific airline or membership program's current terms at whichever of those airports you actually fly through, well ahead of your travel date.