Bay St. Louis, MS: An Honest Investment Outlook

What the Price Data Shows -- and the Post-Katrina Story Behind It

Bay St. Louis' sourced price figures disagree with each other more than a typical market's would, and that disagreement is itself informative. Zillow's home-value index (a smoothed valuation estimate) puts the typical home near $230,250 as of late May 2026. Redfin's trailing-3-month median sale price, by contrast, was $405,000 as of around November 2025, up 16.5% year-over-year -- a dramatically higher and faster-moving figure than Zillow's. Homes.com's trailing-12-month median sits in between at roughly $345,000 (+8% year-over-year), and Movoto's June 2026 snapshot shows a $399,000 median list price. This isn't four sources making a mistake; it's four different measurement windows and methodologies applied to a market that genuinely splits between older, unrenovated inland housing and rebuilt or newly-built Old Town and waterfront property -- and which slice of that split happens to be transacting in a given window can move the reported median by six figures.

The more important story behind those numbers is qualitative and well-documented: nola.com/WWNO's August 2025 twentieth-anniversary Katrina retrospective explicitly frames Bay St. Louis as having become "the place to be" after the storm -- for buyers who can afford the town's post-Katrina, more upscale rebuild -- while contrasting that with the much slower recovery of nearby unincorporated communities like Pearlington. That's a real, sourced description of gentrification-driven appreciation layered on top of disaster recovery, not a hypothetical. A buyer weighing Bay St. Louis as an investment should understand that a meaningful share of the town's current price level reflects two decades of arts-and-tourism-driven repositioning since 2005, on top of ordinary Gulf Coast housing-market movement -- which makes this a harder market to benchmark against an "ordinary" small coastal town's price history.

How That Compares to State and National Benchmarks

Mississippi's statewide housing market has been comparatively modest by national standards in the most recent year, which is itself a useful counterweight to Bay St. Louis' much faster reported local gains. FHFA's all-transactions house price index put Mississippi's year-over-year appreciation at roughly 3.5% as of mid-2026, essentially in line with the roughly 3.4% national figure over the same window, and separate five-year state data shows Mississippi home prices up about 42.5% over five years -- solid, but not extraordinary compared to some faster-appreciating Sun Belt states. Mississippi's statewide median home value is reported around $169,800 against a median household income near $56,447, producing a price-to-income ratio of about 3.0 -- one of the more affordable ratios of any state, and useful context for how far above the state median Bay St. Louis' own $345,000-$405,000 sale-price figures already sit.

That gap is the clearest evidence that Bay St. Louis is not simply tracking the broader Mississippi market -- its Redfin-reported 16.5% year-over-year gain, if it holds, would run roughly five times the statewide pace, consistent with the town-specific gentrification and rebuild story described above rather than a statewide trend lifting all Mississippi coastal towns equally. This page did not find a Hancock County-specific or Gulf Coast-region-specific FHFA appreciation figure separate from the statewide number, so the comparison above should be read as Bay St. Louis vs. Mississippi as a whole, not Bay St. Louis vs. its immediate coastal peers -- for that comparison, see this site's Biloxi, Gulfport, and Ocean Springs pages.

Rental Income: A Real, Currently-Registered Short-Term-Rental Market

Unlike some smaller markets on this site where short-term-rental rules are unconfirmed or unsettled, Bay St. Louis has a real, dated, and specific ordinance. The City of Bay St. Louis City Council passed a short-term-rental ordinance requiring registration; applications opened in mid-September 2024, the city began accepting registrations on October 1, 2024, and enforcement began January 1, 2025. Registration carries a $100 annual fee, requires a city inspection covering basic safety items (smoke detectors, fire extinguishers, and similar), and requires proof of insurance coverage. As of this research, the city has stated there is no cap or quota on the total number of permitted short-term rentals -- a materially more permissive framework than markets currently debating or phasing out STR permits, and worth confirming has not changed before underwriting a purchase around rental income.

Bay St. Louis' rental-income case rests on real, tangible demand drivers: proximity to New Orleans (roughly an hour's drive), the Second Saturday Artwalk and broader Old Town arts-tourism draw, Hollywood Casino Gulf Coast, and Buccaneer State Park's water park just across the Waveland line all bring recurring weekend and vacation traffic to the immediate area. This page does not have Bay St. Louis-specific average daily rate or occupancy data and did not fabricate a projected return -- pull actual comparable-property performance data (from a local property manager or a platform like AirDNA) for the specific style and location under consideration, and confirm the current registration requirements and fee directly with the City of Bay St. Louis Planning & Zoning Department, since ordinances of this kind are revisited periodically.

Risk Factors Worth Weighing Before Timing a Purchase

Three risk factors deserve to be named plainly rather than folded into general coastal-risk language. First, and most specific to this exact location: Bay St. Louis has twice, within 60 years, sat directly under the most intense quadrant of a landfalling hurricane -- Hurricane Camille in 1969 (Category 5, roughly 175 mph winds, roughly 25-foot surge at nearby Pass Christian) and Hurricane Katrina in 2005 (eye ashore almost directly over the town, roughly 120 mph eyewall winds, storm surge approaching 28 feet). That is not a basis for predicting the timing of a third such event, and this page does not attempt to -- but it is a basis for treating catastrophic storm risk here as a documented, repeated pattern specific to this stretch of coast, not a low-probability abstraction shared equally by every Gulf town.

Second, insurance cost trajectory: the Mississippi Windstorm Underwriting Association raised rates 16% effective January 1, 2026, and Mississippi Gulf Coast flood-insurance costs (commonly $3,200-$5,500+/year for higher-risk parcels, with Hancock County among the state's highest) have been widely reported as a genuine, ongoing affordability pressure on coastal Mississippi ownership -- Mississippi Today's October 2025 reporting specifically characterized coastal insurance as "a lingering disaster" for the region, independent of any specific storm event. That's a real, current cost trend that should be underwritten into any multi-year hold, not discovered after closing. Third, affordability and gentrification risk cut both ways for an investor: the same post-Katrina repositioning that has driven Bay St. Louis' reported double-digit year-over-year price gains also means the town's long-term rental and resale market increasingly serves a different (and smaller) buyer pool than it did as a working-class fishing and shipping town before 2005 -- a dynamic that has upside for near-term appreciation but real exposure if that specific buyer pool's demand softens.

Bottom Line

The best-documented facts on this page are the historical ones: Bay St. Louis sits at the site of two of the most severe direct hurricane hits any small American coastal town has taken in the past 60 years, and its current housing stock, price level, and arts-driven identity were substantially reshaped by the more recent of those two storms. The price data layered on top of that history is real but genuinely inconsistent across sources -- a $230,000 typical value here, a $405,000 trailing median sale price there -- reflecting a market that is still actively differentiating between its older and its rebuilt housing stock two decades after Katrina. A real, currently-enforced short-term-rental ordinance (registered since late 2024, no stated cap as of this research) is a genuine point in this market's favor relative to towns still fighting that policy question out. This page is informational only. It is not financial, investment, tax, or legal advice, and nothing here should be used as the sole basis for a purchase or investment decision -- talk to a local real estate agent, a financial advisor, and a licensed Mississippi insurance professional, and pull your own current comps, before making that call.