Charleston vs Mobile Cost of Living
Mobile is approximately 15.7% cheaper than Charleston. See salary equivalence, taxes, and side-by-side breakdown.
Charleston, SC
Mobile, AL
| Salary in Charleston | Equivalent in Mobile | Difference |
|---|---|---|
| $50,000 | $42,200 | -$7,800 (-15.6%) |
| $75,000 | $63,200 | -$11,800 (-15.7%) |
| $100,000 | $84,300 | -$15,700 (-15.7%) |
| $150,000 | $126,500 | -$23,500 (-15.7%) |
| $200,000 | $168,600 | -$31,400 (-15.7%) |
Charleston is roughly 16% more expensive overall, and housing is doing almost all of the work: a one-bedroom runs $1,650 in Charleston against $850 in Mobile.
Housing does most of the damage
Almost the entire gap between two cities is shelter. Tradable goods cost roughly the same everywhere; land does not. A one-bedroom runs about $1,650 a month in Charleston and $850 in Mobile — $800 a month apart, or $9,600 a year.
Buying sharpens the same story. Median home prices sit near $470,000 in Charleston against $210,000 in Mobile — at 20% down, about $52,000 apart in cash up front, before property tax rates in South Carolina and Alabama enter the picture.
The price-to-rent ratios diverge enough to change the buy-versus-rent answer: about 21 in Mobile versus 24 in Charleston. A ratio near 15 or lower makes buying straightforward; near 20 or above, renting and investing the gap is usually the stronger play. Which means the right answer can genuinely be to buy in one and rent in the other.
Work, weather, and what else is different
Charleston is a smaller metro of about 0.8M and growing fast; Mobile is a small metro of about 0.4M and roughly flat.
These labor markets barely overlap. Charleston is built around aerospace manufacturing, tourism, port/logistics (Boeing South Carolina (787 assembly), Joint Base Charleston), Mobile around shipbuilding & aerospace, maritime/port, healthcare (Austal USA, Airbus (final assembly line)). Your experience may not read as relevant on the other end — secure an offer before you move.
The part spreadsheets leave out. Charleston: Humid subtropical coastal: January highs near 59°F/lows 40°F, July highs near 90°F/lows 74°F, humid with real hurricane exposure June-November. Mobile: Humid subtropical climate: January lows near 42°F, July highs near 91°F, very humid, hurricane-prone.
No local income tax, but coastal flooding and hurricane/storm-surge risk are material relocation factors — parts of the peninsula flood during routine high tides. Mobile is among the wettest major US cities, averaging roughly 65 inches of rain a year; Airbus operates a commercial jet final-assembly line here, one of only two in North America.
Cost indexes derive from Bureau of Economic Analysis Regional Price Parities; rent, home prices and local tax rates are compiled from market and municipal sources. How these are compiled and updated.
Related tools
Paycheck calculator — take-home after federal, state and local tax. Salary calculator — hourly and annual conversion. Mortgage calculator — what a home in either metro actually costs monthly. Guide: the true cost of relocating.