How much does a 400 sq ft concrete slab cost in Mobile, AL?

City

Slab area (sq ft)

A poured concrete slab in Mobile, AL

$2,340

400 ft² of slab · typical range $1,440 – $3,959

Typical total$5.85 per ft² of slab	$2,340
Range you should see in bidsthree bids on the same scope normally land inside this	$1,440 – $3,959
Labor portion50% of the job — this is the part that moves by city	$1,170
Material portion50% — bought at national prices	$1,170
Cement Masons and Concrete Finishers pay near Mobileabout $23/hr · Mobile, AL metro	$48,020/yr
U.S. mean for the same tradeSOC 47-2051	$60,050/yr
Versus the national pricetrade pay here runs −20% against the U.S. mean	−$260

Notes

Where the number comes from. The national price for a poured concrete slab is $6.50 per ft² of slab — poured slab pricing published for 2026, $4–$11 per ft² for a 4-inch slab on grade. Labor is about 50% of that. Cement Masons and Concrete Finishers near Mobile, AL average $48,020 a year against a U.S. mean of $60,050 — a factor of 0.8 — so the labor half is scaled by that and the material half is not. Source: BLS OEWS May 2025 for the Mobile, AL metro area, SOC 47-2051.
Why the city matters, not just the state. Trade pay moves inside a state as much as it does between states. Crews do not commute across a state to bid a job, and materials ship at national prices either way — so a metro wage is the honest input here and a state average quietly rounds four different cities into one number.
What is in the price: excavation to grade, a compacted gravel base, forms, wire mesh or fibre, the concrete itself, placing, screeding, a broom or trowel finish, and labor.
What is not: thickened edges for a load-bearing wall, a vapour barrier under a heated slab, rebar mats where an engineer calls for them, saw-cut control joints past the standard spacing, and any grading or drainage work around the pour. These are the lines that turn a $2,340 quote into a $2,924 invoice, so ask about each one before signing.
Use this as a bid check, not a quote. It prices an average job in average condition. Difficult access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a per-unit average.

a poured concrete slab in Mobile, AL

$2,340 is the typical number, and three bids on the same scope normally land between $1,440 and $3,959.

That is $260 less than the same job priced at the national average.

Why the city changes the number

About 50% of this job is labor — $1,170 of the $2,340 above. Labor is the only part that moves locally; a bundle of material costs what it costs wherever it is nailed down.

Cement Masons and Concrete Finishers near Mobile average $48,020 a year, against a U.S. mean of $60,050. That is a factor of 0.8, so the labor half is scaled by it and the material half is not.

Source: BLS OEWS May 2025 for the Mobile, AL metro area, SOC 47-2051.

What the quote should include

The lines that turn a quote into an invoice

Ask about each of them before you sign. On a job this size they are the difference between $2,340 and something a quarter higher.

Use it as a bid check, not a quote

This prices an average job in average condition. Access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a national average.

If a bid lands outside $1,440 – $3,959, that is not automatically wrong — but it is the question worth asking out loud.

Nearby sizes

Bags or a Truck — The Crossover Is About One Cubic YardThe arithmetic is not really about price. It is about how long a slab can sit half-poured before the joint between the halves becomes permanent.
Concrete Slab Cost by State — 400 ft², All 51The figures price a 4-inch slab on grade. A driveway wants six inches and rebar, and that is not a small adjustment.
Rebar in a Slab — Spacing, Cover, and Why Position Matters MoreRebar laid on the ground and left there does nothing. It has to be held up into the concrete, and that is the step that gets skipped.
Paver Base Cost — What the Layer Nobody Sees Actually CostsThe base is a third of the material cost and all of the reason a patio either stays flat or does not.