Concrete slab cost in Rapid City, SD
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (400 sq ft)
- $2,250 – $4,800
- Per sq ft
- $5.55 – $11
- before permit
- Versus US midpoint
- −7%
- US $3,850
- Rank of 300 metros
- #202
- 1 = most expensive
A concrete slab in Rapid City, SD usually costs $2,250 to $4,800 for 400 sq ft. That works out to about $5.55 to $11 per sq ft before permits. Compared with the national midpoint that is $280 less. Cement masons and concrete finishers earn a median of $23.22 an hour in the Rapid City area, 15% below the US median of $27.41.
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Estimated cost for 400 sq ft in Rapid City, SD, standard level
$3,050 to $4,050
About $7.25 to $9.50 per sq ft before permits. Labor is about 40% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $1,600 | $2,200 |
| Labor | $1,300 | $1,600 |
| Permits and fees | $140 | $260 |
| Total | $3,050 | $4,050 |
Cost breakdown for 400 sq ft in Rapid City, SD
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $1,150 | $1,900 | $2,650 | 54% |
| Labor | $1,050 | $1,450 | $1,800 | 40% |
| Permits and fees | $45 | $200 | $360 | 6% |
| Total | $2,250 | $3,550 | $4,800 | 100% |
Where the Rapid City price comes from
We price the labor side from BLS wage data for 4 trades: cement masons and concrete finishers at 50%, construction laborers at 30%, operating engineers and other construction equipment operators at 10%, carpenters at 10%. Weighted together, Rapid City wages are 0.90 times the national level. Labor makes up about 40% of the midpoint estimate (42% at national prices).
Materials are scaled with BEA's regional price parity for goods. Rapid City is at 95.5 against 100 for the US, so a materials line of $2,000 nationally becomes $1,900 here (midpoint, 400 sq ft). Permits follow the all-items index of 89.2: $45 to $360.
What local crews earn in Rapid City
The labor line is built from BLS wage data, one trade at a time. This job draws on 4 trades. We compare each trade's local median with the US median, weight the ratios by how much of the job each trade does, and apply the blend to the national labor cost. For Rapid City the blend is 0.90.
Cement masons and concrete finishers (47-2051), 50% of the weighting: a median of $23.22 an hour, 15% below the US median of $27.41. The middle half of them earn between $21.78 and $28.47 an hour. About 470 work in the metro. That is 63.7 per 10,000 jobs, compared with 13.3 nationally, which suggests plenty of local crews to bid.
For construction laborers (47-2061, weighted 30%) the local median is $21.94 an hour, which is 3% below the national $22.66. The middle half of them earn between $19.14 and $22.91 an hour. BLS counts 410 of them working in the area, 55.5 for every 10,000 jobs (US: 70.5), so the local bench is thinner than average.
Operating engineers and other construction equipment operators (47-2073), 10% of the weighting: a median of $29.16 an hour, in line with the US median of $28.78. The middle half of them earn between $25.29 and $30.59 an hour. About 410 work in the metro. That is 55.5 per 10,000 jobs, compared with 30.7 nationally, which suggests plenty of local crews to bid.
Carpenters (47-2031), 10% of the weighting: a median of $23.39 an hour, 20% below the US median of $29.12. The middle half of them earn between $21.34 and $28.88 an hour. About 870 work in the metro. That is 117.9 per 10,000 jobs, compared with 43.1 nationally, which suggests plenty of local crews to bid.
A quick sensitivity check: moving the lead trade (cement masons and concrete finishers) from the median to the 75th percentile wage adds about $150 to the midpoint estimate; the 25th percentile takes off about $40. That is a swing of roughly 1.2% to 4.3% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Rapid City has 73,820 jobs in total (BLS, May 2025), ranking 249th by size among the 300 metros on this site.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Cement masons and concrete finishers (47-2051) | 50% | $21.78 | $23.22 | $28.47 | $27.41 | 0.85 | metro |
| Construction laborers (47-2061) | 30% | $19.14 | $21.94 | $22.91 | $22.66 | 0.97 | metro |
| Operating engineers and other construction equipment operators (47-2073) | 10% | $25.29 | $29.16 | $30.59 | $28.78 | 1.01 | metro |
| Carpenters (47-2031) | 10% | $21.34 | $23.39 | $28.88 | $29.12 | 0.80 | metro |
| Blended | 100% | 0.90 | |||||
Rapid City: what basic, standard and premium work costs
The cited range is split into basic, standard and premium bands, then scaled to Rapid City. Bands overlap, because plenty of standard jobs cost as much as a light premium one. Sizes run from 10x10 pad (100 sq ft) to 30x40 foundation (1,200 sq ft).
Basic
$2,250 to $3,300
4-inch broom-finish slab, light mesh, easy truck access
Standard
$3,050 to $4,050
4-5 inch slab with rebar or heavier mesh and standard base prep
Premium
$3,800 to $4,800
6-inch slab, heavy reinforcement, thick base, pump truck or tight access
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x10 pad (100 sq ft) | $600 – $950 | $860 – $1,200 | $1,100 – $1,450 |
| 12x12 (144 sq ft) | $840 – $1,300 | $1,200 – $1,650 | $1,500 – $1,950 |
| 20x20 (400 sq ft) | $2,250 – $3,300 | $3,050 – $4,050 | $3,800 – $4,800 |
| 24x24 garage floor (576 sq ft) | $3,250 – $4,650 | $4,300 – $5,700 | $5,350 – $6,800 |
| 30x40 foundation (1,200 sq ft) | $6,700 – $9,500 | $8,800 – $11,600 | $10,900 – $13,800 |
Rapid City weather and the concrete slab calendar
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Rapid City Wfo (in the city). They are 30-year averages, so any one year can run hotter, colder or wetter.
For pouring concrete, the comfortable months in Rapid City are May through September: 5 of 12. Outside them, January, February, March, April, October, November and December have an average overnight low of 40°F or below.
The 40°F line is a deliberately cautious stand-in. The American Concrete Institute's cold-weather guide (ACI 306R-16) defines cold-weather concreting around an average daily air temperature below 40°F, which is colder than our test of an average overnight low at or below 40°F, so we flag a few extra shoulder months. In cold weather crews may need heated enclosures, insulating blankets or accelerated mixes, and those measures can raise a quote.
Rapid City gets about 20 inches of precipitation in a normal year, including roughly 54 inches of snow. The wettest months are May, June and July (4.1 inches in May). Inside the workable window, August and September are the driest, at 2.2 and 1.4 inches. The station averages about 24 days a year at 90°F or above.
We do not adjust the estimate by month, because we have no reliable published data on seasonal pricing. It is still worth asking contractors whether an off-peak start date changes their bid.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 37 | 16 | 0.3 | Cold |
| Feb | 38 | 18 | 0.5 | Cold |
| Mar | 47 | 26 | 0.9 | Cold |
| Apr | 55 | 34 | 2.3 | Cold |
| May | 65 | 45 | 4.1 | Workable |
| Jun | 76 | 55 | 3.3 | Workable |
| Jul | 84 | 62 | 2.6 | Workable |
| Aug | 83 | 60 | 2.2 | Workable |
| Sep | 74 | 51 | 1.4 | Workable |
| Oct | 59 | 38 | 1.5 | Cold |
| Nov | 47 | 27 | 0.5 | Cold |
| Dec | 38 | 19 | 0.4 | Cold |
Is Rapid City cheap or dear? The local comparison
Of the five closest metros, none is cheaper than Rapid City. Sioux Falls comes closest at about $3,550.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Rapid City, SDthis page | $2,250 – $4,800 | $3,550 | |
| Bismarck, ND210 miles | $2,400 – $5,050 | $3,750 | +6% |
| Cheyenne, WY220 miles | $2,400 – $5,100 | $3,750 | +6% |
| Greeley, CO260 miles | $2,400 – $5,100 | $3,750 | +6% |
| Fort Collins, CO275 miles | $2,450 – $5,150 | $3,800 | +7% |
| Sioux Falls, SD305 miles | $2,250 – $4,850 | $3,550 | level |
| South Dakota (statewide) | $2,250 – $4,800 | $3,500 | −1% |
| United States | $2,450 – $5,200 | $3,850 | +8% |
Out of the 300 metros we cover, Rapid City ranks #202 for the cost of this job (#1 is the most expensive). Statewide, Rapid City is 1% above the South Dakota figure.
Elsewhere in South Dakota
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Sioux Falls, SD | 178,590 jobs | $2,250 – $4,850 | $3,550 | level |
Metros of a similar size
Big cities and small ones price differently, so here is Rapid City against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Blacksburg, VA | 74,070 jobs | $2,200 – $4,750 | $3,450 | −2% |
| Kahului, HI | 73,750 jobs | $3,500 – $7,100 | $5,300 | +50% |
| Sioux City, IA | 75,010 jobs | $2,350 – $4,950 | $3,650 | +4% |
| Bloomington, IN | 73,240 jobs | $2,500 – $5,200 | $3,850 | +8% |
What nearby projects cost in Rapid City
Jobs that often go together with concrete slab are priced below at their usual sizes, using the same Rapid City wage and price inputs. Compared with national midpoints, asphalt driveway comes out highest (−1%) and detached garage lowest (−9%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Concrete driveway | 600 sq ft | $3,350 – $8,400 | −9% |
| Concrete patio | 300 sq ft | $1,150 – $3,650 | −8% |
| Detached garage | 576 sq ft | $26,300 – $52,800 | −9% |
| Stamped concrete | 400 sq ft | $3,000 – $7,350 | −7% |
| Asphalt driveway | 600 sq ft | $3,000 – $7,350 | −1% |
| Gravel driveway | 1,000 sq ft | $2,450 – $9,900 | −3% |
Optional extras in Rapid City
Add-ons start from national price ranges and are scaled by 0.93 for Rapid City, which is the average of the area's wage index (0.90) and goods price index (0.95). The estimator above can add them to your total.
| Add-on | Local range |
|---|---|
| Add rebar reinforcement | $370 – $1,100 |
| Remove old concrete first | $740 – $2,200 |
Concrete slab: what moves the price in Rapid City
Thickness and mix
A 4-inch slab uses about 1.23 cubic yards of concrete per 100 sq ft; a 6-inch slab uses about 1.85. Stepping up from a 3,000 PSI to a 4,000-4,500 PSI mix adds $10-$40 per cubic yard (Estimators.us).
Base and reinforcement
A compacted gravel base, vapor barrier, and wire mesh or rebar are priced separately by some contractors and bundled by others. Ask which one your quote does.
Truck and pump access
If the mixer truck can't back up to the forms, someone has to wheelbarrow it in or hire a pump. Pump or line-pump hire is typically billed per day.
Get 3 local quotes
Tell us about the job and we will try to connect you with up to three local contractors for written quotes. It is free and you are under no obligation to hire. Your estimate of $3,050 to $4,050 for Rapid City, SD is attached.
Detailed concrete slab report for Rapid City, SD, $9
Multi-page report for Rapid City, SD: low, typical and high cost, a line-item breakdown of materials and labor by trade, permit notes, the best months to schedule, a quote comparison sheet, red flags, questions for contractors, checklists and every source. Save your estimate above, preview page 1 free, and unlock the full report for $9 one-time, or get every report with CostLocal Pro.
Concrete slab in Rapid City: your questions
+How much does it cost to pour a concrete slab in Rapid City?
For 400 sq ft, expect $2,250 to $4,800 in the Rapid City area. A standard-spec job lands at $3,050 to $4,050. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for concrete slab in Rapid City?
About $5.55 to $11 per sq ft for materials and labor, plus $45 to $360 for the permit if one is needed. The US range is $6 to $12.
+Is concrete slab cheaper in Rapid City or Bismarck?
Bismarck is 210 miles away. The midpoint for 400 sq ft there is $3,750, which is 6% more than Rapid City ($3,550). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Rapid City?
About 40% at the midpoint, or $1,450 out of $3,550. Materials are 54% and permits 6%. Nationally, labor is 42%.
+What would 20x20 (400 sq ft) cost in Rapid City?
$2,250 to $4,800. Pick a different size in the estimator above to get your own number.
+Does concrete slab need a permit in Rapid City?
Often, but rules are set by your city or county building office, so call before you hire. Budget $45 to $360 for fees in the Rapid City area (our national range of $50 to $400 scaled by the local price level).
+Is Rapid City expensive for concrete slab compared with the rest of South Dakota?
Rapid City is 1% above the South Dakota statewide estimate ($3,500 at the midpoint). We cover 2 metros in South Dakota; see the state page to compare them.
+What do cement masons and concrete finishers earn in Rapid City?
The BLS median is $23.22 an hour in the Rapid City area, compared with $27.41 nationally. The 25th to 75th percentile range is $21.78 to $28.47.
+What do basic and premium concrete slab work cost in Rapid City?
For 400 sq ft, basic work runs $2,250 to $3,300 and premium work $3,800 to $4,800. Basic means: 4-inch broom-finish slab, light mesh, easy truck access. Premium means: 6-inch slab, heavy reinforcement, thick base, pump truck or tight access.
+When is the best time to pour a concrete slab in Rapid City?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are May through September. August and September are typically the driest of those months. Local contractors' schedules matter as much as the weather, so book early for the busy months.
+What does "add rebar reinforcement" add in Rapid City?
$370 to $1,100 for 400 sq ft, from a national range scaled by the local wage and goods indexes.
Concrete slab near Rapid City
Where these numbers come from
Base prices are national ranges from the sources below. We scale labor by local BLS wages, materials by BEA goods prices and permits by the BEA all-items price level. Full method on the methodology page.
- HomeGuide: How Much Does a Concrete Slab Cost? (2026) (accessed November 4, 2026)
- Estimators.us: Concrete Slab Cost in 2026 | $6-$12/Sq Ft Guide (accessed November 4, 2026)
- HomeGuide: How Much Does a Concrete Patio Cost? (2026) (accessed November 4, 2026)
- HomeGuide: How Much Does a Concrete Driveway Cost? (2026) (accessed November 4, 2026)
- BLS Occupational Employment and Wage Statistics, May 2025
- BEA Regional Price Parities, 2024
- NOAA NCEI U.S. Climate Normals, 1991-2020