How much does a concrete driveway cost in Blaine County, MT?

A 400-square-foot concrete driveway in Blaine County costs $3,500 to $6,500, with the average project running $4,800. This aligns with national pricing since local labor rates match the national average of $28.33 per hour for concrete finishers.

What is the best time of year to pour concrete in Blaine County?

Late May through early September offers the safest pouring window. With 7,498 heating degree-days annually, Blaine County experiences deep frost that can damage curing concrete. Pouring outside summer months requires insulation blankets and additives that add $0.50-$1.00 per square foot.

Why do I need air-entrained concrete in Montana?

Blaine County's winter weather risk score of 81.29 (Relatively Moderate) indicates significant freeze-thaw cycling. Air-entrained concrete with 5-7% air content creates microscopic bubbles that let water expand without cracking the slab. This is essential for exterior concrete in IECC zone 6B climates.

How deep do concrete footings need to be in Blaine County?

Footings should extend below the frost line, often 48 inches or deeper in Blaine County. The 7,498 annual heating degree-days indicate ground that freezes deeply each winter. Shallow footings can heave and crack as the ground expands and contracts.

How does a concrete patio compare in cost to a driveway?

A 400-square-foot patio slab costs $3,000 to $6,000 (average $4,200), compared to $3,500 to $6,500 for a driveway of the same size. Driveways cost more due to thicker slabs, reinforcement requirements, and heavier base preparation for vehicle loads.

Should I finance a concrete project or pay cash?

With current 30-year mortgage rates at 6.36%, home equity financing offers reasonable rates for projects over $3,000. At Blaine County's median home value of $124,900, a $4,800 driveway represents about 3.8% of home value. Cash payment avoids interest but may strain budgets in this lower cost-of-living area.

How much does a sidewalk cost per linear foot in Blaine County?

A 50-linear-foot sidewalk section costs $800 to $1,800, averaging $1,200. This works out to $16-$36 per linear foot, with the $24 average covering standard 4-inch thickness and basic finishing. Decorative stamps or colored concrete push costs toward the higher end.

REGIONAL COST GUIDE · Blaine County, MT

How Much Does Concrete Work Cost in Blaine County, MT?

Concrete driveways in Blaine County cost $3,500-$6,500 for 400 sq ft. Get local pricing for patios, sidewalks, and slabs with freeze-thaw considerations.

Cost range $3,500 – $6,500

Average $4,800

Updated May 17, 2026

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COST BREAKDOWN

What homeowners in Blaine County actually pay.

Local market ranges built from regional labor, materials, and permitting data — not national averages.

Concrete Driveway (400 sq ft)

$3,500 Avg: $4,800 $6,500

Patio Slab (400 sq ft)

$3,000 Avg: $4,200 $6,000

Sidewalk Section (50 linear ft)

$800 Avg: $1,200 $1,800

National avg $4,800 × 1x local adjustment = $4,800

Why Blaine County prices look like this.

Scheduling your concrete pour between late May and early September can save you hundreds in cold-weather premiums and reduce the risk of freeze damage during curing. In Blaine County, concrete projects align closely with national averages, with driveways running $3,500 to $6,500 for a standard 400-square-foot installation. Patios fall in the $3,000 to $6,000 range for comparable sizing, while a 50-linear-foot sidewalk section costs $800 to $1,800. The county's harsh winters (7,498 heating degree-days annually) make proper curing and air-entrained concrete mixes essential for longevity. With median home values at $124,900, a new concrete driveway or patio represents a meaningful investment relative to property values. Understanding the factors that influence your final quote, from site preparation to decorative finishes, helps you evaluate bids accurately and avoid unexpected charges.

Labor Costs and Contractor Availability

Cement masons and concrete finishers earn a national average of $28.33 per hour ($58,928 annually). Because Blaine County lacks sufficient local employment data for this trade, contractors serving the area may travel from larger Montana cities, potentially adding mobilization fees to your quote. The national workforce includes approximately 3,560 workers in this specialty. Labor accounts for roughly 40-50% of a concrete project's total cost, with the remainder covering materials, equipment rental, and site preparation. Request itemized quotes that separate labor from materials so you can compare bids effectively. Experienced contractors command higher rates but often complete work faster and with fewer callbacks. Ask about crew size and estimated completion time, as larger crews can pour and finish slabs more efficiently, reducing weather-related risks during Montana's short optimal pouring season.

Weather Risks and Concrete Durability

Blaine County's winter weather risk score of 81.29 (Relatively Moderate) presents the primary concern for concrete installations. Freeze-thaw cycles can cause spalling and cracking if concrete is not properly mixed and cured. Specify air-entrained concrete with 5-7% air content to resist frost damage. The county's lightning risk score of 80.12 (Relatively Moderate) poses minimal direct threat to concrete but may interrupt outdoor work during summer storms. Flood risk registers at 46.53 (Relatively Low), making proper grading and drainage around new slabs advisable but not critical. Hail (28.18) and tornado (6.68) risks are Very Low, so these hazards rarely impact concrete structures. Overall, the county's composite risk score of 45.87 (Relatively Low) indicates a manageable environment for concrete work when winter conditions are respected.

Climate Zone Considerations for Concrete

Blaine County falls within IECC climate zone 6B, a cold and dry classification in the DOE's north HVAC region. With 7,498 heating degree-days annually (more than double the national median of 3,700 HDD), the ground freezes deeply each winter. This requires concrete footings to extend below the frost line, often 48 inches or deeper. The county's minimal 434 cooling degree-days mean summer heat stress on concrete is negligible. Average annual temperature of 4.5°F and just 3.7 inches of annual snowfall may seem surprising, but the heating degree-day metric captures the sustained cold that matters for construction. Concrete poured in spring or fall needs blanket insulation during curing, adding $0.50-$1.00 per square foot to project costs. The dry moisture regime (B classification) reduces concerns about moisture-related concrete deterioration compared to humid climates.

Utility Costs and Heated Slab Options

Montana's residential electricity rate of $0.133 per kWh influences the economics of radiant-heated concrete slabs for garages or workshops. A heated slab can prevent ice buildup and tool damage but adds operating costs in a heating-dominated climate. With 7,498 HDD annually, expect higher heating bills if you choose this option. Blaine County receives 4.59 peak sun hours daily, producing 7,905 kWh annually from a reference 6kW solar system (15.0% capacity factor). Solar could offset heated-slab electricity costs over time, though the primary application remains home heating. For standard exterior concrete like driveways and patios, electricity costs are irrelevant to installation. However, powered concrete tools and mixers contribute modestly to contractor overhead, and these costs pass through in your quote at local utility rates.

Financing Your Concrete Project

With median home values at $124,900 in Blaine County, a $4,800 concrete driveway represents roughly 3.8% of home value. Current 30-year mortgage rates sit at 6.36% as of May 2026, making home equity loans a viable option for larger projects. Personal loans or contractor financing may carry higher rates but avoid tapping home equity. The county's cost-of-living tier (0.72x national average for housing) means local incomes may support smaller project budgets than coastal markets. Median property taxes of $1,901 annually indicate modest carrying costs for homeowners considering improvement investments. Many contractors offer payment plans for projects over $3,000, splitting costs across deposit, mid-project, and completion milestones. Get financing pre-approved before soliciting bids so you can move quickly when a contractor has availability during the short summer season.

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FREQUENTLY ASKED · 07

Questions buyers ask about concrete in Blaine County.

Short answers to the most common things we hear about local pricing, scope, and timing.

How much does a concrete driveway cost in Blaine County, MT?

A 400-square-foot concrete driveway in Blaine County costs $3,500 to $6,500, with the average project running $4,800. This aligns with national pricing since local labor rates match the national average of $28.33 per hour for concrete finishers.
What is the best time of year to pour concrete in Blaine County?

Late May through early September offers the safest pouring window. With 7,498 heating degree-days annually, Blaine County experiences deep frost that can damage curing concrete. Pouring outside summer months requires insulation blankets and additives that add $0.50-$1.00 per square foot.
Why do I need air-entrained concrete in Montana?

Blaine County's winter weather risk score of 81.29 (Relatively Moderate) indicates significant freeze-thaw cycling. Air-entrained concrete with 5-7% air content creates microscopic bubbles that let water expand without cracking the slab. This is essential for exterior concrete in IECC zone 6B climates.
How deep do concrete footings need to be in Blaine County?

Footings should extend below the frost line, often 48 inches or deeper in Blaine County. The 7,498 annual heating degree-days indicate ground that freezes deeply each winter. Shallow footings can heave and crack as the ground expands and contracts.
How does a concrete patio compare in cost to a driveway?

A 400-square-foot patio slab costs $3,000 to $6,000 (average $4,200), compared to $3,500 to $6,500 for a driveway of the same size. Driveways cost more due to thicker slabs, reinforcement requirements, and heavier base preparation for vehicle loads.
Should I finance a concrete project or pay cash?

With current 30-year mortgage rates at 6.36%, home equity financing offers reasonable rates for projects over $3,000. At Blaine County's median home value of $124,900, a $4,800 driveway represents about 3.8% of home value. Cash payment avoids interest but may strain budgets in this lower cost-of-living area.
How much does a sidewalk cost per linear foot in Blaine County?

A 50-linear-foot sidewalk section costs $800 to $1,800, averaging $1,200. This works out to $16-$36 per linear foot, with the $24 average covering standard 4-inch thickness and basic finishing. Decorative stamps or colored concrete push costs toward the higher end.

SOURCES · 08

How these numbers were built.

Cost estimates are derived from government data including the U.S. Census Bureau (ACS), Bureau of Labor Statistics (OEWS), FEMA National Risk Index, EIA energy data, IECC climate zone classifications, Federal Reserve (FRED), and HUD Fair Market Rents.