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Traffic heat map of Iredell County, North Carolina: 615 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 77 and I 40

Iredell County, North Carolina Traffic Counts

How busy are the roads of Iredell County, North Carolina? We measure 615 road miles, divided into 13,356 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, I 77, carries 60,732 vehicles a day, 8.4 times the average road. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Iredell County, North Carolina

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day7,201
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

11.5%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

31.0 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

20.0%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

47.6 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$87,881

The average monitored road in Iredell County, North Carolina carries 7,201 vehicles per day. Across its 615 miles of monitored roads, that adds up to 5,678,199 vehicle-miles traveled per day (≈2.1 billion per year). At 11.5%, the truck share runs above the 8.7% across North Carolina: about 1 in 9 vehicles.

Busier roads than 82% of counties in North Carolina

Iredell's average daily traffic volume is 14% higher than the state average - 7,201 vehicles per day against 6,332 - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 2.1% of North Carolina's statewide total. 82% of counties in North Carolina see less traffic than Iredell's 7,201 vehicles per day.

The average trip takes 31.0 minutes, on par with the state level. On travel time, Iredell runs shorter than 69% of counties in North Carolina.

The congestion ratio of 20.0% runs slightly higher than the state level (8% higher).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Iredell County, North Carolina

Trafficvehicles per day18,246
Trucks16.8%
Average travel time44.5 min
Congestion ratio32.4%
Drivers’ average age47.7 yrs
Drivers’ average income$80,679

Highways carry more than half of all travel in Iredell County, North Carolina (57% of vehicle-miles). The average highway carries 18,246 vehicles per day, 170% more than the average non-highway road in the same area, which carries 6,753 vehicles per day.

With 27% of the road miles (166 miles in 520 segments), highways punch above their length, carrying 3,231,778 vehicle-miles traveled per day (≈1.2 billion per year).

92% of counties in North Carolina move less traffic on their highways.

More highway trucks than 95% of counties in North Carolina

The concentration of trucks on highways (16.8%) is 39% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 88% of counties in North Carolina. 95% of counties in North Carolina see fewer highway trucks per day than Iredell's roughly 3,060.

non-highway traffic icon

Non-highway Traffic in Iredell County, North Carolina

Trafficvehicles per day6,753
Trucks4.5%
Average travel time30.5 min
Congestion ratio19.5%
Drivers’ average age47.6 yrs
Drivers’ average income$92,312

Local roads carry a significant share of travel in Iredell County, North Carolina: 43% of all vehicle-miles. The average non-highway road carries 6,753 vehicles per day.

Spread over 449 miles and 12,836 segments, 73% of the road network, local roads carry a lighter load per mile: 2,446,420 vehicle-miles traveled per day (≈893 million per year). The truck share on non-highway roads is 4.5%.

Drivers from higher-income areas than 91% of counties in North Carolina

Compared to highways, non-highway routes see 73% fewer trucks by share.

Non-highway congestion (19.5%) runs slightly higher than the state level (10% higher).

91% of counties in North Carolina see lower average driver income among trip origins than Iredell. Iredell's median driver age is lower than 68% of counties in North Carolina.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and PM peak 5:00 PM–6:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 12% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +4% versus the annual average.
Lowest month:
January is the quietest month, with volumes -11% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Iredell County, North Carolina, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.

Iredell County vs. North Carolina Traffic Comparison

Of the four measures, highway truck share differs most: Iredell County runs 39% above the North Carolina average. Its truck share is also 32% above.

MetricIredell CountyNorth Carolina averageDifference
Traffic7,2016,332+13.7%
Truck % (Total Traffic)11.5%8.7%+31.6%
Truck % (Highway)16.8%12.1%+38.8%
Avg. Travel Time31.0 min32.3 min-3.9%

How Iredell County compares

Iredell County moves more traffic than any nearby county

Set against the average of the 4 areas nearest to it, Iredell County is 43.5% more congested and moves 2.4 times the total daily travel; it has the second busiest roads of the five. It is where traffic concentrates in this corner of the map - the local bottleneck, with more vehicles per road AND less room to absorb them.

Iredell County and the 4 nearest county-level areas by centroid distance, with the North Carolina average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Iredell County7,20111.5%5,678,19931.0 min20.0%
Catawba County, North Carolina7,2598.1%4,070,87832.5 min19.1%
Alexander County, North Carolina3,6846.3%463,86430.1 min11.7%
Rowan County, North Carolina4,96310.3%3,634,48731.9 min13.9%
Davie County, North Carolina3,04010.6%1,413,67631.0 min11.1%
North Carolina average6,3328.7%N/A32.3 min18.6%

Iredell County ranked within North Carolina

Highway truck volume places Iredell County #6 of 97 in North Carolina - the top quarter of the state.

Iredell County ranked among 100 county-level areas in North Carolina (1 = highest); measures without data in every county rank a smaller field, down to 97.
MeasureIredell CountyNorth Carolina rank
Traffic volume (AADT)7,201#19 of 100
Highway vehicle-miles per day3,231,778#9 of 97
Truck share on highways16.8%#13 of 97
Highway trucks per day3,060#6 of 97
Average travel time31.0 min#69 of 100
Average driver income$87,881#10 of 100
Average driver age47.6 yrs#68 of 100

Busiest roads in Iredell County, North Carolina

Traffic concentrates on a few corridors: the three busiest roads average 45,329 vehicles a day, against 7,201 on the average road in Iredell County.

I 77 is the busiest road, at 60,732 vehicles a day, 8,077 of them trucks (13.3%). No other road comes close: I 40, in second place, carries 38,304. It also carries the most trucks.

Drivers on Brawley School Road come from neighborhoods with an average household income of $141,377, 61% above the county average of $87,881, while those on Taylorsville Road average $64,245, 27% below it.

Trips using I 40 are long: a median of 50.2 minutes against 31.0 county-wide, the mark of a through route.

Few trucks use Plaza Drive: 4.4% of its traffic, under half the county's 11.5%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 77Motorway · 60,732vehicles8,077trucks · 13.3%
Road class
Motorway
Congestion ratio
53.9%
Median trip time
37.1 min
Drivers’ median age
46.6 yrs
Drivers’ average income
$109,168

I 77 is one of the more congested roads here: trips take 54% longer than at free-flow speed, against 20% county-wide.

2I 40Motorway · 38,304vehicles6,683trucks · 17.4%
Road class
Motorway
Congestion ratio
35.5%
Median trip time
50.2 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$69,228

Trucks make up 17.4% of I 40's traffic, against 11.5% across the county, so freight weighs heavily here.

3Plaza DrivePrimary road · 36,952vehicles1,635trucks · 4.4%
Road class
Primary road
Congestion ratio
46.8%
Median trip time
32.6 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$91,488

Plaza Drive carries 5.1 times the county average on its busiest stretch, where the median trip lasts 32.6 minutes.

4Brawley School RoadSecondary road · 27,888vehicles943trucks · 3.4%
Road class
Secondary road
Congestion ratio
38.5%
Median trip time
27.3 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$141,377

Brawley School Road carries 3.9 times the county average at its busiest, 943 of them trucks (3.4%, below the county-wide 11.5%).

5River HighwayPrimary road · 26,736vehicles1,142trucks · 4.3%
Road class
Primary road
Congestion ratio
55.9%
Median trip time
31.5 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$104,014

Delays build on River Highway: its congestion ratio of 56% over free-flow time is well above the county's 20%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 77Motorway · #1 by traffic60,732vehicles8,077trucks · 13.3%
2I 40Motorway · #2 by traffic38,304vehicles6,683trucks · 17.4%
3Salisbury HighwayTrunk road · 20,692vehicles1,993trucks · 9.6%
Road class
Trunk road
Congestion ratio
29.2%
Median trip time
37.5 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$64,972

Salisbury Highway carries 2.9 times the county average on its busiest stretch, where the median trip lasts 37.5 minutes.

4US 70Trunk road · 11,927vehicles1,815trucks · 15.2%
Road class
Trunk road
Congestion ratio
14.1%
Median trip time
43.8 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$65,829

Drivers on US 70 are on long journeys, a median 43.8 minutes against 31.0 county-wide: a through route more than a local street.

5Taylorsville RoadTrunk road · 17,306vehicles1,656trucks · 9.6%
Road class
Trunk road
Congestion ratio
21.7%
Median trip time
29.1 min
Drivers’ median age
48.4 yrs
Drivers’ average income
$64,245

At 2.4 times the county average, Taylorsville Road draws drivers from neighborhoods averaging $64,245 in household income.

How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

Data Sources & Methodology

The data presented on this page is derived from TrafficZoom's proprietary analytics platform, which aggregates and normalizes information from multiple sources, including:

Mobile device location data (anonymized and aggregated)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

IredellDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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Counties near Iredell County

The same traffic breakdown for the areas closest to Iredell County, North Carolina.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.