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Traffic heat map of Massac County, Illinois: 132 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 24 and 12th Street

Massac County, Illinois Traffic Counts

How busy are the roads of Massac County, Illinois? We measure 132 road miles, divided into 1,300 segments, with multi-sourced, cross-verified mobile and sensor data. About 1 in 5 vehicles here is a truck, against 1 in 10 across Illinois. 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 Massac County, Illinois

Traffic

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

vehicles per day3,447
Trucks

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

19.7%
Average travel time

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

31.6 min
Congestion ratio

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

9.8%
Drivers’ average age

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

51.0 yrs
Drivers’ average income

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

$64,832

A typical monitored road in Massac County, Illinois sees 3,447 vehicles per day, while its 132 miles of monitored roads together handle 542,845 vehicle-miles traveled per day (≈198 million per year). About 1 in 5 vehicles is a truck, well above the 10.2% across Illinois - a freight-heavy mix.

Shorter trips than 83% of counties in Illinois

Massac sees 59% lower average daily traffic volume than the state average (3,447 vehicles per day against 8,480), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 0.2% of Illinois's statewide total of vehicle-miles. 64% of counties in Illinois see less traffic than Massac's 3,447 vehicles per day.

Journey times run 7% lower than the state level, at 31.6 minutes on average. Its average travel time of 31.6 minutes is shorter than 83% of counties in Illinois.

Congestion runs 52% lower than the state level, at a ratio of 9.8%, which means smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Massac County, Illinois

Trafficvehicles per day9,777
Trucks28.1%
Average travel time49.7 min
Congestion ratio22.5%
Drivers’ average age50.8 yrs
Drivers’ average income$67,142

A little more than half of the driving in Massac County, Illinois happens on highways: 60% of all vehicle-miles. The average highway carries 9,777 vehicles per day, 211% more than the average non-highway road in the same area, which carries 3,146 vehicles per day.

With 27% of the road miles (36 miles in 59 segments), highways punch above their length, carrying 327,046 vehicle-miles traveled per day (≈119 million per year).

Higher highway truck share than 85% of counties in Illinois

At 28.1%, highway truck share is 62% higher than the state average. That marks Massac as a major freight corridor, where highway access is what logistics operators compete on.

Massac's highway truck share (28.1%) is higher than 85% of counties in Illinois. 65% of counties in Illinois see fewer highway trucks per day than Massac's roughly 2,742.

non-highway traffic icon

Non-highway Traffic in Massac County, Illinois

Trafficvehicles per day3,146
Trucks7.0%
Average travel time30.7 min
Congestion ratio9.2%
Drivers’ average age51.1 yrs
Drivers’ average income$64,051

A significant share of driving in Massac County, Illinois, 40% of vehicle-miles, happens on local roads. The average non-highway road carries 3,146 vehicles per day.

Spread over 96 miles and 1,241 segments, 73% of the road network, local roads carry a lighter load per mile: 215,799 vehicle-miles traveled per day (≈78.8 million per year). About 1 in 14 vehicles on non-highway roads is a truck (7.0%).

Local congestion 55% below the Illinois average

Compared to highways, non-highway routes see 75% fewer trucks by share.

Non-highway congestion (9.2%) runs 55% lower than the state average, pointing to smoother local traffic flow.

76% of counties in Illinois see higher average driver income among trip origins than Massac. 77% of counties in Illinois have a younger driver population than Massac.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Massac County, Illinois, the peak hour concentrates about 7% of the day's traffic.

Massac County vs. Illinois Traffic Comparison

Massac County's biggest difference from the Illinois average is its truck share, 93% above it. Its highway truck share is also 62% above.

MetricMassac CountyIllinois averageDifference
Traffic3,4478,480-59.4%
Truck % (Total Traffic)19.7%10.2%+93.2%
Truck % (Highway)28.1%17.3%+61.9%
Avg. Travel Time31.6 min34.1 min-7.4%

How Massac County compares

Massac County against nearby counties

Compared with its 4 closest neighbours, Massac County runs 7.1 percentage points more truck traffic; it has the second busiest roads of the five.

Massac County and the 4 nearest county-level areas by centroid distance, with the Illinois average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Massac County3,44719.7%542,84531.6 min9.8%
McCracken County, Kentucky5,7269.5%1,855,58531.6 min14.4%
Pope County, Illinois1,0888.2%75,28439.4 min3.5%
Ballard County, Kentucky1,81610.5%203,63743.4 min10.3%
Johnson County, Illinois2,07422.1%633,70433.6 min7.6%
Illinois average8,48010.2%N/A34.1 min20.6%

Massac County ranked within Illinois

Massac County sits in the top quarter of the Illinois field on truck share on highways, at #13 of 82.

Massac County ranked among 102 county-level areas in Illinois (1 = highest); measures without data in every county rank a smaller field, down to 82.
MeasureMassac CountyIllinois rank
Traffic volume (AADT)3,447#37 of 102
Highway vehicle-miles per day327,046#53 of 82
Truck share on highways28.1%#13 of 82
Highway trucks per day2,742#29 of 82
Average travel time31.6 min#85 of 102
Average driver income$64,832#78 of 102
Average driver age51.0 yrs#24 of 102

The two ends of this table sit far apart: #13 of 82 on truck share on highways, against #85 of 102 on average travel time.

Busiest roads in Massac County, Illinois

On their busiest stretches, the three busiest roads in Massac County carry 11,260 vehicles a day on average, 3.3 times the typical road in the county (3,447).

I 24 leads with 16,531 vehicles a day, 4,636 of them trucks (28.1%). That is 85% more than the next road, 12th Street (8,936). It tops the truck ranking too, with the most trucks.

Trips using I 24 are long: a median of 49.7 minutes against 31.6 county-wide, the mark of a through route.

Few trucks use 12th Street: 5.1% of its traffic, under half the county's 19.7%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 24Motorway · 16,531vehicles4,636trucks · 28.1%
Road class
Motorway
Congestion ratio
22.5%
Median trip time
49.7 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$67,142

I 24 is one of the more congested roads here: trips take 22% longer than at free-flow speed, against 10% county-wide.

212th StreetTertiary road · 8,936vehicles455trucks · 5.1%
Road class
Tertiary road
Congestion ratio
21.7%
Median trip time
29.6 min
Drivers’ median age
50.7 yrs
Drivers’ average income
$60,478

Delays build on 12th Street: its congestion ratio of 22% over free-flow time is well above the county's 10%.

310th StreetPrimary road · 8,314vehicles542trucks · 6.5%
Road class
Primary road
Congestion ratio
13.8%
Median trip time
30.4 min
Drivers’ median age
50.4 yrs
Drivers’ average income
$65,155

On its busiest stretch, 10th Street carries 2.4 times the county average; trucks are 6.5% of it, below the county-wide 19.7%.

4United States Route 45Primary road · 8,139vehicles586trucks · 7.2%
Road class
Primary road
Congestion ratio
13.0%
Median trip time
30.4 min
Drivers’ median age
51.5 yrs
Drivers’ average income
$62,459

United States Route 45 peaks at 8,139 vehicles a day, 2.4 times the county average; trucks are 7.2% of it, below the county-wide 19.7%.

5Ferry StreetPrimary road · 5,929vehicles301trucks · 5.1%
Road class
Primary road
Congestion ratio
7.0%
Median trip time
29.9 min
Drivers’ median age
50.7 yrs
Drivers’ average income
$62,306

Ferry Street carries 72% more than the county average on its busiest stretch, where the median trip lasts 29.9 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 24Motorway · #1 by traffic16,531vehicles4,636trucks · 28.1%
2United States Route 45Primary road · #4 by traffic8,139vehicles586trucks · 7.2%
310th StreetPrimary road · #3 by traffic8,314vehicles542trucks · 6.5%
412th StreetTertiary road · #2 by traffic8,936vehicles455trucks · 5.1%
5US 45Primary road · 5,372vehicles454trucks · 8.4%
Road class
Primary road
Congestion ratio
12.7%
Median trip time
31.8 min
Drivers’ median age
49.8 yrs
Drivers’ average income
$65,938

At 56% more than the county average, US 45 draws drivers from neighborhoods averaging $65,938 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

MassacDepartment 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 Massac County

The same traffic breakdown for the areas closest to Massac County, Illinois.

Need segment-level traffic data?

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