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Traffic heat map of Calhoun County, Illinois: 95 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Hardin Bridge and Park Street

Calhoun County, Illinois Traffic Counts

TrafficZoom tracks traffic on 95 road miles in Calhoun County, Illinois, divided into 813 segments averaging 614 ft. Its roads are the quietest of any county in Illinois, at 778 vehicles a day on average. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
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 Calhoun County, Illinois

Traffic

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

vehicles per day778
Trucks

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

7.9%
Average travel time

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

30.4 min
Congestion ratio

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

4.5%
Drivers’ average age

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

54.5 yrs
Drivers’ average income

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

$99,101

A typical monitored road in Calhoun County, Illinois sees 778 vehicles per day, while its 95 miles of monitored roads together handle 72,348 vehicle-miles traveled per day (≈26.4 million per year). About 1 in 13 vehicles is a truck, fewer than the 1 in 10 across Illinois.

The quietest roads of any county in Illinois

Calhoun sees 91% lower average daily traffic volume than the state average (778 vehicles per day against 8,480), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries less than 0.1% of Illinois's statewide total of vehicle-miles. At 778 vehicles per day, Calhoun posts the lowest average traffic volume in Illinois.

Journey times run 11% lower than the state level, at 30.4 minutes on average. 95% of counties in Illinois have a longer average travel time than Calhoun's 30.4 minutes.

At 78% lower than the state level, the 4.5% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Calhoun County vs. Illinois Traffic Comparison

Calhoun County's biggest difference from the Illinois average is its average daily traffic per road, 91% below it. Its truck share is also 22% below.

MetricCalhoun CountyIllinois averageDifference
Traffic7788,480-90.8%
Truck % (Total Traffic)7.9%10.2%-22.0%
Avg. Travel Time30.4 min34.1 min-11.0%

How Calhoun County compares

Calhoun County moves the least traffic of its nearby counties

Set against the average of the 4 areas nearest to it, Calhoun County moves 2.0% of the total daily travel and carries 86.9% less traffic on a typical road; it has the quietest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.

Calhoun 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
Calhoun County7787.9%72,34830.4 min4.5%
Jersey County, Illinois3,7789.3%403,93831.4 min10.7%
Lincoln County, Missouri5,0657.9%1,926,24928.6 min9.1%
Greene County, Illinois2,31811.4%229,16835.1 min7.4%
St. Charles County, Missouri12,6536.2%11,743,70329.1 min32.7%
Illinois average8,48010.2%N/A34.1 min20.6%

Calhoun County ranked within Illinois

On average driver age, Calhoun County is among the three highest county-level areas in Illinois.

Calhoun County ranked among 102 county-level areas in Illinois (1 = highest).
MeasureCalhoun CountyIllinois rank
Traffic volume (AADT)778#102 of 102
Average travel time30.4 min#97 of 102
Average driver income$99,101#8 of 102
Average driver age54.5 yrs#3 of 102

Calhoun County ranks #8 of 102 on average driver income but #102 of 102 on average daily traffic volume. Affluent trip origins on quiet roads: spending power per vehicle here is high, the number of vehicles is not.

Busiest roads in Calhoun County, Illinois

The three busiest roads in Calhoun County average 2,729 vehicles a day, 3.5 times the county average of 778 across all its monitored roads.

Hardin Bridge leads with 3,671 vehicles a day, 343 of them trucks (9.3%). It tops the truck ranking too, with the most trucks.

IL 100 carries longer journeys than most roads here, with a median trip of 47.5 minutes against 30.4 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Hardin BridgePrimary road · 3,671vehicles343trucks · 9.3%
Road class
Primary road
Congestion ratio
8.7%
Median trip time
34.4 min
Drivers’ median age
53.2 yrs
Drivers’ average income
$87,180

Hardin Bridge carries 4.7 times the county average on its busiest stretch, where the median trip lasts 34.4 minutes.

2Park StreetTertiary road · 2,733vehicles148trucks · 5.4%
Road class
Tertiary road
Congestion ratio
6.4%
Median trip time
28.0 min
Drivers’ median age
54.9 yrs
Drivers’ average income
$97,415

At 3.5 times the county average, Park Street draws drivers from neighborhoods averaging $97,415 in household income.

3Illinois River RoadPrimary road · 1,784vehicles179trucks · 10.1%
Road class
Primary road
Congestion ratio
5.0%
Median trip time
32.6 min
Drivers’ median age
54.4 yrs
Drivers’ average income
$87,602

The busiest stretch of Illinois River Road carries 2.3 times the county average; trucks are 10.1% of it, above the county-wide 7.9%.

4IL 100Primary road · 1,391vehicles156trucks · 11.2%
Road class
Primary road
Median trip time
47.5 min
Drivers’ median age
53.6 yrs
Drivers’ average income
$85,470

IL 100 carries 79% more than the county average at its busiest, 156 of them trucks (11.2%, above the county-wide 7.9%).

5BroadwayPrimary road · 1,282vehicles143trucks · 11.2%
Road class
Primary road
Congestion ratio
3.4%
Median trip time
47.1 min
Drivers’ median age
54.2 yrs
Drivers’ average income
$85,565

Broadway carries through traffic: the median trip using it lasts 47.1 minutes, against 30.4 for the county.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Hardin BridgePrimary road · #1 by traffic3,671vehicles343trucks · 9.3%
2Illinois River RoadPrimary road · #3 by traffic1,784vehicles179trucks · 10.1%
3IL 100Primary road · #4 by traffic1,391vehicles156trucks · 11.2%
4Park StreetTertiary road · #2 by traffic2,733vehicles148trucks · 5.4%
5BroadwayPrimary road · #5 by traffic1,282vehicles143trucks · 11.2%
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

CalhounDepartment 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 Calhoun County

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

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