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Traffic heat map of Ogle County, Illinois: 391 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 39

Ogle County, Illinois Traffic Counts

About 1 in 6 vehicles here is a truck, against 1 in 10 across Illinois. This page breaks down traffic in Ogle County, Illinois across 391 miles of monitored roads split into 3,138 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
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 Ogle County, Illinois

Traffic

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

vehicles per day3,532
Trucks

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

16.1%
Average travel time

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

31.8 min
Congestion ratio

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

10.2%
Drivers’ average age

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

48.3 yrs
Drivers’ average income

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

$81,183

Our data shows 3,532 vehicles per day on the average road in Ogle County, Illinois, and 1,600,417 vehicle-miles traveled per day (≈584 million per year) across its 391 miles of monitored roads. About 1 in 6 vehicles is a truck, well above the 10.2% across Illinois - a freight-heavy mix.

Traffic 58% below the Illinois average

At 3,532 vehicles per day, the average monitored road in Ogle carries 58% less traffic than the state average of 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 about 0.7% of Illinois's statewide total of vehicle-miles. 65% of counties in Illinois see less traffic than Ogle's 3,532 vehicles per day.

The average trip takes 31.8 minutes, 7% lower than the state level. 79% of counties in Illinois have a longer average travel time than Ogle's 31.8 minutes.

The congestion ratio of 10.2% is 51% lower, pointing to smoother traffic flow than the state level - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Ogle County, Illinois

Trafficvehicles per day11,292
Trucks25.7%
Average travel time58.8 min
Congestion ratio23.6%
Drivers’ average age47.0 yrs
Drivers’ average income$79,734

Highways carry about half of all travel in Ogle County, Illinois, 45% of vehicle-miles. The average highway carries 11,292 vehicles per day, 242% more than the average non-highway road in the same area, which carries 3,303 vehicles per day.

That comes from just 15% of the monitored road miles: 58 miles in 90 segments, carrying 722,688 vehicle-miles traveled per day (≈264 million per year).

That is more highway travel volume than 65% of counties in Illinois.

More highway trucks than 79% of counties in Illinois

Highway truck concentration here runs 48% higher than the state average, at 25.7%. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 68% of counties in Illinois. Ogle's highway truck count is higher than 79% of counties in Illinois, at roughly 2,898 trucks per day.

non-highway traffic icon

Non-highway Traffic in Ogle County, Illinois

Trafficvehicles per day3,303
Trucks8.2%
Average travel time31.0 min
Congestion ratio9.8%
Drivers’ average age49.0 yrs
Drivers’ average income$81,453

Local roads carry about half of all travel in Ogle County, Illinois, 55% of vehicle-miles. On the average non-highway road, that comes to 3,303 vehicles per day.

Local roads make up 85% of the monitored road miles (333 miles in 3,048 segments) but carry less than their share of travel: 877,729 vehicle-miles traveled per day (≈320 million per year). Trucks make up 8.2% of non-highway traffic, about 1 in 12 vehicles.

Drivers from higher-income areas than 77% of counties in Illinois

The concentration of trucks on non-highway roads is 68% lower than on highways.

At 52% lower than the state level, the non-highway congestion ratio of 9.8% signals easier movement on local roads.

Trip origins here have higher average income than 77% of counties in Illinois. 67% of counties in Illinois have an older driver population than Ogle.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 7:00 AM to 12:00 PM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 13% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +9% versus the annual average.
Lowest month:
February is the quietest month, with volumes -15% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Ogle County, Illinois, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +9% in high season.

Ogle County vs. Illinois Traffic Comparison

Ogle County's biggest difference from the Illinois average is its average daily traffic per road, 58% below it. Its truck share, by contrast, is 58% above.

MetricOgle CountyIllinois averageDifference
Traffic3,5328,480-58.3%
Truck % (Total Traffic)16.1%10.2%+58.0%
Truck % (Highway)25.7%17.3%+48.1%
Avg. Travel Time31.8 min34.1 min-6.7%

How Ogle County compares

Ogle County against nearby counties

Set against the average of the 4 areas nearest to it, Ogle County runs 5.2 percentage points more truck traffic; it has the second busiest roads of the five. Traffic volume here matches the areas around it, but more of that traffic is trucks - a difference in what routes through, not in how much.

Ogle 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
Ogle County3,53216.1%1,600,41731.8 min10.2%
Lee County, Illinois3,01817.2%1,487,96232.4 min8.8%
Winnebago County, Illinois6,4739.7%5,336,85534.9 min19.3%
Stephenson County, Illinois2,9798.1%893,93833.9 min10.1%
Carroll County, Illinois2,1358.5%310,09035.2 min8.0%
Illinois average8,48010.2%N/A34.1 min20.6%

Ogle County ranked within Illinois

Ogle County sits in the bottom quarter of the Illinois field on average travel time, at #81 of 102.

Ogle County ranked among 102 county-level areas in Illinois (1 = highest); measures without data in every county rank a smaller field, down to 82.
MeasureOgle CountyIllinois rank
Traffic volume (AADT)3,532#36 of 102
Highway vehicle-miles per day722,688#29 of 82
Truck share on highways25.7%#27 of 82
Highway trucks per day2,898#18 of 82
Average travel time31.8 min#81 of 102
Average driver income$81,183#24 of 102
Average driver age48.3 yrs#69 of 102

Busiest roads in Ogle County, Illinois

The three busiest roads in Ogle County average 17,525 vehicles a day, 5.0 times the county average of 3,532 across all its monitored roads.

I 39 is the busiest road, at 27,476 vehicles a day, 7,087 of them trucks (25.8%). No other road comes close: Ronald Reagan Memorial Tollway, in second place, carries 14,551. It also carries the most trucks.

Trips using Ronald Reagan Memorial Tollway are long: a median of 66.5 minutes against 31.8 county-wide, the mark of a through route.

Freight stands out on I 39 and Ronald Reagan Memorial Tollway: trucks are 25.8% and 25.2% of the traffic there, against 16.1% county-wide.

Few trucks use 7th Street: 6.6% of its traffic, under half the county's 16.1%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 39Motorway · 27,476vehicles7,087trucks · 25.8%
Road class
Motorway
Congestion ratio
29.2%
Median trip time
57.6 min
Drivers’ median age
47.0 yrs
Drivers’ average income
$78,788

I 39 is one of the more congested roads here: trips take 29% longer than at free-flow speed, against 10% county-wide.

2Ronald Reagan Memorial TollwayMotorway · 14,551vehicles3,666trucks · 25.2%
Road class
Motorway
Congestion ratio
14.7%
Median trip time
66.5 min
Drivers’ median age
46.9 yrs
Drivers’ average income
$84,223

At 4.1 times the county average, Ronald Reagan Memorial Tollway draws drivers from neighborhoods averaging $84,223 in household income.

37th StreetPrimary road · 10,549vehicles692trucks · 6.6%
Road class
Primary road
Congestion ratio
25.9%
Median trip time
31.0 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$72,749

Delays build on 7th Street: its congestion ratio of 26% over free-flow time is well above the county's 10%.

4IL 38Primary road · 9,748vehicles665trucks · 6.8%
Road class
Primary road
Congestion ratio
10.9%
Median trip time
32.3 min
Drivers’ median age
43.0 yrs
Drivers’ average income
$71,002

The busiest stretch of IL 38 carries 2.8 times the county average; trucks are 6.8% of it, below the county-wide 16.1%.

5May Mart DrivePrimary road · 9,249vehicles539trucks · 5.8%
Road class
Primary road
Congestion ratio
10.8%
Median trip time
32.5 min
Drivers’ median age
45.0 yrs
Drivers’ average income
$73,680

On its busiest stretch, May Mart Drive carries 2.6 times the county average; trucks are 5.8% of it, below the county-wide 16.1%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 39Motorway · #1 by traffic27,476vehicles7,087trucks · 25.8%
2Ronald Reagan Memorial TollwayMotorway · #2 by traffic14,551vehicles3,666trucks · 25.2%
3Blackhawk DrivePrimary road · 8,854vehicles733trucks · 8.3%
Road class
Primary road
Congestion ratio
21.5%
Median trip time
32.7 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$87,235

Blackhawk Drive peaks at 8,854 vehicles a day, 2.5 times the county average; trucks are 8.3% of it, below the county-wide 16.1%.

47th StreetPrimary road · #3 by traffic10,549vehicles692trucks · 6.6%
5IL 251Primary road · 7,456vehicles674trucks · 9.0%
Road class
Primary road
Congestion ratio
16.6%
Median trip time
30.3 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$71,120

IL 251 carries 2.1 times the county average at its busiest, 674 of them trucks (9.0%, below the county-wide 16.1%).

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

OgleDepartment 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 Ogle County

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

Need segment-level traffic data?

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