Need segment-level traffic data?

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

Get insights →
Traffic heat map of Jo Daviess County, Illinois: 228 miles of roads shaded from blue (light) to red (heavy traffic)

Jo Daviess County, Illinois Traffic Counts

How busy are the roads of Jo Daviess County, Illinois? We measure 228 road miles, divided into 2,492 segments, with multi-sourced, cross-verified mobile and sensor data. The average road here carries 2,229 vehicles a day, 74% less than the Illinois average of 8,480. 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
Find my place
total traffic icon

Total Traffic Volume & Performance in Jo Daviess County, Illinois

Traffic

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

vehicles per day2,229
Trucks

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

10.8%
Average travel time

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

33.7 min
Congestion ratio

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

6.9%
Drivers’ average age

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

53.6 yrs
Drivers’ average income

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

$75,711

Our data shows 2,229 vehicles per day on the average road in Jo Daviess County, Illinois, and 485,594 vehicle-miles traveled per day (≈177 million per year) across its 228 miles of monitored roads. Trucks are 10.8% of traffic, close to the 10.2% across Illinois.

Traffic 74% below the Illinois average

At 2,229 vehicles per day, the average monitored road in Jo Daviess carries 74% less traffic than the state average of 8,480, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Jo Daviess accounts for about 0.2% of Illinois's statewide total of vehicle-miles. Jo Daviess carries less traffic than 77% of counties in Illinois.

The average trip takes 33.7 minutes, on par with the state level. Its average travel time of 33.7 minutes is shorter than 52% of counties in Illinois.

Congestion runs 67% lower than the state level, at a ratio of 6.9%, 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 Jo Daviess County, Illinois

Trafficvehicles per day6,254
Trucks11.8%
Average travel time41.2 min
Congestion ratio16.0%
Drivers’ average age53.4 yrs
Drivers’ average income$76,415

A little more than half of the driving in Jo Daviess County, Illinois happens on highways: 67% of all vehicle-miles. The average highway carries 6,254 vehicles per day, 439% more than the average non-highway road in the same area, which carries 1,160 vehicles per day.

With 24% of the road miles (56 miles in 523 segments), highways punch above their length, carrying 322,932 vehicle-miles traveled per day (≈118 million per year).

Lower highway truck share than 85% of counties in Illinois

At 11.8%, highway truck share is 32% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

By truck concentration, highways here trail 85% of counties in Illinois. By raw truck volume, Jo Daviess carries fewer highway trucks than 84% of counties in Illinois.

non-highway traffic icon

Non-highway Traffic in Jo Daviess County, Illinois

Trafficvehicles per day1,160
Trucks8.7%
Average travel time31.7 min
Congestion ratio4.5%
Drivers’ average age55.0 yrs
Drivers’ average income$74,201

Local roads carry a significant share of travel in Jo Daviess County, Illinois: 33% of all vehicle-miles. The average non-highway road carries 1,160 vehicles per day.

Spread over 172 miles and 1,969 segments, 76% of the road network, local roads carry a lighter load per mile: 162,662 vehicle-miles traveled per day (≈59.4 million per year). The truck share on non-highway roads is 8.7%.

Older drivers than 96% of counties in Illinois

Non-highway roads carry a truck concentration that's 27% lower than the highway network.

At 78% lower than the state level, the non-highway congestion ratio of 4.5% signals easier movement on local roads.

Jo Daviess's average driver income is higher than 60% of counties in Illinois. 96% of counties in Illinois have a younger driver population than Jo Daviess.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Jo Daviess County, Illinois, the peak hour concentrates about 8% of the day's traffic.

Jo Daviess County vs. Illinois Traffic Comparison

The average daily traffic per road sets Jo Daviess County apart: 74% below the Illinois average. Its highway truck share is also 32% below.

MetricJo Daviess CountyIllinois averageDifference
Traffic2,2298,480-73.7%
Truck % (Total Traffic)10.8%10.2%+5.7%
Truck % (Highway)11.8%17.3%-31.9%
Avg. Travel Time33.7 min34.1 min-1.2%

How Jo Daviess County compares

Jo Daviess County against nearby counties

Jo Daviess County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the second busiest roads of the five.

Jo Daviess 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
Jo Daviess County2,22910.8%485,59433.7 min6.9%
Lafayette County, Wisconsin1,35510.8%451,71936.9 min6.1%
Carroll County, Illinois2,1358.5%310,09035.2 min8.0%
Jackson County, Iowa1,54810.3%478,96834.1 min6.6%
Stephenson County, Illinois2,9798.1%893,93833.9 min10.1%
Illinois average8,48010.2%N/A34.1 min20.6%

Jo Daviess County ranked within Illinois

Average driver age places Jo Daviess County #5 of 102 in Illinois - the top quarter of the state.

Jo Daviess County ranked among 102 county-level areas in Illinois (1 = highest); measures without data in every county rank a smaller field, down to 82.
MeasureJo Daviess CountyIllinois rank
Traffic volume (AADT)2,229#79 of 102
Highway vehicle-miles per day322,932#54 of 82
Truck share on highways11.8%#70 of 82
Highway trucks per day739#69 of 82
Average travel time33.7 min#53 of 102
Average driver income$75,711#41 of 102
Average driver age53.6 yrs#5 of 102

Jo Daviess County ranks #5 of 102 on average driver age but #70 of 82 on truck share on highways - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Jo Daviess County, Illinois

The top three roads on this list in Jo Daviess County average 10,630 vehicles a day, 4.8 times the county average of 2,229 across all its monitored roads.

Sinsinawa Avenue tops the list with 14,033 vehicles a day, 1,798 of them trucks (12.8%). It tops the truck ranking too, with the most trucks on the list.

Madison Street carries longer journeys than most roads here, with a median trip of 51.6 minutes against 33.7 county-wide.

Ranked by daily traffic (AADT)

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1Sinsinawa AvenueTrunk road · 14,033vehicles1,798trucks · 12.8%
Road class
Trunk road
Median trip time
28.4 min
Drivers’ median age
51.0 yrs
Drivers’ average income
$76,399

A main artery: Sinsinawa Avenue's busiest stretch carries 6.3 times the county average; trucks are 12.8% of it, above the county-wide 10.8%.

2US 20Trunk road · 9,800vehicles1,216trucks · 12.4%
Road class
Trunk road
Congestion ratio
13.4%
Median trip time
36.8 min
Drivers’ median age
51.7 yrs
Drivers’ average income
$76,505

The busiest stretch of US 20 carries 4.4 times the county average; trucks are 12.4% of it, above the county-wide 10.8%.

3Spring StreetTrunk road · 8,056vehicles846trucks · 10.5%
Road class
Trunk road
Congestion ratio
23.3%
Median trip time
36.9 min
Drivers’ median age
54.2 yrs
Drivers’ average income
$79,023

Travel on Spring Street's busiest stretch runs 23% over free-flow time, against 7% across the county, so expect slower peak hours.

4North AvenueTrunk road · 7,130vehicles636trucks · 8.9%
Road class
Trunk road
Congestion ratio
19.9%
Median trip time
45.7 min
Drivers’ median age
54.8 yrs
Drivers’ average income
$67,655

North Avenue carries through traffic: the median trip using it lasts 45.7 minutes, against 33.7 for the county.

5Madison StreetTrunk road · 7,041vehicles741trucks · 10.5%
Road class
Trunk road
Median trip time
51.6 min
Drivers’ median age
54.1 yrs
Drivers’ average income
$73,279

On its busiest stretch, Madison Street carries 3.2 times the county average; trucks are 10.5% of it, in line with the county-wide 10.8%.

Ranked by trucks per day

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1Sinsinawa AvenueTrunk road · #1 by traffic14,033vehicles1,798trucks · 12.8%
2US 20Trunk road · #2 by traffic9,800vehicles1,216trucks · 12.4%
3South LaneTrunk road · 5,849vehicles848trucks · 14.5%
Road class
Trunk road
Congestion ratio
14.5%
Median trip time
35.5 min
Drivers’ median age
50.5 yrs
Drivers’ average income
$75,756

South Lane peaks at 5,849 vehicles a day, 2.6 times the county average; trucks are 14.5% of it, above the county-wide 10.8%.

4Spring StreetTrunk road · #3 by traffic8,056vehicles846trucks · 10.5%
5Decatur StreetTrunk road · 6,931vehicles754trucks · 10.9%
Road class
Trunk road
Congestion ratio
20.5%
Median trip time
38.8 min
Drivers’ median age
55.1 yrs
Drivers’ average income
$81,648

Decatur Street is one of the more congested roads here: trips take 21% longer than at free-flow speed, against 7% county-wide.

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

Jo DaviessDepartment 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.
link arrow icon
Data current as of:
Q3 2026

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

Counties near Jo Daviess County

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

Need segment-level traffic data?

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