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Traffic heat map of Perry County, Illinois: 158 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Washington Street and Water Street

Perry County, Illinois Traffic Counts

TrafficZoom tracks traffic on 158 road miles in Perry County, Illinois, divided into 1,565 segments averaging 535 ft. The average road here carries 3,054 vehicles a day, 64% less than the Illinois average of 8,480. 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 Perry County, Illinois

Traffic

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

vehicles per day3,054
Trucks

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

8.5%
Average travel time

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

36.1 min
Congestion ratio

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

8.9%
Drivers’ average age

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

47.2 yrs
Drivers’ average income

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

$65,200

Our data shows 3,054 vehicles per day on the average road in Perry County, Illinois, and 377,765 vehicle-miles traveled per day (≈138 million per year) across its 158 miles of monitored roads. Trucks are a smaller part of the mix than across Illinois: 8.5% against 10.2%.

Longer trips than 82% of counties in Illinois

Perry sees 64% lower average daily traffic volume than the state average (3,054 vehicles per day against 8,480), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Perry accounts for about 0.2% of Illinois's statewide total of vehicle-miles. 53% of counties in Illinois see less traffic than Perry's 3,054 vehicles per day.

Journey times run 6% higher than the state level, at 36.1 minutes on average. 82% of counties in Illinois have a shorter average travel time than Perry's 36.1 minutes.

Congestion runs 57% lower than the state level, at a ratio of 8.9%, which means smoother traffic flow - delays are rare enough to plan travel times almost to the minute.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Perry County vs. Illinois Traffic Comparison

Of the four measures, average daily traffic per road differs most: Perry County runs 64% below the Illinois average. Its truck share is also 17% below.

MetricPerry CountyIllinois averageDifference
Traffic3,0548,480-64.0%
Truck % (Total Traffic)8.5%10.2%-16.6%
Avg. Travel Time36.1 min34.1 min+5.9%

How Perry County compares

Perry County moves the least traffic of its nearby counties

Compared with its 4 closest neighbours, Perry County moves 39.7% of the total daily travel; it has the fourth busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Perry 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
Perry County3,0548.5%377,76536.1 min8.9%
Washington County, Illinois2,99418.7%1,213,45540.5 min6.9%
Jackson County, Illinois3,2956.4%904,75534.3 min8.8%
Franklin County, Illinois3,54616.2%1,158,25633.3 min10.5%
Randolph County, Illinois3,5857.7%530,32833.8 min11.0%
Illinois average8,48010.2%N/A34.1 min20.6%

Perry County ranked within Illinois

Average travel time places Perry County #19 of 102 in Illinois - the top quarter of the state.

Perry County ranked among 102 county-level areas in Illinois (1 = highest).
MeasurePerry CountyIllinois rank
Traffic volume (AADT)3,054#48 of 102
Average travel time36.1 min#19 of 102
Average driver income$65,200#76 of 102
Average driver age47.2 yrs#79 of 102

Busiest roads in Perry County, Illinois

On their busiest stretches, the three busiest roads in Perry County carry 7,729 vehicles a day on average, 2.5 times the typical road in the county (3,054).

Washington Street leads with 8,228 vehicles a day, 488 of them trucks (5.9%). Water Street is practically level with it at 8,153. Main Street carries the most trucks, 517 a day (7.6% of its traffic), although it ranks #3 for all traffic.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Washington StreetPrimary road · 8,228vehicles488trucks · 5.9%
Road class
Primary road
Congestion ratio
12.3%
Median trip time
29.4 min
Drivers’ median age
46.1 yrs
Drivers’ average income
$56,577

Washington Street carries 2.7 times the county average at its busiest, 488 of them trucks (5.9%, below the county-wide 8.5%).

2Water StreetSecondary road · 8,153vehicles499trucks · 6.1%
Road class
Secondary road
Congestion ratio
18.8%
Median trip time
38.6 min
Drivers’ median age
49.8 yrs
Drivers’ average income
$67,029

Delays build on Water Street: its congestion ratio of 19% over free-flow time is well above the county's 9%.

3Main StreetPrimary road · 6,807vehicles517trucks · 7.6%
Road class
Primary road
Congestion ratio
15.9%
Median trip time
41.9 min
Drivers’ median age
45.6 yrs
Drivers’ average income
$66,775

Travel on Main Street's busiest stretch runs 16% over free-flow time, against 9% across the county, so expect slower peak hours.

4Hickory StreetPrimary road · 5,654vehicles424trucks · 7.5%
Road class
Primary road
Congestion ratio
13.0%
Median trip time
29.6 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$56,833

At 85% more than the county average, Hickory Street draws drivers from neighborhoods averaging $56,833 in household income.

5Kennedy DriveSecondary road · 5,345vehicles383trucks · 7.2%
Road class
Secondary road
Congestion ratio
12.3%
Median trip time
38.7 min
Drivers’ median age
49.9 yrs
Drivers’ average income
$67,307

Kennedy Drive is busy by local standards, at 75% more than the county average on its busiest stretch; trucks are 7.2% of it, below the county-wide 8.5%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Main StreetPrimary road · #3 by traffic6,807vehicles517trucks · 7.6%
2Water StreetSecondary road · #2 by traffic8,153vehicles499trucks · 6.1%
3Washington StreetPrimary road · #1 by traffic8,228vehicles488trucks · 5.9%
4IL 13 / IL 127Primary road · 4,500vehicles426trucks · 9.5%
Road class
Primary road
Congestion ratio
12.3%
Median trip time
46.6 min
Drivers’ median age
44.6 yrs
Drivers’ average income
$67,926

IL 13 / IL 127 peaks at 4,500 vehicles a day, 47% more than the county average; trucks are 9.5% of it, above the county-wide 8.5%.

5Hickory StreetPrimary road · #4 by traffic5,654vehicles424trucks · 7.5%
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

PerryDepartment 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 Perry County

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

Need segment-level traffic data?

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