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Traffic heat map of Johnson County, Missouri: 439 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Maguire Street and US 50

Johnson County, Missouri Traffic Counts

Its busiest road, Maguire Street, carries 15,605 vehicles a day, 6.2 times the average road. This page breaks down traffic in Johnson County, Missouri across 439 miles of monitored roads split into 6,376 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 icon

Total Traffic Volume & Performance in Johnson County, Missouri

Traffic

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

vehicles per day2,526
Trucks

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

8.1%
Average travel time

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

31.7 min
Drivers’ average age

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

41.3 yrs
Drivers’ average income

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

$72,131

The average monitored road in Johnson County, Missouri carries 2,526 vehicles per day. Across its 439 miles of monitored roads, that adds up to 1,147,606 vehicle-miles traveled per day (≈419 million per year). Trucks are a smaller part of the mix than across Missouri: 8.1% against 9.8%.

Traffic 55% below the Missouri average

Johnson's average daily traffic volume is 55% lower than the state average - 2,526 vehicles per day against 5,631 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 0.7% of Missouri's statewide total of vehicle-miles. 59% of counties in Missouri see less traffic than Johnson's 2,526 vehicles per day.

The average trip takes 31.7 minutes, on par with the state level. Its average travel time of 31.7 minutes is shorter than 59% of counties in Missouri.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Johnson County, Missouri

Trafficvehicles per day6,171
Trucks9.3%
Average travel time44.3 min
Drivers’ average age43.2 yrs
Drivers’ average income$74,487

A little more than half of the driving in Johnson County, Missouri happens on highways: 60% of all vehicle-miles. The average highway carries 6,171 vehicles per day, 181% more than the average non-highway road in the same area, which carries 2,192 vehicles per day.

Highways make up 24% of the monitored road miles (104 miles, 535 segments), so they carry more than their share: 688,432 vehicle-miles traveled per day (≈251 million per year).

That is more highway travel volume than 68% of counties in Missouri.

Lower highway truck share than 93% of counties in Missouri

At 9.3%, highway truck share is 31% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

93% of counties in Missouri see a higher highway truck share than Johnson's 9.3%. Johnson's highway truck count is lower than 77% of counties in Missouri, at roughly 576 trucks per day.

non-highway traffic icon

Non-highway Traffic in Johnson County, Missouri

Trafficvehicles per day2,192
Trucks6.2%
Average travel time30.6 min
Drivers’ average age39.4 yrs
Drivers’ average income$69,785

A significant share of driving in Johnson County, Missouri, 40% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 2,192 vehicles per day.

Spread over 335 miles and 5,841 segments, 76% of the road network, local roads carry a lighter load per mile: 459,174 vehicle-miles traveled per day (≈168 million per year). The truck share on non-highway roads is 6.2%.

Younger drivers than 98% of counties in Missouri

The concentration of trucks on non-highway roads is 34% lower than on highways.

83% of counties in Missouri see lower average driver income among trip origins than Johnson. Johnson's median driver age is lower than 98% of counties in Missouri.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Johnson County vs. Missouri Traffic Comparison

Johnson County's biggest difference from the Missouri average is its average daily traffic per road, 55% below it. Its highway truck share is also 31% below.

MetricJohnson CountyMissouri averageDifference
Traffic2,5265,631-55.1%
Truck % (Total Traffic)8.1%9.8%-17.8%
Truck % (Highway)9.3%13.4%-30.6%
Avg. Travel Time31.7 min31.3 min+1.4%

How Johnson County compares

Johnson County has the lowest truck share of its nearby counties

Against the 4 nearest areas, Johnson County carries 30.9% less traffic on a typical road; it has the fourth busiest roads of the five. Quieter and more local than the areas around it on both counts: less traffic, and less of what there is arriving by truck.

Johnson County and the 4 nearest county-level areas by centroid distance, with the Missouri average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Johnson County2,5268.1%1,147,60631.7 minN/A
Henry County, Missouri2,66812.4%919,61334.0 minN/A
Lafayette County, Missouri2,43519.7%1,522,59133.5 minN/A
Pettis County, Missouri2,61110.0%923,15933.8 min9.7%
Cass County, Missouri6,9159.4%3,551,79832.0 min25.3%
Missouri average5,6319.8%N/A31.3 min19.4%

Johnson County ranked within Missouri

Average driver age places Johnson County #113 of 115 in Missouri - the bottom quarter of the state.

Johnson County ranked among 115 county-level areas in Missouri (1 = highest); measures without data in every county rank a smaller field, down to 93.
MeasureJohnson CountyMissouri rank
Traffic volume (AADT)2,526#48 of 115
Highway vehicle-miles per day688,432#30 of 93
Truck share on highways9.3%#87 of 93
Highway trucks per day576#72 of 93
Average travel time31.7 min#68 of 115
Average driver income$72,131#20 of 115
Average driver age41.3 yrs#113 of 115

The two ends of this table sit far apart: #20 of 115 on average driver income, against #113 of 115 on average driver age.

Busiest roads in Johnson County, Missouri

The three busiest roads in Johnson County average 12,728 vehicles a day, 5.0 times the county average of 2,526 across all its monitored roads.

Maguire Street leads with 15,605 vehicles a day, 910 of them trucks (5.8%). US 50 carries the most trucks, 1,290 a day (8.8% of its traffic), although it ranks #2 for all traffic.

Trips using US 50 are long: a median of 45.0 minutes against 31.7 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Maguire StreetPrimary road · 15,605vehicles910trucks · 5.8%
Road class
Primary road
Median trip time
31.8 min
Drivers’ median age
41.8 yrs
Drivers’ average income
$63,415

At 6.2 times the county average, Maguire Street draws drivers from neighborhoods averaging $63,415 in household income.

2US 50Trunk road · 14,716vehicles1,290trucks · 8.8%
Road class
Trunk road
Median trip time
45.0 min
Drivers’ median age
43.6 yrs
Drivers’ average income
$74,625

A main artery: US 50's busiest stretch carries 5.8 times the county average; trucks are 8.8% of it, above the county-wide 8.1%.

3PCA RoadSecondary road · 7,863vehicles399trucks · 5.1%
Road class
Secondary road
Median trip time
27.9 min
Drivers’ median age
37.3 yrs
Drivers’ average income
$70,815

PCA Road carries 3.1 times the county average on its busiest stretch, where the median trip lasts 27.9 minutes.

4MO 13 BusinessPrimary road · 6,783vehicles435trucks · 6.4%
Road class
Primary road
Median trip time
30.0 min
Drivers’ median age
39.1 yrs
Drivers’ average income
$69,808

At 2.7 times the county average, MO 13 Business draws drivers from neighborhoods averaging $69,808 in household income.

5Mitchell StreetTertiary road · 6,774vehicles291trucks · 4.3%
Road class
Tertiary road
Median trip time
37.4 min
Drivers’ median age
35.9 yrs
Drivers’ average income
$55,909

The busiest stretch of Mitchell Street carries 2.7 times the county average; trucks are 4.3% of it, below the county-wide 8.1%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 50Trunk road · #2 by traffic14,716vehicles1,290trucks · 8.8%
2Maguire StreetPrimary road · #1 by traffic15,605vehicles910trucks · 5.8%
3MO 13Trunk road · 4,946vehicles563trucks · 11.4%
Road class
Trunk road
Median trip time
40.1 min
Drivers’ median age
41.4 yrs
Drivers’ average income
$74,025

On its busiest stretch, MO 13 carries 2.0 times the county average; trucks are 11.4% of it, above the county-wide 8.1%.

4MO 13 BusinessPrimary road · #4 by traffic6,783vehicles435trucks · 6.4%
5PCA RoadSecondary road · #3 by traffic7,863vehicles399trucks · 5.1%
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

JohnsonDepartment 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 Johnson County

The same traffic breakdown for the areas closest to Johnson County, Missouri.

Need segment-level traffic data?

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