This page delivers traffic analytics for St. Charles County, Missouri. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for St. Charles County, Missouri among 831 road miles divided in 19,475 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 225 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
The average number of vehicles that travel each day over any road in the road network.
12,653
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
6.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
29.1 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
32.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
46.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$105,931
Our data indicates an estimated average traffic volume of 12,653 vehicles per day in St. Charles County, Missouri that results in 11,743,703 vehicle-miles traveled per day (≈4.3 billion per year). The traffic stream is comprised of an average of 1 truck for every 16 vehicles. Typical time spent behind the wheel per trip is 29.1 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Missouri state averages: At 12,653 vehicles per day, the average monitored road in St. Charles carries 125% more traffic than the state average of 5,631 vehicles per day - a critical factor for logistics and site planning. Across the whole network that adds up to 11,743,703 vehicle-miles traveled per day (≈4.3 billion per year), roughly 6.8% of Missouri's statewide total. At 29.1 minutes, the average travel time is 7% lower than the state level. The congestion ratio of 32.7% is 68% higher, pointing to more pronounced congestion than the state level - crucial for traffic control improvement and logistics planning. At 12,653 vehicles per day, St. Charles posts the highest average traffic volume in Missouri. 11% of counties in Missouri have a shorter average travel time than St. Charles's 29.1 minutes.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
33,555
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.9%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
33.5 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
58.6%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
46.6 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$102,863
A significant volume of traffic in St. Charles County, Missouri utilizes the highway network. The average highway carries 33,555 vehicles per day, 182% more than the average non-highway road in the same area, which carries 11,880 vehicles per day. That average covers 167 highway road miles divided in 694 segments (average segment length 1,269 ft), together carrying 5,923,696 vehicle-miles traveled per day (≈2.2 billion per year). By highway travel volume, that ranks St. Charles in the top 3 counties in Missouri. Trucks constitute 8.9% of highway traffic.
Analytical insight
At 8.9%, highway truck share is 34% lower than the state average, marking St. Charles as a primarily local traffic hub - underscoring the importance of local access for logistics operators. By truck concentration, highways here outrank 3% of counties in Missouri. 90% of counties in Missouri see fewer highway trucks per day than St. Charles's roughly 2,996.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
11,880
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
3.5%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
29.0 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
31.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
46.9 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$108,985
The non-highway road network in St. Charles County, Missouri supports a substantial volume of traffic. The average non-highway road carries 11,880 vehicles per day, 65% less than the average highway in the same area, which carries 33,555 vehicles per day. That average covers 664 non-highway road miles divided in 18,781 segments (average segment length 187 ft), together carrying 5,820,006 vehicle-miles traveled per day (≈2.1 billion per year). Trucks constitute 3.5% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 61% fewer trucks by share. The non-highway congestion ratio of 31.7% is 70% higher than the state level, suggesting slower local mobility than the state average. Overall, average travel time here is longer than 11% of counties in Missouri. St. Charles also has the highest average driver income in Missouri among trip origins - $105,931. 21% of counties in Missouri have a younger driver population than St. Charles.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and PM peak 3:00 PM–7:00 PM, with volumes reaching approximately 73% higher than the daily average.
Weekend traffic:
Weekend volumes run about 21% below weekday levels.
Seasonal Fluctuation
Busy season:
April–June is the high season, with volumes +5% versus the annual average.
Lowest month:
January is the quietest month, with volumes -14% versus the annual average.
Analytical insight
In St. Charles County, Missouri, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +5% in high season.
Traffic Flow Profile Comparison
Metric
St. Charles
Missouri
Average
Difference
Traffic
12,653
5,631
+124.7%
Truck % (Total Traffic)
6.2%
9.8%
-36.4%
Truck % (Highway)
8.9%
13.4%
-33.6%
Avg. Travel Time
29.1 min
31.3 min
-6.9%
Frequently Asked Questions
The average daily traffic volume is calculated at 12,653 vehicles per day, providing a baseline for daily operations and site assessment.
Yes - St. Charles has the highest average traffic volume of any county in Missouri, at 12,653 vehicles per day.
Trucks account for approximately 6.2% of the total traffic mix across all road types, with a significantly higher concentration of 8.9% on highways.
Approximately 25% of highway traffic and 5% of non-highway traffic consists of vehicles whose trip originates outside St. Charles County, Missouri. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
Drivers on St. Charles roads have a median age of 47 years, and the median household income of the neighborhoods trips originate from averages $105,931 - useful context for retail siting and customer profiling.
The average travel time for drivers is 29.1 minutes, offering a standard metric for commute and delivery route planning.
Traffic volumes are typically 5% higher during April–June. Volumes drop to their lowest levels in January, averaging 10,860 vehicles per day - a 14% decrease from the annual average.
Weekday peaks occur between 7:00 AM and 8:00 AM in the morning and between 3:00 PM and 7:00 PM in the evening - about 73% above the daily average.
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)
