This page delivers traffic analytics for St. Louis City, Missouri. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for St. Louis City, Missouri among 368 road miles divided in 13,972 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 139 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.
9,825
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
7.9%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
34.9 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.
29.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
43.7 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$72,855
Our data indicates an estimated average traffic volume of 9,825 vehicles per day in St. Louis City, Missouri that results in 4,407,539 vehicle-miles traveled per day (≈1.6 billion per year). The traffic stream is comprised of an average of 1 truck for every 13 vehicles. Typical time spent behind the wheel per trip is 34.9 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Missouri state averages: St. Louis sees 74% higher average daily traffic volume than the state average (9,825 vehicles per day against 5,631), suggesting more demand on each road - a critical factor for logistics and site planning. Across the whole network that adds up to 4,407,539 vehicle-miles traveled per day (≈1.6 billion per year), roughly 2.5% of Missouri's statewide total. Journey times run 12% higher than the state level, at 34.9 minutes on average. At 49% higher than the state level, the 29.0% congestion ratio signals more pronounced congestion - crucial for traffic control improvement and logistics planning. 98% of counties in Missouri see less traffic than St. Louis's 9,825 vehicles per day. 82% of counties in Missouri have a shorter average travel time than St. Louis's 34.9 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.
26,232
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
11.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
35.2 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.
33.9%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
45.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$81,144
A significant volume of traffic in St. Louis City, Missouri utilizes the highway network. The average highway carries 26,232 vehicles per day, 185% more than the average non-highway road in the same area, which carries 9,210 vehicles per day. That average covers 71 highway road miles divided in 505 segments (average segment length 738 ft), together carrying 2,054,755 vehicle-miles traveled per day (≈750 million per year). By highway travel volume, St. Louis outranks 91% of counties in Missouri. Trucks constitute 11.7% of highway traffic.
Analytical insight
The concentration of trucks on highways (11.7%) is 13% lower than the state average for similar road classifications. This indicates St. Louis serves as a primarily local traffic hub. For logistics operators, this validates the importance of local access. St. Louis's highway truck share (11.7%) is higher than 25% of counties in Missouri. 96% of counties in Missouri see fewer highway trucks per day than St. Louis's roughly 3,072.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
9,210
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
4.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
34.9 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.
28.8%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
41.6 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$66,029
The non-highway road network in St. Louis City, Missouri supports a substantial volume of traffic. The average non-highway road carries 9,210 vehicles per day, 65% less than the average highway in the same area, which carries 26,232 vehicles per day. That average covers 297 non-highway road miles divided in 13,467 segments (average segment length 117 ft), together carrying 2,352,783 vehicle-miles traveled per day (≈859 million per year). Trucks constitute 4.6% of non-highway traffic.
Analytical insight
Non-highway roads carry a truck concentration that's 61% lower than the highway network. Non-highway congestion (28.8%) runs 54% higher than the state average, pointing to slower local traffic flow. St. Louis's overall average travel time exceeds 82% of counties in Missouri. 84% of counties in Missouri see lower average driver income among trip origins than St. Louis. 4% of counties in Missouri have a younger driver population than St. Louis.
Time-of-Day & Seasonal Patterns
Analytical insight
In St. Louis City, Missouri, the peak hour concentrates about 6% of the day's traffic.
Traffic Flow Profile Comparison
Metric
St. Louis
Missouri
Average
Difference
Traffic
9,825
5,631
+74.5%
Truck % (Total Traffic)
7.9%
9.8%
-19.7%
Truck % (Highway)
11.7%
13.4%
-12.9%
Avg. Travel Time
34.9 min
31.3 min
+11.6%
Frequently Asked Questions
The average daily traffic volume is calculated at 9,825 vehicles per day, providing a baseline for daily operations and site assessment.
The driver population in St. Louis skews older than 4% of counties in Missouri.
Approximately 56% of highway traffic and 9% of non-highway traffic consists of vehicles whose trip originates outside St. Louis City, Missouri. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
Trucks account for approximately 7.9% of the total traffic mix across all road types, with a significantly higher concentration of 11.7% on highways.
Drivers on St. Louis roads have a median age of 44 years, and the median household income of the neighborhoods trips originate from averages $72,855 - useful context for retail siting and customer profiling.
The average travel time for drivers is 34.9 minutes, offering a standard metric for commute and delivery route planning.
Weekday peaks occur between 7:00 AM and 12:00 PM in the morning and between 3:00 PM and 7:00 PM in the evening - about 44% 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)
