This page delivers traffic analytics for St. Johns County, Florida. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for St. Johns County, Florida among 704 road miles divided in 11,545 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 322 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.
8,672
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
9.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
29.6 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.
25.9%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
47.9 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$111,435
Our data indicates an estimated average traffic volume of 8,672 vehicles per day in St. Johns County, Florida that results in 8,457,321 vehicle-miles traveled per day (≈3.1 billion per year). The traffic stream is comprised of an average of 1 truck for every 10 vehicles. Typical time spent behind the wheel per trip is 29.6 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Florida state averages: St. Johns's average daily traffic volume is 13% lower than the state average - 8,672 vehicles per day against 9,922 - suggesting less traffic load per road, a critical factor for logistics and site planning. Across the whole network that adds up to 8,457,321 vehicle-miles traveled per day (≈3.1 billion per year), roughly 1.6% of Florida's statewide total. At 29.6 minutes, the average travel time is 11% lower than the state level. Congestion runs 9% higher than the state level, at a ratio of 25.9% - more pronounced congestion - crucial for traffic control improvement and logistics planning. 67% of counties in Florida see less traffic than St. Johns's 8,672 vehicles per day. On travel time, St. Johns runs longer than 2% of counties in Florida.
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.
18,540
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
15.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
41.7 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.
29.3%
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.
$99,957
A significant volume of traffic in St. Johns County, Florida utilizes the highway network. The average highway carries 18,540 vehicles per day, 122% more than the average non-highway road in the same area, which carries 8,363 vehicles per day. That average covers 119 highway road miles divided in 351 segments (average segment length 1,792 ft), together carrying 3,529,548 vehicle-miles traveled per day (≈1.3 billion per year). By highway travel volume, St. Johns outranks 71% of counties in Florida. Trucks constitute 15.2% of highway traffic.
Analytical insight
Highway truck concentration here runs 34% higher than the state average, at 15.2% - positioning St. Johns as a significant freight corridor. For logistics operators, this validates the importance of highway access. St. Johns's highway truck share (15.2%) is higher than 63% of counties in Florida. By raw truck volume, St. Johns carries more highway trucks than 88% of counties in Florida.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
8,363
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
5.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
29.2 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.
25.8%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$114,986
The non-highway road network in St. Johns County, Florida supports a substantial volume of traffic. The average non-highway road carries 8,363 vehicles per day, 55% less than the average highway in the same area, which carries 18,540 vehicles per day. That average covers 585 non-highway road miles divided in 11,194 segments (average segment length 276 ft), together carrying 4,927,773 vehicle-miles traveled per day (≈1.8 billion per year). Trucks constitute 5.6% of non-highway traffic.
Analytical insight
Non-highway roads carry a truck concentration that's 63% lower than the highway network. The non-highway congestion ratio of 25.8% is 14% higher than the state level, suggesting slower local mobility than the state average. 2% of counties in Florida see shorter overall travel times than St. Johns. St. Johns also has the highest average driver income in Florida among trip origins - $111,435. The driver population here skews older than 42% of counties in Florida.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekend volumes run about 20% below weekday levels.
Seasonal Fluctuation
Busy season:
February–April is the high season, with volumes +10% versus the annual average.
Lowest month:
June is the quietest month, with volumes -19% versus the annual average.
Analytical insight
In St. Johns County, Florida, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +10% in high season.
Traffic Flow Profile Comparison
Metric
St. Johns
Florida
Average
Difference
Traffic
8,672
9,922
-12.6%
Truck % (Total Traffic)
9.6%
8.6%
+11.6%
Truck % (Highway)
15.2%
11.3%
+33.9%
Avg. Travel Time
29.6 min
33.2 min
-10.9%
Frequently Asked Questions
The average daily traffic volume is calculated at 8,672 vehicles per day, providing a baseline for daily operations and site assessment.
Yes - St. Johns has the highest average driver income of any county in Florida, at $111,435.
Weekday peaks occur between 7:00 AM and 9:00 AM in the morning and between 4:00 PM and 6:00 PM in the evening - about 77% above the daily average.
Drivers on St. Johns roads have a median age of 48 years, and the median household income of the neighborhoods trips originate from averages $111,435 - useful context for retail siting and customer profiling.
The average travel time for drivers is 29.6 minutes, offering a standard metric for commute and delivery route planning.
Trucks account for approximately 9.6% of the total traffic mix across all road types, with a significantly higher concentration of 15.2% on highways.
Approximately 34% of highway traffic and 10% of non-highway traffic consists of vehicles whose trip originates outside St. Johns County, Florida. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
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)
