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Traffic heat map of Seminole County, Florida: 800 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 4 and FL 436

Seminole County, Florida Traffic Counts

Our Seminole County, Florida traffic data covers 18,649 road segments over 800 road miles, with an average segment of just 226 ft. Its drivers come from neighborhoods among the top 5 counties in Florida for household income. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
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 Seminole County, Florida

Traffic

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

vehicles per day9,476
Trucks

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

5.8%
Average travel time

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

34.0 min
Congestion ratio

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

23.7%
Drivers’ average age

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

43.9 yrs
Drivers’ average income

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

$95,681

The average monitored road in Seminole County, Florida carries 9,476 vehicles per day. Across its 800 miles of monitored roads, that adds up to 9,961,200 vehicle-miles traveled per day (≈3.6 billion per year). About 1 in 17 vehicles is a truck, fewer than the 1 in 12 across Florida.

Busier roads than 71% of counties in Florida

At 9,476 vehicles per day, the average road in Seminole tracks closely with the state average of 9,922 vehicles per day. Network-wide, Seminole accounts for about 1.9% of Florida's statewide total of vehicle-miles. Seminole carries more traffic than 71% of counties in Florida.

Journey times here (34.0 minutes on average) closely track the state level. Its average travel time of 34.0 minutes is longer than 61% of counties in Florida.

At 23.7%, the congestion ratio matches the state level closely.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Seminole County, Florida

Trafficvehicles per day31,198
Trucks7.5%
Average travel time43.2 min
Congestion ratio58.3%
Drivers’ average age44.5 yrs
Drivers’ average income$93,235

Highways carry a significant share of travel in Seminole County, Florida: 32% of all vehicle-miles. The average highway carries 31,198 vehicles per day, 243% more than the average non-highway road in the same area, which carries 9,107 vehicles per day.

Highways make up 11% of the monitored road miles (92 miles, 311 segments), so they carry more than their share: 3,214,143 vehicle-miles traveled per day (≈1.2 billion per year).

66% of counties in Florida move less traffic on their highways.

Lower highway truck share than 97% of counties in Florida

At 7.5%, highway truck share is 34% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

By truck concentration, highways here trail 97% of counties in Florida. Seminole's highway truck count is higher than 53% of counties in Florida, at roughly 2,324 trucks per day.

non-highway traffic icon

Non-highway Traffic in Seminole County, Florida

Trafficvehicles per day9,107
Trucks5.0%
Average travel time33.8 min
Congestion ratio23.1%
Drivers’ average age43.8 yrs
Drivers’ average income$96,403

A little more than half of the driving in Seminole County, Florida happens on local roads: 68% of all vehicle-miles. A typical local road sees 9,107 vehicles per day.

Spread over 708 miles and 18,338 segments, 89% of the road network, local roads carry a lighter load per mile: 6,747,057 vehicle-miles traveled per day (≈2.5 billion per year). Trucks make up 5.0% of non-highway traffic, about 1 in 20 vehicles.

Drivers from higher-income areas than 94% of counties in Florida

The concentration of trucks on non-highway roads is 32% lower than on highways.

The non-highway congestion ratio of 23.1% is in line with the state level.

Seminole's average driver income is higher than 94% of counties in Florida. Seminole's median driver age is lower than 91% of counties in Florida.

Time-of-Day & Seasonal Patterns

peak hours icon
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 74% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 29% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even February–April, the busiest stretch, runs only +2% versus the annual average.
Lowest month:
July is the quietest month, with volumes -6% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

In Seminole County, Florida, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+2% in high season).

Seminole County vs. Florida Traffic Comparison

Seminole County's biggest difference from the Florida average is its highway truck share, 34% below it. Its truck share is also 32% below.

MetricSeminole CountyFlorida averageDifference
Traffic9,4769,922-4.5%
Truck % (Total Traffic)5.8%8.6%-32.3%
Truck % (Highway)7.5%11.3%-34.2%
Avg. Travel Time34.0 min33.2 min+2.2%

How Seminole County compares

Seminole County has the lowest truck share of its nearby counties

Seminole County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the third 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.

Seminole County and the 4 nearest county-level areas by centroid distance, with the Florida average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Seminole County9,4765.8%9,961,20034.0 min23.7%
Orange County, Florida12,2876.7%38,686,99433.9 min27.6%
Volusia County, Florida8,6249.3%13,877,31433.7 min21.4%
Lake County, Florida7,7329.9%9,102,36034.8 min19.8%
Brevard County, Florida9,7719.0%14,759,22030.6 min23.7%
Florida average9,9228.6%N/A33.2 min23.8%

Seminole County ranked within Florida

Seminole County sits in the bottom quarter of the Florida field on truck share on highways, at #58 of 60.

Seminole County ranked among 67 county-level areas in Florida (1 = highest); measures without data in every county rank a smaller field, down to 60.
MeasureSeminole CountyFlorida rank
Traffic volume (AADT)9,476#20 of 67
Highway vehicle-miles per day3,214,143#21 of 60
Truck share on highways7.5%#58 of 60
Highway trucks per day2,324#29 of 60
Average travel time34.0 min#27 of 67
Average driver income$95,681#5 of 67
Average driver age43.9 yrs#61 of 67

The two ends of this table sit far apart: #5 of 67 on average driver income, against #58 of 60 on truck share on highways.

Busiest roads in Seminole County, Florida

On their busiest stretches, the three busiest roads in Seminole County carry 83,545 vehicles a day on average, 8.8 times the typical road in the county (9,476).

I 4 leads with 128,066 vehicles a day, 10,214 of them trucks (8.0%). That is 2.0 times the next road, FL 436 (64,785). It tops the truck ranking too, with the most trucks.

Trips using I 4 are long: a median of 45.4 minutes against 34.0 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 4Motorway · 128,066vehicles10,214trucks · 8.0%
Road class
Motorway
Congestion ratio
77.1%
Median trip time
45.4 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$89,982

Delays build on I 4: its congestion ratio of 77% over free-flow time is well above the county's 24%.

2FL 436Primary road · 64,785vehicles2,415trucks · 3.7%
Road class
Primary road
Congestion ratio
50.8%
Median trip time
34.6 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$89,243

FL 436 is a trunk route for the county, carrying 6.8 times the county average on its busiest stretch; trucks are 3.7% of it, below the county-wide 5.8%.

3Maitland BoulevardMotorway · 57,785vehicles3,376trucks · 5.8%
Road class
Motorway
Congestion ratio
68.1%
Median trip time
37.4 min
Drivers’ median age
44.4 yrs
Drivers’ average income
$89,687

Travel on Maitland Boulevard's busiest stretch runs 68% over free-flow time, against 24% across the county, so expect slower peak hours.

4Central Florida GreeneWayMotorway · 54,929vehicles3,026trucks · 5.5%
Road class
Motorway
Congestion ratio
52.5%
Median trip time
42.9 min
Drivers’ median age
42.8 yrs
Drivers’ average income
$97,910

Central Florida GreeneWay carries 5.8 times the county average at its busiest, 3,026 of them trucks (5.5%, below the county-wide 5.8%).

5W Mitchell Hammock RoadSecondary road · 50,000vehicles2,152trucks · 4.3%
Road class
Secondary road
Congestion ratio
63.6%
Median trip time
29.4 min
Drivers’ median age
40.6 yrs
Drivers’ average income
$106,907

W Mitchell Hammock Road carries 5.3 times the county average on its busiest stretch, where the median trip lasts 29.4 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 4Motorway · #1 by traffic128,066vehicles10,214trucks · 8.0%
2Maitland BoulevardMotorway · #3 by traffic57,785vehicles3,376trucks · 5.8%
3Seminole ExpresswayMotorway · 47,048vehicles3,252trucks · 6.9%
Road class
Motorway
Congestion ratio
46.4%
Median trip time
39.4 min
Drivers’ median age
43.2 yrs
Drivers’ average income
$99,664

Seminole Expressway peaks at 47,048 vehicles a day, 5.0 times the county average; trucks are 6.9% of it, above the county-wide 5.8%.

4Central Florida GreeneWayMotorway · #4 by traffic54,929vehicles3,026trucks · 5.5%
5FL 436Primary road · #2 by traffic64,785vehicles2,415trucks · 3.7%
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

SeminoleDepartment 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 Seminole County

The same traffic breakdown for the areas closest to Seminole County, Florida.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.