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Traffic heat map of Hillsborough, Florida: 2,260 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 275 and I 4

Hillsborough, Florida Traffic Counts

How busy are the roads of Hillsborough, Florida? We measure 2,260 road miles, divided into 59,432 segments, with multi-sourced, cross-verified mobile and sensor data. It is one of the top 5 counties in Florida for highway travel volume. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 Hillsborough, Florida

Traffic

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

vehicles per day11,800
Trucks

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

7.1%
Average travel time

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

34.7 min
Congestion ratio

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

26.6%
Drivers’ average age

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

43.8 yrs
Drivers’ average income

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

$91,071

A typical monitored road in Hillsborough, Florida sees 11,800 vehicles per day, while its 2,260 miles of monitored roads together handle 37,217,573 vehicle-miles traveled per day (≈13.6 billion per year). About 1 in 14 vehicles is a truck, fewer than the 1 in 12 across Florida.

Busier roads than 91% of counties in Florida

At 11,800 vehicles per day, the average monitored road in Hillsborough carries 19% more traffic than the state average of 9,922, suggesting more demand on each road - a factor worth weighing in site selection and logistics planning. Network-wide, Hillsborough accounts for about 7.1% of Florida's statewide total of vehicle-miles. By volume, Hillsborough's 11,800 vehicles per day outpaces 91% of counties in Florida.

Journey times here (34.7 minutes on average) closely track the state level. 67% of counties in Florida have a shorter average travel time than Hillsborough's 34.7 minutes.

The congestion ratio of 26.6% runs slightly higher than the state level (12% higher) - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Hillsborough, Florida

Trafficvehicles per day41,948
Trucks8.3%
Average travel time42.2 min
Congestion ratio55.2%
Drivers’ average age44.3 yrs
Drivers’ average income$89,979

A significant share of driving in Hillsborough, Florida, 43% of vehicle-miles, happens on highways. The average highway carries 41,948 vehicles per day, 288% more than the average non-highway road in the same area, which carries 10,809 vehicles per day.

With 15% of the road miles (339 miles in 1,891 segments), highways punch above their length, carrying 16,067,310 vehicle-miles traveled per day (≈5.9 billion per year).

That puts Hillsborough among the top 5 counties in Florida for highway travel volume.

Lower highway truck share than 90% of counties in Florida

The concentration of trucks on highways (8.3%) is 27% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Hillsborough's highway truck share (8.3%) is lower than 90% of counties in Florida. Hillsborough's highway truck count is higher than 85% of counties in Florida, at roughly 3,473 trucks per day.

non-highway traffic icon

Non-highway Traffic in Hillsborough, Florida

Trafficvehicles per day10,809
Trucks6.2%
Average travel time34.5 min
Congestion ratio25.6%
Drivers’ average age43.4 yrs
Drivers’ average income$91,645

Local roads carry more than half of all travel in Hillsborough, Florida (57% of vehicle-miles). On the average non-highway road, that comes to 10,809 vehicles per day.

Local roads make up 85% of the monitored road miles (1,921 miles in 57,541 segments) but carry less than their share of travel: 21,150,263 vehicle-miles traveled per day (≈7.7 billion per year). Trucks make up 6.2% of non-highway traffic, about 1 in 16 vehicles.

Younger drivers than 94% of counties in Florida

Compared to highways, non-highway routes see 25% fewer trucks by share.

Non-highway congestion (25.6%) runs slightly higher than the state level (13% higher).

Hillsborough's average driver income is higher than 88% of counties in Florida. 94% of counties in Florida have an older driver population than Hillsborough.

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 64% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 23% 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 March–May, the busiest stretch, runs only +3% versus the annual average.
Lowest month:
August is the quietest month, with volumes -5% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

In Hillsborough, Florida, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+3% in high season).

Hillsborough vs. Florida Traffic Comparison

Hillsborough's biggest difference from the Florida average is its highway truck share, 27% below it. Its average daily traffic per road, by contrast, is 19% above.

MetricHillsboroughFlorida averageDifference
Traffic11,8009,922+18.9%
Truck % (Total Traffic)7.1%8.6%-17.7%
Truck % (Highway)8.3%11.3%-26.9%
Avg. Travel Time34.7 min33.2 min+4.5%

How Hillsborough compares

Hillsborough moves more traffic than any nearby county

Compared with its 4 closest neighbours, Hillsborough moves 2.5 times the total daily travel; it has the busiest roads of the five.

Hillsborough 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
Hillsborough11,8007.1%37,217,57334.7 min26.6%
Pinellas County, Florida11,4326.9%18,263,40134.0 min24.7%
Pasco County, Florida9,9718.8%12,427,66734.3 min25.2%
Manatee County, Florida10,9627.8%9,354,34435.1 min28.0%
Polk County, Florida8,4569.1%19,301,75635.1 min21.7%
Florida average9,9228.6%N/A33.2 min23.8%

Hillsborough ranked within Florida

Hillsborough sits in the top quarter of the Florida field on highway travel volume, at #4 of 60.

Hillsborough ranked among 67 county-level areas in Florida (1 = highest); measures without data in every county rank a smaller field, down to 60.
MeasureHillsboroughFlorida rank
Traffic volume (AADT)11,800#7 of 67
Highway vehicle-miles per day16,067,310#4 of 60
Truck share on highways8.3%#54 of 60
Highway trucks per day3,473#10 of 60
Average travel time34.7 min#23 of 67
Average driver income$91,071#9 of 67
Average driver age43.8 yrs#63 of 67

Hillsborough ranks #4 of 60 on highway travel volume but #63 of 67 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Hillsborough, Florida

On their busiest stretches, the three busiest roads in Hillsborough carry 136,154 vehicles a day on average, 11.5 times the typical road in the county (11,800).

I 275 leads with 145,408 vehicles a day, 9,626 of them trucks (6.6%). I 4 carries the most trucks, 13,607 a day (9.9% of its traffic), although it ranks #2 for all traffic.

Trucks make up 17.0% of traffic on 20th Street, against 7.1% across all roads in the county.

Trips using I 4 are long: a median of 48.8 minutes against 34.7 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 275Motorway · 145,408vehicles9,626trucks · 6.6%
Road class
Motorway
Congestion ratio
107.3%
Median trip time
42.7 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$88,628

I 275 is one of the more congested roads here: trips take 107% longer than at free-flow speed, against 27% county-wide.

2I 4Motorway · 137,930vehicles13,607trucks · 9.9%
Road class
Motorway
Congestion ratio
95.6%
Median trip time
48.8 min
Drivers’ median age
43.8 yrs
Drivers’ average income
$79,376

Delays build on I 4: its congestion ratio of 96% over free-flow time is well above the county's 27%.

3I 75Motorway · 125,123vehicles11,532trucks · 9.2%
Road class
Motorway
Congestion ratio
77.9%
Median trip time
44.1 min
Drivers’ median age
44.4 yrs
Drivers’ average income
$93,905

I 75 is a trunk route for the county, carrying 10.6 times the county average on its busiest stretch; trucks are 9.2% of it, above the county-wide 7.1%.

4Memorial HighwayMotorway · 109,120vehicles6,485trucks · 5.9%
Road class
Motorway
Congestion ratio
91.2%
Median trip time
39.2 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$95,453

Memorial Highway carries 9.2 times the county average at its busiest, 6,485 of them trucks (5.9%, below the county-wide 7.1%).

5FL 60Motorway · 75,393vehicles4,809trucks · 6.4%
Road class
Motorway
Median trip time
37.4 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$81,341

FL 60 carries 6.4 times the county average on its busiest stretch, where the median trip lasts 37.4 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 4Motorway · #2 by traffic137,930vehicles13,607trucks · 9.9%
2I 75Motorway · #3 by traffic125,123vehicles11,532trucks · 9.2%
3I 275Motorway · #1 by traffic145,408vehicles9,626trucks · 6.6%
4Memorial HighwayMotorway · #4 by traffic109,120vehicles6,485trucks · 5.9%
520th StreetPrimary road · 35,679vehicles6,050trucks · 17.0%
Road class
Primary road
Congestion ratio
35.8%
Median trip time
34.3 min
Drivers’ median age
42.1 yrs
Drivers’ average income
$81,178

20th Street peaks at 35,679 vehicles a day, 3.0 times the county average; trucks are 17.0% of it, above the county-wide 7.1%.

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

HillsboroughDepartment 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 Hillsborough

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

Need segment-level traffic data?

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