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Traffic heat map of Polk County, Florida: 1,993 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 4 and Bartow Road

Polk County, Florida Traffic Counts

How busy are the roads of Polk County, Florida? We measure 1,993 road miles, divided into 38,159 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, I 4, carries 98,901 vehicles a day, 11.7 times the average road. 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 Polk County, Florida

Traffic

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

vehicles per day8,456
Trucks

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

9.1%
Average travel time

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

35.1 min
Congestion ratio

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

21.7%
Drivers’ average age

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

45.5 yrs
Drivers’ average income

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

$70,333

The average monitored road in Polk County, Florida carries 8,456 vehicles per day. Across its 1,993 miles of monitored roads, that adds up to 19,301,756 vehicle-miles traveled per day (≈7.0 billion per year). Trucks are 9.1% of traffic, close to the 8.6% across Florida.

Longer trips than 74% of counties in Florida

Polk's average daily traffic volume is 15% lower than the state average - 8,456 vehicles per day against 9,922 - a critical factor for logistics and site planning. Across the whole network, that travel is about 3.7% of Florida's statewide total. 62% of counties in Florida see less traffic than Polk's 8,456 vehicles per day.

At 35.1 minutes, the average travel time is 6% higher than the state level. On travel time, Polk runs longer than 74% of counties in Florida.

Congestion is somewhat lower than the state level, at a ratio of 21.7% (9% lower).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Polk County, Florida

Trafficvehicles per day18,479
Trucks11.9%
Average travel time42.5 min
Congestion ratio34.4%
Drivers’ average age44.6 yrs
Drivers’ average income$71,277

Highways carry about half of all travel in Polk County, Florida, 46% of vehicle-miles. The average highway carries 18,479 vehicles per day, 150% more than the average non-highway road in the same area, which carries 7,398 vehicles per day.

With 21% of the road miles (424 miles in 3,642 segments), highways punch above their length, carrying 8,844,776 vehicle-miles traveled per day (≈3.2 billion per year).

90% of counties in Florida move less traffic on their highways.

A typical mix of freight and passenger traffic

At 11.9%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Florida: neither freight- nor commuter-dominated.

63% of counties in Florida see a higher highway truck share than Polk's 11.9%. By raw truck volume, Polk carries fewer highway trucks than 59% of counties in Florida.

non-highway traffic icon

Non-highway Traffic in Polk County, Florida

Trafficvehicles per day7,398
Trucks6.8%
Average travel time34.4 min
Congestion ratio20.4%
Drivers’ average age46.0 yrs
Drivers’ average income$69,833

Local roads carry about half of all travel in Polk County, Florida, 54% of vehicle-miles. A typical local road sees 7,398 vehicles per day.

Spread over 1,568 miles and 34,517 segments, 79% of the road network, local roads carry a lighter load per mile: 10,456,980 vehicle-miles traveled per day (≈3.8 billion per year). Trucks make up 6.8% of non-highway traffic, about 1 in 15 vehicles.

Younger drivers than 80% of counties in Florida

Non-highway roads carry a truck concentration that's 43% lower than the highway network.

Non-highway congestion (20.4%) runs slightly lower than the state level (10% lower).

Polk's average driver income is lower than 52% of counties in Florida. 80% of counties in Florida have an older driver population than Polk.

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 somewhat quieter: volumes run about 11% below weekday levels, the usual weekend dip.
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:
August is the quietest month, with volumes -4% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

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

Polk County vs. Florida Traffic Comparison

Polk County stays close to the Florida average; the largest gap is its average daily traffic per road, 15% below.

MetricPolk CountyFlorida averageDifference
Traffic8,4569,922-14.8%
Truck % (Total Traffic)9.1%8.6%+6.0%
Truck % (Highway)11.9%11.3%+4.8%
Avg. Travel Time35.1 min33.2 min+5.8%

How Polk County compares

Polk County against nearby counties

Polk 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 fourth busiest roads of the five.

Polk 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
Polk County8,4569.1%19,301,75635.1 min21.7%
Hardee County, Florida3,81714.7%976,46236.9 min10.9%
Hillsborough, Florida11,8007.1%37,217,57334.7 min26.6%
Osceola County, Florida12,2629.0%11,226,76233.6 min29.5%
Pasco County, Florida9,9718.8%12,427,66734.3 min25.2%
Florida average9,9228.6%N/A33.2 min23.8%

Polk County ranked within Florida

Highway travel volume places Polk County #7 of 60 in Florida - the top quarter of the state.

Polk County ranked among 67 county-level areas in Florida (1 = highest); measures without data in every county rank a smaller field, down to 60.
MeasurePolk CountyFlorida rank
Traffic volume (AADT)8,456#26 of 67
Highway vehicle-miles per day8,844,776#7 of 60
Truck share on highways11.9%#38 of 60
Highway trucks per day2,192#36 of 60
Average travel time35.1 min#18 of 67
Average driver income$70,333#35 of 67
Average driver age45.5 yrs#54 of 67

Polk County ranks #7 of 60 on highway travel volume but #54 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 Polk County, Florida

Traffic concentrates on a few corridors: the three busiest roads average 65,998 vehicles a day, against 8,456 on the average road in Polk County.

I 4 is the busiest road, at 98,901 vehicles a day, 14,816 of them trucks (15.0%). No other road comes close: Bartow Road, in second place, carries 50,121. It tops the truck ranking too, with the most trucks.

Trips using I 4 are long: a median of 57.0 minutes against 35.1 county-wide, the mark of a through route.

Freight stands out on I 4: trucks are 15.0% of the traffic there, against 9.1% county-wide.

Few trucks use US 98: 4.1% of its traffic, under half the county's 9.1%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 4Motorway · 98,901vehicles14,816trucks · 15.0%
Road class
Motorway
Congestion ratio
67.7%
Median trip time
57.0 min
Drivers’ median age
43.1 yrs
Drivers’ average income
$80,104

Travel on I 4's busiest stretch runs 68% over free-flow time, against 22% across the county, so expect slower peak hours.

2Bartow RoadPrimary road · 50,121vehicles3,031trucks · 6.0%
Road class
Primary road
Congestion ratio
47.5%
Median trip time
41.5 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$71,913

Bartow Road is one of the more congested roads here: trips take 48% longer than at free-flow speed, against 22% county-wide.

3US 98Primary road · 48,973vehicles1,988trucks · 4.1%
Road class
Primary road
Congestion ratio
40.6%
Median trip time
37.1 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$63,048

US 98 carries 5.8 times the county average on its busiest stretch, where the median trip lasts 37.1 minutes.

4Irlo Bronson Memorial HighwayTrunk road · 45,959vehicles3,125trucks · 6.8%
Road class
Trunk road
Congestion ratio
43.9%
Median trip time
32.2 min
Drivers’ median age
42.8 yrs
Drivers’ average income
$89,606

At 5.4 times the county average, Irlo Bronson Memorial Highway draws drivers from neighborhoods averaging $89,606 in household income.

5Broadway AvenuePrimary road · 45,387vehicles3,036trucks · 6.7%
Road class
Primary road
Median trip time
36.5 min
Drivers’ median age
46.4 yrs
Drivers’ average income
$73,304

A main artery: Broadway Avenue's busiest stretch carries 5.4 times the county average; trucks are 6.7% of it, below the county-wide 9.1%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 4Motorway · #1 by traffic98,901vehicles14,816trucks · 15.0%
2US 27Trunk road · 44,485vehicles3,950trucks · 8.9%
Road class
Trunk road
Congestion ratio
39.1%
Median trip time
38.5 min
Drivers’ median age
44.7 yrs
Drivers’ average income
$68,465

US 27 is a trunk route for the county, carrying 5.3 times the county average on its busiest stretch; trucks are 8.9% of it, in line with the county-wide 9.1%.

3US 92Primary road · 31,937vehicles3,637trucks · 11.4%
Road class
Primary road
Congestion ratio
35.8%
Median trip time
37.6 min
Drivers’ median age
46.5 yrs
Drivers’ average income
$60,242

US 92 carries 3.8 times the county average at its busiest, 3,637 of them trucks (11.4%, above the county-wide 9.1%).

4Irlo Bronson Memorial HighwayTrunk road · #4 by traffic45,959vehicles3,125trucks · 6.8%
5Broadway AvenuePrimary road · #5 by traffic45,387vehicles3,036trucks · 6.7%
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

PolkDepartment 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 Polk County

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

Need segment-level traffic data?

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