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Traffic heat map of Denver County, Colorado: 950 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Valley Highway and I 225

Denver County, Colorado Traffic Counts

Traffic analytics for Denver County, Colorado, calculated from real-world mobile and sensor networks on 36,273 road segments (950 road miles, about 138 ft each). It has the busiest roads of any county in Colorado, averaging 9,512 vehicles a day. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Denver County, Colorado

Traffic

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

vehicles per day9,512
Trucks

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

6.3%
Average travel time

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

34.5 min
Congestion ratio

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

19.7%
Drivers’ average age

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

40.5 yrs
Drivers’ average income

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

$106,571

The average monitored road in Denver County, Colorado carries 9,512 vehicles per day. Across its 950 miles of monitored roads, that adds up to 13,746,468 vehicle-miles traveled per day (≈5.0 billion per year). Trucks are a smaller part of the mix than across Colorado: 6.3% against 8.4%.

The busiest roads of any county in Colorado

Denver's average daily traffic volume is 41% higher than the state average - 9,512 vehicles per day against 6,752 - suggesting more traffic load per road - more exposure for roadside businesses, and more competition for road space. Across the whole network, that travel is about 11% of Colorado's statewide total. Denver stands out as having the highest traffic volume in Colorado - 9,512 vehicles per day.

Journey times here (34.5 minutes on average) closely track the state level. Its average travel time of 34.5 minutes is longer than 52% of counties in Colorado.

At 25% higher than the state level, the 19.7% congestion ratio signals more pronounced congestion - a factor for delivery windows and signal timing.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Denver County, Colorado

Trafficvehicles per day50,203
Trucks7.8%
Average travel time37.5 min
Congestion ratio69.0%
Drivers’ average age41.2 yrs
Drivers’ average income$109,807

Travel in Denver County, Colorado splits roughly evenly, with about half of it (54% of vehicle-miles) on highways. The average highway carries 50,203 vehicles per day, 495% more than the average non-highway road in the same area, which carries 8,437 vehicles per day.

Yet highways are only 15% of the road network, 143 miles in 933 segments, so each mile of them is 3.6 times as busy as the average road mile.

That is the most highway travel volume of any county in Colorado.

The most highway trucks of any county in Colorado

The concentration of trucks on highways (7.8%) is 30% lower than the state average for similar road classifications. Trucks are a small share of a very large highway flow, so Denver still moves heavy freight volumes alongside its passenger traffic.

94% of counties in Colorado see a higher highway truck share than Denver's 7.8%. Denver also moves the highest raw count of highway trucks in Colorado, at roughly 4,046 per day.

non-highway traffic icon

Non-highway Traffic in Denver County, Colorado

Trafficvehicles per day8,437
Trucks4.6%
Average travel time34.4 min
Congestion ratio18.4%
Drivers’ average age39.3 yrs
Drivers’ average income$103,761

Travel in Denver County, Colorado splits roughly evenly, with about half of it (46% of vehicle-miles) on local roads. The average non-highway road carries 8,437 vehicles per day.

Local roads make up 85% of the monitored road miles (807 miles in 35,340 segments) but carry less than their share of travel: 6,366,738 vehicle-miles traveled per day (≈2.3 billion per year). The truck share on non-highway roads is 4.6%.

Younger drivers than 98% of counties in Colorado

Non-highway roads carry a truck concentration that's 41% lower than the highway network.

The non-highway congestion ratio of 18.4% is 22% higher than the state level, suggesting slower local mobility than the state average.

Denver's average driver income is higher than 84% of counties in Colorado. Denver's median driver age is lower than 98% of counties in Colorado.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 7:00 AM to 12:00 PM and PM peak 3:00 PM–6:00 PM, with volumes reaching approximately 58% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 14% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +4% versus the annual average.
Lowest month:
January is the quietest month, with volumes -9% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Denver County, Colorado, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.

Denver County vs. Colorado Traffic Comparison

The average daily traffic per road sets Denver County apart: 41% above the Colorado average. Its highway truck share, by contrast, is 30% below.

MetricDenver CountyColorado averageDifference
Traffic9,5126,752+40.9%
Truck % (Total Traffic)6.3%8.4%-24.5%
Truck % (Highway)7.8%11.2%-30.5%
Avg. Travel Time34.5 min33.2 min+3.8%

How Denver County compares

Denver County moves more traffic than any nearby county

Against the 4 nearest areas, Denver County moves 2.6 times the total daily travel and carries 51.3% more traffic on a typical road; it has the busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Denver County and the 4 nearest county-level areas by centroid distance, with the Colorado average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Denver County9,5126.3%13,746,46834.5 min19.7%
Broomfield County, Colorado7,8147.6%1,737,62930.9 min18.4%
Jefferson County, Colorado8,2315.9%10,806,93633.4 min17.1%
Douglas County, Colorado6,6146.9%8,581,07030.9 min16.0%
Gilpin County, Colorado2,48913.3%186,68241.0 min10.3%
Colorado average6,7528.4%N/A33.2 min15.7%

Denver County ranked within Colorado

Denver County records the state's highest average daily traffic volume, highway travel volume and highway truck volume - 3 first places in one county.

Denver County ranked among 64 county-level areas in Colorado (1 = highest); measures without data in every county rank a smaller field, down to 54.
MeasureDenver CountyColorado rank
Traffic volume (AADT)9,512#1 of 64
Highway vehicle-miles per day7,379,730#1 of 54
Truck share on highways7.8%#51 of 54
Highway trucks per day3,926#1 of 54
Average travel time34.5 min#31 of 64
Average driver income$106,571#11 of 64
Average driver age40.5 yrs#63 of 64

Denver County ranks #1 of 54 on highway travel volume but #51 of 54 on truck share on highways. It carries some of the heaviest highway traffic in Colorado, but very little of it is freight - this is commuter and local car volume, not through-trucking.

Busiest roads in Denver County, Colorado

The three busiest roads in Denver County average 152,058 vehicles a day, 16.0 times the county average of 9,512 across all its monitored roads.

Valley Highway is the busiest road, at 199,331 vehicles a day, 11,684 of them trucks (5.9%). Tuskegee Airmen Memorial Highway carries the most trucks, 13,049 a day (11.6% of its traffic), although it ranks #3 for all traffic.

Trucks make up 12.5% of traffic on Peña Boulevard and 12.1% on Dwight D. Eisenhower Highway, against 6.3% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Valley HighwayMotorway · 199,331vehicles11,684trucks · 5.9%
Road class
Motorway
Congestion ratio
99.6%
Median trip time
37.9 min
Drivers’ median age
41.0 yrs
Drivers’ average income
$105,274

Valley Highway is one of the more congested roads here: trips take 100% longer than at free-flow speed, against 20% county-wide.

2I 225Motorway · 144,340vehicles11,644trucks · 8.1%
Road class
Motorway
Congestion ratio
93.3%
Median trip time
37.9 min
Drivers’ median age
40.9 yrs
Drivers’ average income
$99,322

I 225 is a trunk route for the county, carrying 15.2 times the county average on its busiest stretch; trucks are 8.1% of it, above the county-wide 6.3%.

3Tuskegee Airmen Memorial HighwayMotorway · 112,504vehicles13,049trucks · 11.6%
Road class
Motorway
Congestion ratio
67.9%
Median trip time
39.6 min
Drivers’ median age
40.4 yrs
Drivers’ average income
$104,874

A freight route: trucks are 11.6% of the traffic on Tuskegee Airmen Memorial Highway's busiest stretch, 1.8 times the county-wide 6.3%.

4Peña BoulevardMotorway · 93,350vehicles11,698trucks · 12.5%
Road class
Motorway
Congestion ratio
62.6%
Median trip time
42.4 min
Drivers’ median age
40.6 yrs
Drivers’ average income
$113,537

Peña Boulevard carries 9.8 times the county average at its busiest, 11,698 of them trucks (12.5%, above the county-wide 6.3%).

5I 70Motorway · 90,332vehicles6,308trucks · 7.0%
Road class
Motorway
Congestion ratio
71.2%
Median trip time
37.6 min
Drivers’ median age
41.3 yrs
Drivers’ average income
$105,494

I 70 carries 9.5 times the county average on its busiest stretch, where the median trip lasts 37.6 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Tuskegee Airmen Memorial HighwayMotorway · #3 by traffic112,504vehicles13,049trucks · 11.6%
2Peña BoulevardMotorway · #4 by traffic93,350vehicles11,698trucks · 12.5%
3Valley HighwayMotorway · #1 by traffic199,331vehicles11,684trucks · 5.9%
4I 225Motorway · #2 by traffic144,340vehicles11,644trucks · 8.1%
5Dwight D. Eisenhower HighwayMotorway · 76,608vehicles9,240trucks · 12.1%
Road class
Motorway
Congestion ratio
93.8%
Median trip time
39.9 min
Drivers’ median age
40.4 yrs
Drivers’ average income
$101,988

Delays build on Dwight D. Eisenhower Highway: its congestion ratio of 94% over free-flow time is well above the county's 20%.

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

DenverDepartment 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 Denver County

The same traffic breakdown for the areas closest to Denver County, Colorado.

Need segment-level traffic data?

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