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Traffic heat map of Colorado: roads over 1,000 vehicles a day shaded from blue (light) to red (heavy traffic), busiest on Valley Highway and I 225

Colorado Traffic Counts

TrafficZoom tracks traffic on 21,304 road miles in Colorado, divided into 314,876 segments averaging 357 ft. Its busiest road, Valley Highway in Arapahoe County, carries 217,106 vehicles a day, 32.2 times the average road. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
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 Colorado

Traffic

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

vehicles per day6,752
Trucks

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

8.4%
Average travel time

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

33.2 min
Congestion ratio

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

15.7%
Drivers’ average age

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

43.1 yrs
Drivers’ average income

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

$104,692

Our data shows 6,752 vehicles per day on the average road in Colorado, and 127,026,550 vehicle-miles traveled per day (≈46.4 billion per year) across its 21,304 miles of monitored roads. Trucks are 8.4% of traffic, close to the 9.3% across the US.

Congestion 17% below the national average

At 6,752 vehicles per day, the average road in Colorado tracks closely with the national average of 6,986 vehicles per day. Network-wide, Colorado accounts for about 1.7% of the national total of vehicle-miles. By volume, Colorado's 6,752 vehicles per day outpaces 58% of states nationwide.

The average trip takes 33.2 minutes, on par with the national level. On travel time, Colorado runs shorter than 52% of states nationwide.

The congestion ratio of 15.7% is 17% lower, pointing to smoother traffic flow than the national level - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Colorado

Trafficvehicles per day14,126
Trucks11.2%
Average travel time37.6 min
Congestion ratio34.1%
Drivers’ average age44.3 yrs
Drivers’ average income$102,887

Highways carry about half of all travel in Colorado, 52% of vehicle-miles. The average highway carries 14,126 vehicles per day, 135% more than the average non-highway road in the same area, which carries 6,014 vehicles per day.

With 24% of the road miles (5,183 miles in 28,641 segments), highways punch above their length, carrying 65,630,166 vehicle-miles traveled per day (≈24.0 billion per year).

54% of states nationwide move less traffic on their highways.

Lower highway truck share than 72% of states nationwide

At 11.2%, highway truck share is 14% lower than the national average. The highway traffic mix is typical for the US: neither freight- nor commuter-dominated.

By truck concentration, highways here trail 72% of states nationwide. By raw truck volume, Colorado carries fewer highway trucks than 66% of states nationwide.

non-highway traffic icon

Non-highway Traffic in Colorado

Trafficvehicles per day6,014
Trucks5.3%
Average travel time32.9 min
Congestion ratio15.0%
Drivers’ average age42.6 yrs
Drivers’ average income$106,443

Local roads carry about half of all travel in Colorado, 48% of vehicle-miles. On the average non-highway road, that comes to 6,014 vehicles per day.

Spread over 16,120 miles and 286,235 segments, 76% of the road network, local roads carry a lighter load per mile: 61,396,383 vehicle-miles traveled per day (≈22.4 billion per year). About 1 in 19 vehicles on non-highway roads is a truck (5.3%).

Younger drivers than 90% of states nationwide

Non-highway roads carry a truck concentration that's 52% lower than the highway network.

Non-highway congestion (15.0%) runs 18% lower than the national average, pointing to smoother local traffic flow.

Colorado's average driver income is higher than 88% of states nationwide. 90% of states nationwide have an older driver population than 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 82% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 13% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +10% versus the annual average.
Lowest month:
January is the quietest month, with volumes -15% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Colorado, the peak hour concentrates about 8% of the day's traffic, and there is a noticeable seasonal swing of +10% in high season.

Colorado vs. United States Traffic Comparison

Colorado stays close to the United States average; the largest gap is its highway truck share, 14% below.

MetricColoradoUnited States averageDifference
Traffic6,7526,986-3.4%
Truck % (Total Traffic)8.4%9.3%-10.2%
Truck % (Highway)11.2%13.1%-13.9%
Avg. Travel Time33.2 min33.3 min-0.4%

How Colorado compares

Colorado moves more traffic than any nearby state

Set against the average of the 4 states nearest to it, Colorado moves 2.3 times the total daily travel and runs 5.2 percentage points less truck traffic; it has the second busiest roads of the five. The extra traffic here is local and light - trucks make up less of it than anywhere immediately around it.

Colorado and the 4 nearest states by centroid distance, with the United States average for scale.
StateAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Colorado6,7528.4%127,026,55033.2 min15.7%
Wyoming3,65017.9%21,843,30434.5 min11.5%
New Mexico4,56216.2%64,135,02234.0 min14.4%
Utah10,1988.9%87,040,46632.2 min21.2%
Nebraska3,59811.5%50,655,06233.0 min17.5%
United States average6,9869.3%N/A33.3 min18.9%

Busiest counties in Colorado

Together, those three counties carry 29.4% of all the vehicle-miles measured in the state.

Ranked by daily vehicle-miles, across the 64 counties in Colorado with a published traffic page. Vehicle-miles is total travel, so this ranks by traffic MOVED rather than by how busy a typical road is.
CountyDaily vehicle-milesAverage daily trafficTruck shareRoad miles
1. Denver County13,746,4689,5126.3%950
2. El Paso County12,741,3337,0546.2%1,494
3. Adams County10,849,6369,1658.0%1,031

Most truck-intensive counties in Colorado

Together, those five counties carry just 5.3% of the truck vehicle-miles driven in the state. Truck share says where trucks dominate the mix; it does not say where the freight is.

Ranked by truck share of all traffic, across the same 64 counties, shown with the traffic volume that share is measured against.
CountyTruck shareTruck share on highwaysAverage daily trafficDaily vehicle-miles
1. Baca County27.2%30.8%2,248286,962
2. Kit Carson County25.3%27.7%1,759944,991
3. Cheyenne County25.3%31.6%1,734257,036
4. Lincoln County23.8%27.1%1,947587,477
5. Kiowa County21.3%26.9%1,539202,646

Asking the same question of truck vehicle-miles gives a different answer - Weld County, Denver County, Adams County, El Paso County and Arapahoe County, together 40.1% of all truck travel in Colorado.

Busiest roads in Colorado

On their busiest stretches, the three busiest roads in Colorado carry 186,925 vehicles a day on average, 27.7 times the typical road in the state (6,752).

Valley Highway in Arapahoe County is the busiest road, at 217,106 vehicles a day, 12,520 of them trucks (5.8%). Tuskegee Airmen Memorial Highway in Denver County carries the most trucks on the list, 13,049 a day (11.6% of its traffic), although it ranks #7 for all traffic.

Trips using Dwight D. Eisenhower Highway in Weld County are long: a median of 47.9 minutes against 33.2 state-wide, the mark of a through route.

Freight stands out on Dwight D. Eisenhower Highway in Weld County: trucks are 14.1% of the traffic there, against 8.4% state-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Valley HighwayArapahoe County · Motorway · 217,106vehicles12,520trucks · 5.8%
Road class
Motorway
Congestion ratio
96.6%
Median trip time
37.8 min
Drivers’ median age
43.2 yrs
Drivers’ average income
$130,766

Valley Highway is a trunk route for the state, carrying 32.2 times the state average on its busiest stretch; trucks are 5.8% of it, below the state-wide 8.4%.

2Valley HighwayDenver County · Motorway · 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 carries 29.5 times the state average at its busiest, 11,684 of them trucks (5.9%, below the state-wide 8.4%).

3I 225Denver County · Motorway · 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 carries 21.4 times the state average on its busiest stretch, where the median trip lasts 37.9 minutes.

4I 225Adams County · Motorway · 141,978vehicles11,867trucks · 8.4%
Road class
Motorway
Congestion ratio
100.2%
Median trip time
38.1 min
Drivers’ median age
40.9 yrs
Drivers’ average income
$100,597

I 225 is one of the more congested roads here: trips take 100% longer than at free-flow speed, against 16% state-wide.

5I 225Arapahoe County · Motorway · 125,925vehicles8,873trucks · 7.0%
Road class
Motorway
Congestion ratio
85.2%
Median trip time
37.9 min
Drivers’ median age
41.5 yrs
Drivers’ average income
$104,369

At 18.6 times the state average, I 225 draws drivers from neighborhoods averaging $104,369 in household income.

6Dwight D. Eisenhower HighwayBroomfield County · Motorway · 116,035vehicles12,779trucks · 11.0%
Road class
Motorway
Congestion ratio
83.5%
Median trip time
44.1 min
Drivers’ median age
42.3 yrs
Drivers’ average income
$123,363

Dwight D. Eisenhower Highway carries through traffic: the median trip using it lasts 44.1 minutes, against 33.2 for the state.

7Tuskegee Airmen Memorial HighwayDenver County · Motorway · 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 main artery: Tuskegee Airmen Memorial Highway's busiest stretch carries 16.7 times the state average; trucks are 11.6% of it, above the state-wide 8.4%.

8Valley HighwayAdams County · Motorway · 110,766vehicles8,681trucks · 7.8%
Road class
Motorway
Congestion ratio
70.2%
Median trip time
38.5 min
Drivers’ median age
41.0 yrs
Drivers’ average income
$111,555

Valley Highway is a trunk route for the state, carrying 16.4 times the state average on its busiest stretch; trucks are 7.8% of it, below the state-wide 8.4%.

9I 25El Paso County · Motorway · 105,197vehicles9,041trucks · 8.6%
Road class
Motorway
Congestion ratio
66.3%
Median trip time
36.1 min
Drivers’ median age
42.0 yrs
Drivers’ average income
$86,649

I 25 carries 15.6 times the state average at its busiest, 9,041 of them trucks (8.6%, in line with the state-wide 8.4%).

10Peña BoulevardDenver County · Motorway · 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 13.8 times the state average on its busiest stretch, where the median trip lasts 42.4 minutes.

Ranked by trucks per day

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1Tuskegee Airmen Memorial HighwayDenver County · Motorway · #7 by traffic112,504vehicles13,049trucks · 11.6%
2Dwight D. Eisenhower HighwayBroomfield County · Motorway · #6 by traffic116,035vehicles12,779trucks · 11.0%
3Valley HighwayArapahoe County · Motorway · #1 by traffic217,106vehicles12,520trucks · 5.8%
4Dwight D. Eisenhower HighwayWeld County · Motorway · 85,003vehicles11,962trucks · 14.1%
Road class
Motorway
Congestion ratio
67.5%
Median trip time
47.9 min
Drivers’ median age
42.5 yrs
Drivers’ average income
$115,316

At 12.6 times the state average, Dwight D. Eisenhower Highway draws drivers from neighborhoods averaging $115,316 in household income.

5I 225Adams County · Motorway · #4 by traffic141,978vehicles11,867trucks · 8.4%
6Peña BoulevardDenver County · Motorway · #10 by traffic93,350vehicles11,698trucks · 12.5%
7Valley HighwayDenver County · Motorway · #2 by traffic199,331vehicles11,684trucks · 5.9%
8I 225Denver County · Motorway · #3 by traffic144,340vehicles11,644trucks · 8.1%
9Valley HighwayBroomfield County · Motorway · 91,588vehicles11,139trucks · 12.2%
Road class
Motorway
Congestion ratio
63.8%
Median trip time
43.5 min
Drivers’ median age
42.1 yrs
Drivers’ average income
$124,939

Drivers on Valley Highway are on long journeys, a median 43.5 minutes against 33.2 state-wide: a through route more than a local street.

10Dwight D. Eisenhower HighwayAdams County · Motorway · 88,667vehicles10,242trucks · 11.6%
Road class
Motorway
Congestion ratio
104.5%
Median trip time
38.6 min
Drivers’ median age
40.3 yrs
Drivers’ average income
$100,823

Delays build on Dwight D. Eisenhower Highway: its congestion ratio of 104% over free-flow time is well above the state's 16%.

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

ColoradoDepartment 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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States near Colorado

The same traffic breakdown for the states closest to Colorado.

Need segment-level traffic data?

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

Counties in Colorado

Traffic counts, truck share, congestion and driver demographics for each of the 64 counties TrafficZoom measures in Colorado.