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Traffic heat map of Alamosa County, Colorado: 200 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Broadway Avenue and Main Street

Alamosa County, Colorado Traffic Counts

Its busiest road, Broadway Avenue, carries 14,844 vehicles a day, 3.9 times the average road. This page breaks down traffic in Alamosa County, Colorado across 200 miles of monitored roads split into 1,752 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
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 Alamosa County, Colorado

Traffic

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

vehicles per day3,761
Trucks

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

8.1%
Average travel time

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

44.8 min
Congestion ratio

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

10.3%
Drivers’ average age

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

43.0 yrs
Drivers’ average income

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

$57,308

Our data shows 3,761 vehicles per day on the average road in Alamosa County, Colorado, and 435,909 vehicle-miles traveled per day (≈159 million per year) across its 200 miles of monitored roads. About 1 in 12 vehicles is a truck, in line with Colorado (8.4%).

Longer trips than 87% of counties in Colorado

Alamosa's average daily traffic volume is 44% lower than the state average - 3,761 vehicles per day against 6,752 - suggesting less traffic load per road - lighter roads for freight, but less passing trade for roadside retail. Across the whole network, that travel is about 0.3% of Colorado's statewide total. Alamosa carries more traffic than 62% of counties in Colorado.

At 44.8 minutes, the average travel time is 35% higher than the state level. 87% of counties in Colorado have a shorter average travel time than Alamosa's 44.8 minutes.

At 35% lower than the state level, the 10.3% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Alamosa County, Colorado

Trafficvehicles per day8,523
Trucks8.9%
Average travel time36.8 min
Congestion ratio18.3%
Drivers’ average age43.9 yrs
Drivers’ average income$57,999

Most travel in Alamosa County, Colorado happens on highways, 74% of all vehicle-miles. The average highway carries 8,523 vehicles per day, 372% more than the average non-highway road in the same area, which carries 1,805 vehicles per day.

With 28% of the road miles (55 miles in 510 segments), highways punch above their length, carrying 320,499 vehicle-miles traveled per day (≈117 million per year).

Lower highway truck share than 72% of counties in Colorado

Highway truck concentration here runs 21% lower than the state average, at 8.9%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Alamosa's highway truck share (8.9%) is lower than 72% of counties in Colorado. By raw truck volume, Alamosa carries fewer highway trucks than 72% of counties in Colorado.

non-highway traffic icon

Non-highway Traffic in Alamosa County, Colorado

Trafficvehicles per day1,805
Trucks5.9%
Average travel time48.2 min
Congestion ratio7.0%
Drivers’ average age38.9 yrs
Drivers’ average income$55,702

Local roads carry a smaller share of travel in Alamosa County, Colorado, 26% of vehicle-miles; most driving happens on highways. A typical local road sees 1,805 vehicles per day.

Spread over 144 miles and 1,242 segments, 72% of the road network, local roads carry a lighter load per mile: 115,410 vehicle-miles traveled per day (≈42.1 million per year). About 1 in 17 vehicles on non-highway roads is a truck (5.9%).

Drivers from lower-income areas than 87% of counties in Colorado

Non-highway roads carry a truck concentration that's 34% lower than the highway network.

The non-highway congestion ratio of 7.0% is 54% lower than the state level, suggesting more efficient local mobility than the state average.

Alamosa's average driver income is lower than 87% of counties in Colorado. The driver population here skews younger than 87% 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 71% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 24% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +9% versus the annual average.
Lowest month:
January is the quietest month, with volumes -12% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Alamosa County, Colorado, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +9% in high season.

Alamosa County vs. Colorado Traffic Comparison

Alamosa County's biggest difference from the Colorado average is its average daily traffic per road, 44% below it. Its average travel time, by contrast, is 35% above.

MetricAlamosa CountyColorado averageDifference
Traffic3,7616,752-44.3%
Truck % (Total Traffic)8.1%8.4%-3.1%
Truck % (Highway)8.9%11.2%-20.5%
Avg. Travel Time44.8 min33.2 min+35.1%

How Alamosa County compares

Alamosa County has the busiest roads among its nearby counties

Against the 4 nearest areas, Alamosa County carries 74.6% more traffic on a typical road and is 39.0% more congested; it has the busiest roads of the five. It is where traffic concentrates in this corner of the map - the local bottleneck, with more vehicles per road AND less room to absorb them.

Alamosa 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
Alamosa County3,7618.1%435,90944.8 min10.3%
Costilla County, Colorado2,48011.8%252,00749.0 min7.7%
Conejos County, Colorado2,2768.7%160,07525.4 min7.6%
Rio Grande County, Colorado2,7348.0%412,44237.4 min8.7%
Saguache County, Colorado1,12410.6%256,62251.9 min5.5%
Colorado average6,7528.4%N/A33.2 min15.7%

Alamosa County ranked within Colorado

Average travel time places Alamosa County #9 of 64 in Colorado - the top quarter of the state.

Alamosa County ranked among 64 county-level areas in Colorado (1 = highest); measures without data in every county rank a smaller field, down to 54.
MeasureAlamosa CountyColorado rank
Traffic volume (AADT)3,761#25 of 64
Highway vehicle-miles per day320,499#34 of 54
Truck share on highways8.9%#39 of 54
Highway trucks per day762#39 of 54
Average travel time44.8 min#9 of 64
Average driver income$57,308#56 of 64
Average driver age43.0 yrs#55 of 64

Alamosa County ranks #9 of 64 on average travel time but #56 of 64 on average driver income - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Alamosa County, Colorado

On their busiest stretches, the three busiest roads in Alamosa County carry 14,049 vehicles a day on average, 3.7 times the typical road in the county (3,761).

Broadway Avenue leads with 14,844 vehicles a day, 917 of them trucks (6.2%). It also carries the most trucks.

Trips on US 160 are short, a median of 30.9 minutes against 44.8 county-wide, so it serves mostly local traffic.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Broadway AvenueTrunk road · 14,844vehicles917trucks · 6.2%
Road class
Trunk road
Congestion ratio
40.8%
Median trip time
35.3 min
Drivers’ median age
43.3 yrs
Drivers’ average income
$59,591

Delays build on Broadway Avenue: its congestion ratio of 41% over free-flow time is well above the county's 10%.

2Main StreetTrunk road · 14,230vehicles783trucks · 5.5%
Road class
Trunk road
Congestion ratio
22.8%
Median trip time
35.7 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$56,463

At 3.8 times the county average, Main Street draws drivers from neighborhoods averaging $56,463 in household income.

3Denver AvenueTrunk road · 13,074vehicles824trucks · 6.3%
Road class
Trunk road
Congestion ratio
37.4%
Median trip time
39.6 min
Drivers’ median age
42.9 yrs
Drivers’ average income
$59,279

Travel on Denver Avenue's busiest stretch runs 37% over free-flow time, against 10% across the county, so expect slower peak hours.

4Sixth StreetTrunk road · 10,437vehicles628trucks · 6.0%
Road class
Trunk road
Congestion ratio
27.9%
Median trip time
43.3 min
Drivers’ median age
44.7 yrs
Drivers’ average income
$56,057

The busiest stretch of Sixth Street carries 2.8 times the county average; trucks are 6.0% of it, below the county-wide 8.1%.

5West AvenueTrunk road · 10,155vehicles634trucks · 6.2%
Road class
Trunk road
Congestion ratio
24.4%
Median trip time
32.4 min
Drivers’ median age
41.9 yrs
Drivers’ average income
$50,731

Trips on West Avenue are short, a median 32.4 minutes against 44.8 county-wide, so it mostly serves local errands and commutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Broadway AvenueTrunk road · #1 by traffic14,844vehicles917trucks · 6.2%
2Denver AvenueTrunk road · #3 by traffic13,074vehicles824trucks · 6.3%
3Main StreetTrunk road · #2 by traffic14,230vehicles783trucks · 5.5%
4US 160Trunk road · 8,099vehicles692trucks · 8.6%
Road class
Trunk road
Congestion ratio
15.8%
Median trip time
30.9 min
Drivers’ median age
42.7 yrs
Drivers’ average income
$60,300

On its busiest stretch, US 160 carries 2.2 times the county average; trucks are 8.6% of it, above the county-wide 8.1%.

5West AvenueTrunk road · #5 by traffic10,155vehicles634trucks · 6.2%
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

AlamosaDepartment 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 Alamosa County

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

Need segment-level traffic data?

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