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Traffic heat map of Crook County, Wyoming: 339 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 90 and Purple Heart Memorial Highway

Crook County, Wyoming Traffic Counts

Our Crook County, Wyoming traffic data covers 1,265 road segments over 339 road miles, with an average segment of just 1,417 ft. Its roads are the quietest of any county in Wyoming, at 1,113 vehicles a day on average. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
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 Crook County, Wyoming

Traffic

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

vehicles per day1,113
Trucks

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

12.6%
Average travel time

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

35.9 min
Congestion ratio

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

3.5%
Drivers’ average age

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

51.6 yrs
Drivers’ average income

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

$74,338

The average monitored road in Crook County, Wyoming carries 1,113 vehicles per day. Across its 339 miles of monitored roads, that adds up to 421,591 vehicle-miles traveled per day (≈154 million per year). Trucks are a smaller part of the mix than across Wyoming: 12.6% against 17.9%.

The quietest roads of any county in Wyoming

Crook's average daily traffic volume is 70% lower than the state average - 1,113 vehicles per day against 3,650 - suggesting less traffic load per road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Crook accounts for about 1.9% of Wyoming's statewide total of vehicle-miles. Crook stands out as having the lowest traffic volume in Wyoming - 1,113 vehicles per day.

Journey times here (35.9 minutes on average) closely track the state level. On travel time, Crook runs longer than 55% of counties in Wyoming.

The congestion ratio of 3.5% is 70% lower, pointing to smoother traffic flow than the state level - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Crook County, Wyoming

Trafficvehicles per day1,668
Trucks14.9%
Average travel time53.8 min
Drivers’ average age50.8 yrs
Drivers’ average income$76,215

Highways carry more than half of all travel in Crook County, Wyoming (63% of vehicle-miles). The average highway carries 1,668 vehicles per day, 75% more than the average non-highway road in the same area, which carries 954 vehicles per day.

Highways make up 42% of the monitored road miles (144 miles, 282 segments), so they carry more than their share: 267,221 vehicle-miles traveled per day (≈97.5 million per year).

Fewer highway trucks than 84% of counties in Wyoming

Highway truck concentration here runs 36% lower than the state average, at 14.9%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

By truck concentration, highways here trail 53% of counties in Wyoming. By raw truck volume, Crook carries fewer highway trucks than 84% of counties in Wyoming.

non-highway traffic icon

Non-highway Traffic in Crook County, Wyoming

Trafficvehicles per day954
Trucks8.6%
Average travel time30.7 min
Congestion ratio3.5%
Drivers’ average age53.5 yrs
Drivers’ average income$72,581

Local roads carry a significant share of travel in Crook County, Wyoming: 37% of all vehicle-miles. A typical local road sees 954 vehicles per day.

Spread over 196 miles and 983 segments, 58% of the road network, local roads carry a lighter load per mile: 154,370 vehicle-miles traveled per day (≈56.3 million per year). The truck share on non-highway roads is 8.6%.

Local congestion 70% below the Wyoming average

The concentration of trucks on non-highway roads is 42% lower than on highways.

At 70% lower than the state level, the non-highway congestion ratio of 3.5% signals easier movement on local roads.

Trip origins here have lower average income than 55% of counties in Wyoming. Crook's median driver age is higher than 68% of counties in Wyoming.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 2:00 PM–4:00 PM, with volumes reaching approximately 91% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (-4%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +62% versus the annual average.
Lowest month:
February is the quietest month, with volumes -51% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Crook County, Wyoming, the peak hour concentrates about 8% of the day's traffic, and there is a strong seasonal swing of +62% in high season.

Crook County vs. Wyoming Traffic Comparison

Crook County's biggest difference from the Wyoming average is its average daily traffic per road, 70% below it. Its highway truck share is also 36% below.

MetricCrook CountyWyoming averageDifference
Traffic1,1133,650-69.5%
Truck % (Total Traffic)12.6%17.9%-29.5%
Truck % (Highway)14.9%23.3%-36.0%
Avg. Travel Time35.9 min34.5 min+3.9%

How Crook County compares

Crook County has the quietest roads among its nearby counties

Compared with its 4 closest neighbours, Crook County carries 65.9% less traffic on a typical road; it has the quietest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Crook County and the 4 nearest county-level areas by centroid distance, with the Wyoming average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Crook County1,11312.6%421,59135.9 min3.5%
Lawrence County, South Dakota3,4259.1%848,59628.8 minN/A
Campbell County, Wyoming4,72011.8%1,290,99933.0 min12.6%
Butte County, South Dakota3,08611.1%275,97231.6 min3.4%
Weston County, Wyoming1,80810.5%173,66148.4 minN/A
Wyoming average3,65017.9%N/A34.5 min11.5%

Crook County ranked within Wyoming

Crook County records the lowest average daily traffic volume in Wyoming.

Crook County ranked among 23 county-level areas in Wyoming (1 = highest); measures without data in every county rank a smaller field, down to 20.
MeasureCrook CountyWyoming rank
Traffic volume (AADT)1,113#23 of 23
Highway vehicle-miles per day267,221#16 of 20
Truck share on highways14.9%#11 of 20
Highway trucks per day249#17 of 20
Average travel time35.9 min#11 of 23
Average driver income$74,338#13 of 23
Average driver age51.6 yrs#8 of 23

Crook County ranks #8 of 23 on average driver age but #23 of 23 on average daily traffic volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Crook County, Wyoming

Traffic concentrates on a few corridors: the three busiest roads average 3,637 vehicles a day, against 1,113 on the average road in Crook County.

I 90 is the busiest road, at 5,359 vehicles a day, 690 of them trucks (12.9%). That is 89% more than the next road, Purple Heart Memorial Highway (2,830). It tops the truck ranking too, with the most trucks.

Purple Heart Memorial Highway carries longer journeys than most roads here, with a median trip of 48.7 minutes against 35.9 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 90Motorway · 5,359vehicles690trucks · 12.9%
Road class
Motorway
Median trip time
45.7 min
Drivers’ median age
45.9 yrs
Drivers’ average income
$80,774

I 90 carries 4.8 times the county average on its busiest stretch, where the median trip lasts 45.7 minutes.

2Purple Heart Memorial HighwayMotorway · 2,830vehicles462trucks · 16.3%
Road class
Motorway
Median trip time
48.7 min
Drivers’ median age
52.8 yrs
Drivers’ average income
$75,189

At 2.5 times the county average, Purple Heart Memorial Highway draws drivers from neighborhoods averaging $75,189 in household income.

3Converse StreetPrimary road · 2,721vehicles204trucks · 7.5%
Road class
Primary road
Median trip time
33.0 min
Drivers’ median age
53.1 yrs
Drivers’ average income
$77,451

The busiest stretch of Converse Street carries 2.4 times the county average; trucks are 7.5% of it, below the county-wide 12.6%.

4Yellowstone AvenuePrimary road · 2,600vehicles183trucks · 7.0%
Road class
Primary road
Median trip time
26.0 min
Drivers’ median age
52.8 yrs
Drivers’ average income
$69,651

Yellowstone Avenue is a local road at heart: the median trip using it lasts 26.0 minutes, against 35.9 for the county.

5WY 24Primary road · 2,523vehicles207trucks · 8.2%
Road class
Primary road
Median trip time
41.1 min
Drivers’ median age
56.5 yrs
Drivers’ average income
$79,640

On its busiest stretch, WY 24 carries 2.3 times the county average; trucks are 8.2% of it, below the county-wide 12.6%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 90Motorway · #1 by traffic5,359vehicles690trucks · 12.9%
2Purple Heart Memorial HighwayMotorway · #2 by traffic2,830vehicles462trucks · 16.3%
3US 212Trunk road · 1,567vehicles236trucks · 15.1%
Road class
Trunk road
Median trip time
44.2 min
Drivers’ median age
53.2 yrs
Drivers’ average income
$77,932

US 212 carries 41% more than the county average on its busiest stretch, where the median trip lasts 44.2 minutes.

4WY 24Primary road · #5 by traffic2,523vehicles207trucks · 8.2%
5Converse StreetPrimary road · #3 by traffic2,721vehicles204trucks · 7.5%
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

CrookDepartment 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 Crook County

The same traffic breakdown for the areas closest to Crook County, Wyoming.

Need segment-level traffic data?

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