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Traffic heat map of Williams County, North Dakota: 632 miles of roads shaded from blue (light) to red (heavy traffic), busiest on 2nd Avenue and Dakota Parkway

Williams County, North Dakota Traffic Counts

TrafficZoom tracks traffic on 632 road miles in Williams County, North Dakota, divided into 4,584 segments averaging 728 ft. Its busiest road, 2nd Avenue, carries 18,614 vehicles a day, 6.8 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 Volume & Performance in Williams County, North Dakota

Traffic

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

vehicles per day2,719
Trucks

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

10.7%
Average travel time

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

41.2 min
Congestion ratio

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

9.2%
Drivers’ average age

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

40.0 yrs
Drivers’ average income

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

$88,059

The average monitored road in Williams County, North Dakota carries 2,719 vehicles per day. Across its 632 miles of monitored roads, that adds up to 985,414 vehicle-miles traveled per day (≈360 million per year). About 1 in 9 vehicles is a truck, in line with North Dakota (11.1%).

Busier roads than 90% of counties in North Dakota

At 2,719 vehicles per day, the average monitored road in Williams carries 25% more traffic than the state average of 2,174, suggesting more demand on each road - a busier backdrop for retail sites, at the cost of slower access. Across the whole network, that travel is about 5.6% of North Dakota's statewide total. 90% of counties in North Dakota see less traffic than Williams's 2,719 vehicles per day.

At 41.2 minutes, the average travel time is 11% higher than the state level. Its average travel time of 41.2 minutes is longer than 56% of counties in North Dakota.

Congestion is somewhat lower than the state level, at a ratio of 9.2% (13% lower) - relevant for traffic control and delivery planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Williams County, North Dakota

Trafficvehicles per day3,224
Trucks12.7%
Average travel time42.5 min
Congestion ratio8.5%
Drivers’ average age40.2 yrs
Drivers’ average income$86,305

Highways carry about half of all travel in Williams County, North Dakota, 47% of vehicle-miles. The average highway carries 3,224 vehicles per day, 23% more than the average non-highway road in the same area, which carries 2,631 vehicles per day.

With 28% of the road miles (175 miles in 681 segments), highways punch above their length, carrying 464,328 vehicle-miles traveled per day (≈169 million per year).

By highway travel volume, Williams outranks 85% of counties in North Dakota.

Lower highway truck share than 79% of counties in North Dakota

Highway truck concentration here runs 13% lower than the state average, at 12.7%. The highway traffic mix is typical for North Dakota: neither freight- nor commuter-dominated.

By truck concentration, highways here trail 79% of counties in North Dakota. 68% of counties in North Dakota see fewer highway trucks per day than Williams's roughly 408.

non-highway traffic icon

Non-highway Traffic in Williams County, North Dakota

Trafficvehicles per day2,631
Trucks9.0%
Average travel time41.0 min
Congestion ratio9.4%
Drivers’ average age39.9 yrs
Drivers’ average income$89,818

Local roads carry about half of all travel in Williams County, North Dakota, 53% of vehicle-miles. On the average non-highway road, that comes to 2,631 vehicles per day.

Local roads make up 72% of the monitored road miles (457 miles in 3,903 segments) but carry less than their share of travel: 521,085 vehicle-miles traveled per day (≈190 million per year). Trucks make up 9.0% of non-highway traffic, about 1 in 11 vehicles.

Younger drivers than 94% of counties in North Dakota

Non-highway roads carry a truck concentration that's 29% lower than the highway network.

Non-highway congestion (9.4%) runs slightly lower than the state level (14% lower).

79% of counties in North Dakota see lower average driver income among trip origins than Williams. Williams's median driver age is lower than 94% of counties in North Dakota.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 55% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 29% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +13% versus the annual average.
Lowest month:
March is the quietest month, with volumes -17% versus the annual average.

Data Finding: Hourly & Seasonal Patterns

In Williams County, North Dakota, traffic is spread evenly through the day, with the busiest hour carrying only about 6%, and there is a strong seasonal swing of +13% in high season.

Williams County vs. North Dakota Traffic Comparison

Of the four measures, average daily traffic per road differs most: Williams County runs 25% above the North Dakota average.

MetricWilliams CountyNorth Dakota averageDifference
Traffic2,7192,174+25.1%
Truck % (Total Traffic)10.7%11.1%-3.2%
Truck % (Highway)12.7%14.5%-12.7%
Avg. Travel Time41.2 min37.0 min+11.2%

How Williams County compares

Williams County has the busiest roads among its nearby counties

Set against the average of the 4 areas nearest to it, Williams County carries 125.0% more traffic on a typical road and is 75.9% 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.

Williams County and the 4 nearest county-level areas by centroid distance, with the North Dakota average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Williams County2,71910.7%985,41441.2 min9.2%
Divide County, North Dakota53311.6%64,66233.5 min3.2%
McKenzie County, North Dakota1,88617.7%901,12446.7 min7.3%
Mountrail County, North Dakota1,82417.5%535,42750.3 min7.6%
Burke County, North Dakota59215.8%85,91442.3 min2.9%
North Dakota average2,17411.1%N/A37.0 min10.6%

Williams County ranked within North Dakota

Williams County sits in the bottom quarter of the North Dakota field on average driver age, at #50 of 53.

Williams County ranked among 53 county-level areas in North Dakota (1 = highest); measures without data in every county rank a smaller field, down to 35.
MeasureWilliams CountyNorth Dakota rank
Traffic volume (AADT)2,719#6 of 53
Highway vehicle-miles per day464,328#6 of 35
Truck share on highways12.7%#28 of 35
Highway trucks per day408#12 of 35
Average travel time41.2 min#24 of 53
Average driver income$88,059#12 of 53
Average driver age40.0 yrs#50 of 53

The two ends of this table sit far apart: #6 of 53 on average daily traffic volume, against #50 of 53 on average driver age.

Busiest roads in Williams County, North Dakota

On their busiest stretches, the three busiest roads in Williams County carry 13,239 vehicles a day on average, 4.9 times the typical road in the county (2,719).

2nd Avenue leads with 18,614 vehicles a day, 817 of them trucks (4.4%). Dakota Parkway carries the most trucks, 1,097 a day (8.3% of its traffic), although it ranks #2 for all traffic.

Railroad Avenue carries longer journeys than most roads here, with a median trip of 58.0 minutes against 41.2 county-wide.

Traffic and freight follow different roads here: only 2 of the five busiest roads also make the top 5 for trucks.

2nd Avenue is busy with cars rather than freight: only 4.4% of its traffic is trucks, against 10.7% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
12nd AvenuePrimary road · 18,614vehicles817trucks · 4.4%
Road class
Primary road
Congestion ratio
44.0%
Median trip time
40.0 min
Drivers’ median age
40.2 yrs
Drivers’ average income
$94,602

Travel on 2nd Avenue's busiest stretch runs 44% over free-flow time, against 9% across the county, so expect slower peak hours.

2Dakota ParkwayTrunk road · 13,212vehicles1,097trucks · 8.3%
Road class
Trunk road
Congestion ratio
17.3%
Median trip time
41.3 min
Drivers’ median age
40.5 yrs
Drivers’ average income
$89,866

Dakota Parkway carries 4.9 times the county average at its busiest, 1,097 of them trucks (8.3%, below the county-wide 10.7%).

3Main StreetPrimary road · 7,891vehicles386trucks · 4.9%
Road class
Primary road
Congestion ratio
19.1%
Median trip time
42.6 min
Drivers’ median age
39.5 yrs
Drivers’ average income
$98,808

Main Street carries 2.9 times the county average on its busiest stretch, where the median trip lasts 42.6 minutes.

42nd StreetPrimary road · 7,881vehicles445trucks · 5.7%
Road class
Primary road
Congestion ratio
20.1%
Median trip time
40.0 min
Drivers’ median age
40.4 yrs
Drivers’ average income
$98,228

2nd Street is one of the more congested roads here: trips take 20% longer than at free-flow speed, against 9% county-wide.

526th StreetTertiary road · 7,664vehicles316trucks · 4.1%
Road class
Tertiary road
Congestion ratio
18.4%
Median trip time
41.4 min
Drivers’ median age
40.3 yrs
Drivers’ average income
$76,832

At 2.8 times the county average, 26th Street draws drivers from neighborhoods averaging $76,832 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Dakota ParkwayTrunk road · #2 by traffic13,212vehicles1,097trucks · 8.3%
22nd AvenuePrimary road · #1 by traffic18,614vehicles817trucks · 4.4%
3US 2Trunk road · 5,544vehicles768trucks · 13.9%
Road class
Trunk road
Congestion ratio
6.6%
Median trip time
42.9 min
Drivers’ median age
40.0 yrs
Drivers’ average income
$87,085

The busiest stretch of US 2 carries 2.0 times the county average; trucks are 13.9% of it, above the county-wide 10.7%.

4US 85Trunk road · 3,585vehicles558trucks · 15.6%
Road class
Trunk road
Congestion ratio
6.2%
Median trip time
42.3 min
Drivers’ median age
39.3 yrs
Drivers’ average income
$86,415

US 85 carries 32% more than the county average on its busiest stretch, where the median trip lasts 42.3 minutes.

5Railroad AvenueTrunk road · 3,063vehicles517trucks · 16.9%
Road class
Trunk road
Congestion ratio
3.6%
Median trip time
58.0 min
Drivers’ median age
40.3 yrs
Drivers’ average income
$83,607

Railroad Avenue leans on freight: 517 trucks a day, 16.9% of its traffic against 10.7% county-wide.

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

WilliamsDepartment 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 Williams County

The same traffic breakdown for the areas closest to Williams County, North Dakota.

Need segment-level traffic data?

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