
Total Traffic Volume & Performance in Cass County, North Dakota
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day4,521 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 7.2% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 35.8 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 17.0% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 38.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $92,371 |
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The average monitored road in Cass County, North Dakota carries 4,521 vehicles per day. Across its 830 miles of monitored roads, that adds up to 2,717,476 vehicle-miles traveled per day (≈992 million per year). Trucks are a smaller part of the mix than across North Dakota: 7.2% against 11.1%.
Traffic 108% above the North Dakota average
Cass sees 108% higher average daily traffic volume than the state average (4,521 vehicles per day against 2,174), suggesting more demand on each road - prime passing trade for storefronts, with more competition for road space. Across the whole network, that travel is about 15% of North Dakota's statewide total. Cass carries more traffic than 98% of counties in North Dakota.
At 35.8 minutes, the average travel time matches the state level closely. On travel time, Cass runs shorter than 62% of counties in North Dakota.
At 61% higher than the state level, the 17.0% congestion ratio signals more pronounced congestion - expect markedly slower peak-hour deliveries and unreliable arrival times.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Cass County, North Dakota
| Traffic | vehicles per day8,089 |
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| Trucks | 11.9% |
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| Average travel time | 35.9 min |
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| Congestion ratio | 19.5% |
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| Drivers’ average age | 39.5 yrs |
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| Drivers’ average income | $93,747 |
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A significant share of driving in Cass County, North Dakota, 37% of vehicle-miles, happens on highways. The average highway carries 8,089 vehicles per day, 83% more than the average non-highway road in the same area, which carries 4,408 vehicles per day.
With 22% of the road miles (181 miles in 268 segments), highways punch above their length, carrying 999,494 vehicle-miles traveled per day (≈365 million per year).
No county in North Dakota moves more traffic on its highways.
Lower highway truck share than 94% of counties in North Dakota
Highway truck concentration here runs 18% lower than the state average, at 11.9%. Trucks are a small share of a very large highway flow, so Cass still moves heavy freight volumes alongside its passenger traffic.
94% of counties in North Dakota see a higher highway truck share than Cass's 11.9%. By raw truck volume, Cass carries more highway trucks than 94% of counties in North Dakota.

Non-highway Traffic in Cass County, North Dakota
| Traffic | vehicles per day4,408 |
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| Trucks | 4.5% |
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| Average travel time | 35.8 min |
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| Congestion ratio | 16.9% |
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| Drivers’ average age | 38.5 yrs |
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| Drivers’ average income | $91,710 |
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A little more than half of the driving in Cass County, North Dakota happens on local roads: 63% of all vehicle-miles. The average non-highway road carries 4,408 vehicles per day.
Their share of road miles is similar, 78% (650 miles in 8,453 segments), carrying 1,717,982 vehicle-miles traveled per day (≈627 million per year). The truck share on non-highway roads is 4.5%.
Younger drivers than 98% of counties in North Dakota
The concentration of trucks on non-highway roads is 62% lower than on highways.
The non-highway congestion ratio of 16.9% is 56% higher than the state level, suggesting slower local mobility than the state average.
94% of counties in North Dakota see lower average driver income among trip origins than Cass. The driver population here skews younger than 98% of counties in North Dakota.