
Total Traffic Volume & Performance in Lincoln County, South Dakota
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,089 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 27.6 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. | 11.5% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $96,117 |
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A typical monitored road in Lincoln County, South Dakota sees 3,089 vehicles per day, while its 450 miles of monitored roads together handle 1,425,504 vehicle-miles traveled per day (≈520 million per year). About 1 in 11 vehicles is a truck, in line with South Dakota (10.3%).
Shorter trips than 95% of counties in South Dakota
Lincoln's average daily traffic volume of 3,089 vehicles per day is on par with the state average of 3,156. Network-wide, Lincoln accounts for about 5.8% of South Dakota's statewide total of vehicle-miles. 88% of counties in South Dakota see less traffic than Lincoln's 3,089 vehicles per day.
At 27.6 minutes, the average travel time is 15% lower than the state level. On travel time, Lincoln runs shorter than 95% of counties in South Dakota.
Congestion is somewhat lower than the state level, at a ratio of 11.5% (11% lower) - relevant for traffic control and delivery planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Lincoln County, South Dakota
| Traffic | vehicles per day10,007 |
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| Trucks | 14.8% |
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| Average travel time | 38.3 min |
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| Drivers’ average age | 43.4 yrs |
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| Drivers’ average income | $88,302 |
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Highways carry a significant share of travel in Lincoln County, South Dakota: 40% of all vehicle-miles. The average highway carries 10,007 vehicles per day, 240% more than the average non-highway road in the same area, which carries 2,942 vehicles per day.
With 14% of the road miles (62 miles in 106 segments), highways punch above their length, carrying 564,036 vehicle-miles traveled per day (≈206 million per year).
That puts Lincoln among the top 5 counties in South Dakota for highway travel volume.
The most highway trucks of any county in South Dakota
The concentration of trucks on highways (14.8%) is 9% higher than the state average for similar road classifications. The highway traffic mix is typical for South Dakota: neither freight- nor commuter-dominated.
56% of counties in South Dakota see a lower highway truck share than Lincoln's 14.8%. Lincoln also moves the highest raw count of highway trucks in South Dakota, at roughly 1,354 per day.

Non-highway Traffic in Lincoln County, South Dakota
| Traffic | vehicles per day2,942 |
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| Trucks | 5.6% |
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| Average travel time | 27.4 min |
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| Congestion ratio | 11.5% |
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| Drivers’ average age | 43.0 yrs |
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| Drivers’ average income | $99,602 |
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Local roads carry more than half of all travel in Lincoln County, South Dakota (60% of vehicle-miles). A typical local road sees 2,942 vehicles per day.
Local roads make up 86% of the monitored road miles (388 miles in 5,004 segments) but carry less than their share of travel: 861,468 vehicle-miles traveled per day (≈314 million per year). The truck share on non-highway roads is 5.6%.
The highest driver income of any county in South Dakota
Non-highway roads carry a truck concentration that's 62% lower than the highway network.
Non-highway congestion (11.5%) runs slightly lower than the state level (10% lower).
Trips here originate from the highest average driver income in South Dakota, at $96,117. 85% of counties in South Dakota have an older driver population than Lincoln.