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Clark County, South Dakota Traffic Counts

This page delivers traffic analytics for Clark County, South Dakota. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Clark County, South Dakota among 141 road miles divided in 372 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 2,007 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
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Total Traffic Volume & Performance

Traffic

Traffic

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

775

Trucks

Trucks

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

9.4%

Average travel time

Average travel time

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

48.3 min

Drivers’ average age

Drivers’ average age

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

52.5 yrs

Drivers’ average income

Drivers’ average income

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

$64,864

Our data indicates an estimated average traffic volume of 775 vehicles per day in Clark County, South Dakota that results in 107,865 vehicle-miles traveled per day (≈39.4 million per year). The traffic stream is comprised of an average of 1 truck for every 11 vehicles. Typical time spent behind the wheel per trip is 48.3 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the South Dakota state averages: Clark sees 75% lower average daily traffic volume than the state average (775 vehicles per day against 3,156), suggesting less demand on each road - a critical factor for logistics and site planning. In total volume terms, its road network carries 107,865 vehicle-miles traveled per day (≈39.4 million per year), about 0.4% of South Dakota's statewide total. Journey times run 49% higher than the state level, at 48.3 minutes on average. Clark carries more traffic than 23% of counties in South Dakota. On travel time, Clark runs longer than 86% of counties in South Dakota.

Highway vs. Non-Highway Traffic Analysis

Analytical insight

N/A
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Non-highway traffic

Traffic

Traffic

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

775

Trucks

Trucks

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

9.4%

Average travel time

Average travel time

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

48.3 min

Drivers’ average age

Drivers’ average age

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

52.5 yrs

Drivers’ average income

Drivers’ average income

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

$64,864

The non-highway road network in Clark County, South Dakota supports a substantial volume of traffic. The average non-highway road carries 775 vehicles per day. That average covers 141 non-highway road miles divided in 372 segments (average segment length 2,007 ft), together carrying 107,865 vehicle-miles traveled per day (≈39.4 million per year). Trucks constitute 9.4% of non-highway traffic.

Analytical insight

Clark's overall average travel time exceeds 86% of counties in South Dakota. 29% of counties in South Dakota see lower average driver income among trip origins than Clark. 72% of counties in South Dakota have a younger driver population than Clark.

Time-of-Day & Seasonal Patterns

Analytical insight

In Clark County, South Dakota, the peak hour concentrates about 8% of the day's traffic.

Traffic Flow Profile Comparison

Metric

Clark

South Dakota
Average

Difference

Traffic

775

3,156

-75.4%

Truck % (Total Traffic)

9.4%

10.3%

-8.1%

Truck % (Highway)

13.6%

Avg. Travel Time

48.3 min

32.5 min

+48.8%

How Clark County compares

Clark County against nearby areas

Set against the average of the 4 areas nearest to it, Clark County carries 62.7% less traffic on a typical road and moves 28.2% of the total daily travel; it has the quietest roads of the five. Quiet roads and long journeys - a rural pattern, where the distance between destinations rather than the traffic on the way is what takes the time.

Clark County and the 4 nearest county-level areas by centroid distance, with the South Dakota average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Clark County7759.4%107,86548.3 minN/A
Codington County, South Dakota5,1667.5%858,24433.9 minN/A
Spink County, South Dakota1,18210.9%267,16237.9 minN/A
Day County, South Dakota95111.2%204,38542.5 minN/A
Hamlin County, South Dakota1,01710.2%198,30634.6 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Clark County ranked within South Dakota

Clark County sits in the top quarter of the South Dakota field on average travel time, at #10 of 66.

Where Clark County sits among South Dakota's county-level areas on each measure. Rank 1 is the highest value in the state, whether or not that is the outcome you want; the field size differs by measure because not every county carries highway data.
MeasureClark CountySouth Dakota rank
Traffic volume (AADT)775#51 of 66
Average travel time48.3 min#10 of 66
Average driver income$64,864#47 of 66
Average driver age52.5 yrs#19 of 66

Clark County ranks #10 of 66 on average travel time but #51 of 66 on average daily traffic volume - the two describe the same roads and are worth reading together rather than either on its own.

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

South DakotaDepartment of Transportation

Historical traffic pattern databases

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
TrafficZoom methodology
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Data current as of:
Q3 2026

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Counties near Clark County

The same traffic breakdown for the areas closest to Clark County, South Dakota.

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