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Traffic heat map of Bennett County, South Dakota: 77 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 18 and 1st Avenue

Bennett County, South Dakota Traffic Counts

TrafficZoom tracks traffic on 77 road miles in Bennett County, South Dakota, divided into 280 segments averaging 1,450 ft. The average road here carries 553 vehicles a day, 82% less than the South Dakota average of 3,156. 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 Bennett County, South Dakota

Traffic

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

vehicles per day553
Trucks

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

11.3%
Average travel time

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

34.8 min
Drivers’ average age

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

39.9 yrs
Drivers’ average income

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

$63,687

A typical monitored road in Bennett County, South Dakota sees 553 vehicles per day, while its 77 miles of monitored roads together handle 32,769 vehicle-miles traveled per day (≈12.0 million per year). Trucks are 11.3% of traffic, close to the 10.3% across South Dakota.

Traffic 82% below the South Dakota average

At 553 vehicles per day, the average monitored road in Bennett carries 82% less traffic than the state average of 3,156, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Bennett accounts for about 0.1% of South Dakota's statewide total of vehicle-miles. 89% of counties in South Dakota see more traffic than Bennett's 553 vehicles per day.

Journey times run 7% higher than the state level, at 34.8 minutes on average. 58% of counties in South Dakota have a longer average travel time than Bennett's 34.8 minutes.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Bennett County, South Dakota, the peak hour concentrates about 7% of the day's traffic.

Bennett County vs. South Dakota Traffic Comparison

Of the four measures, average daily traffic per road differs most: Bennett County runs 82% below the South Dakota average.

MetricBennett CountySouth Dakota averageDifference
Traffic5533,156-82.5%
Truck % (Total Traffic)11.3%10.3%+9.5%
Avg. Travel Time34.8 min32.5 min+7.3%

How Bennett County compares

Bennett County moves the least traffic of its nearby counties

Against the 4 nearest areas, Bennett County moves 16.8% of the total daily travel and carries 41.4% less traffic on a typical road; it has the fourth busiest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Bennett 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
Bennett County55311.3%32,76934.8 minN/A
Jackson County, South Dakota1,06417.8%441,18349.7 minN/A
Oglala Lakota County, South Dakota53910.2%75,59438.7 minN/A
Todd County, South Dakota1,24212.6%110,80038.4 minN/A
Cherry County, Nebraska92714.9%152,03333.3 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Bennett County ranked within South Dakota

Average driver age places Bennett County #64 of 66 in South Dakota - the bottom quarter of the state.

Bennett County ranked among 66 county-level areas in South Dakota (1 = highest).
MeasureBennett CountySouth Dakota rank
Traffic volume (AADT)553#59 of 66
Average travel time34.8 min#39 of 66
Average driver income$63,687#50 of 66
Average driver age39.9 yrs#64 of 66

Busiest roads in Bennett County, South Dakota

Traffic concentrates on a few corridors: the three busiest roads average 652 vehicles a day, against 553 on the average road in Bennett County.

US 18 leads with 806 vehicles a day, 77 of them trucks (9.6%). It also carries the most trucks.

Trips using SD 73 are long: a median of 55.5 minutes against 34.8 county-wide, the mark of a through route.

Few trucks use 1st Avenue: 4.8% of its traffic, under half the county's 11.3%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 18Primary road · 806vehicles77trucks · 9.6%
Road class
Primary road
Median trip time
32.9 min
Drivers’ median age
39.2 yrs
Drivers’ average income
$54,838

At 46% more than the county average, US 18 draws drivers from neighborhoods averaging $54,838 in household income.

21st AvenueTertiary road · 663vehicles32trucks · 4.8%
Road class
Tertiary road
Median trip time
22.6 min
Drivers’ median age
41.2 yrs
Drivers’ average income
$56,495

1st Avenue is a local road at heart: the median trip using it lasts 22.6 minutes, against 34.8 for the county.

3Bennett AvenuePrimary road · 487vehicles60trucks · 12.3%
Road class
Primary road
Median trip time
37.9 min
Drivers’ median age
40.0 yrs
Drivers’ average income
$65,314

Even at its busiest, Bennett Avenue carries 12% less than the county average; trucks are 12.3% of it, above the county-wide 11.3%.

4SD 73Primary road · 428vehicles52trucks · 12.1%
Road class
Primary road
Median trip time
55.5 min

SD 73 is a quieter road: its busiest stretch carries 23% less than the county average; trucks are 12.1% of it, above the county-wide 11.3%.

5Allen RoadTertiary road · 259vehicles44trucks · 16.9%
Road class
Tertiary road
Median trip time
45.7 min

Drivers on Allen Road are on long journeys, a median 45.7 minutes against 34.8 county-wide: a through route more than a local street.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 18Primary road · #1 by traffic806vehicles77trucks · 9.6%
2Bennett AvenuePrimary road · #3 by traffic487vehicles60trucks · 12.3%
3SD 73Primary road · #4 by traffic428vehicles52trucks · 12.1%
4Allen RoadTertiary road · #5 by traffic259vehicles44trucks · 16.9%
51st AvenueTertiary road · #2 by traffic663vehicles32trucks · 4.8%
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

BennettDepartment 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 Bennett County

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

Need segment-level traffic data?

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