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Traffic heat map of Douglas County, South Dakota: 90 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Braddock Street and 392nd Avenue

Douglas County, South Dakota Traffic Counts

The average road here carries 820 vehicles a day, 74% less than the South Dakota average of 3,156. This page breaks down traffic in Douglas County, South Dakota across 90 miles of monitored roads split into 551 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
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 Douglas County, South Dakota

Traffic

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

vehicles per day820
Trucks

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

9.7%
Average travel time

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

41.5 min
Drivers’ average age

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

52.5 yrs
Drivers’ average income

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

$76,549

Our data shows 820 vehicles per day on the average road in Douglas County, South Dakota, and 72,714 vehicle-miles traveled per day (≈26.5 million per year) across its 90 miles of monitored roads. Trucks are 9.7% of traffic, close to the 10.3% across South Dakota.

Traffic 74% below the South Dakota average

At 820 vehicles per day, the average monitored road in Douglas carries 74% 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. In total volume terms, its road network carries about 0.3% of South Dakota's statewide total of vehicle-miles. Douglas carries less traffic than 68% of counties in South Dakota.

At 41.5 minutes, the average travel time is 28% higher than the state level. Its average travel time of 41.5 minutes is longer than 77% of counties in South Dakota.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Douglas County vs. South Dakota Traffic Comparison

Douglas County's biggest difference from the South Dakota average is its average daily traffic per road, 74% below it. Its average travel time, by contrast, is 28% above.

MetricDouglas CountySouth Dakota averageDifference
Traffic8203,156-74.0%
Truck % (Total Traffic)9.7%10.3%-5.4%
Avg. Travel Time41.5 min32.5 min+27.9%

How Douglas County compares

Douglas County moves the least traffic of its nearby counties

Against the 4 nearest areas, Douglas County carries 50.9% less traffic on a typical road and moves 29.8% of the total daily travel; it has the fourth busiest 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.

Douglas 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
Douglas County8209.7%72,71441.5 minN/A
Charles Mix County, South Dakota1,1189.6%149,36234.0 minN/A
Hutchinson County, South Dakota1,09210.1%161,50940.4 minN/A
Davison County, South Dakota3,87610.3%566,97233.6 minN/A
Bon Homme County, South Dakota5909.6%98,62841.7 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Douglas County ranked within South Dakota

Douglas County sits in the top quarter of the South Dakota field on average travel time, at #16 of 66.

Douglas County ranked among 66 county-level areas in South Dakota (1 = highest).
MeasureDouglas CountySouth Dakota rank
Traffic volume (AADT)820#45 of 66
Average travel time41.5 min#16 of 66
Average driver income$76,549#19 of 66
Average driver age52.5 yrs#18 of 66

Busiest roads in Douglas County, South Dakota

On their busiest stretches, the three busiest roads in Douglas County carry 1,483 vehicles a day on average, 81% more than the typical road in the county (820).

Braddock Street is the busiest road, at 1,767 vehicles a day, 194 of them trucks (11.0%). It also carries the most trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Braddock StreetPrimary road · 1,767vehicles194trucks · 11.0%
Road class
Primary road
Median trip time
42.1 min
Drivers’ median age
53.9 yrs
Drivers’ average income
$74,144

Braddock Street peaks at 1,767 vehicles a day, 2.2 times the county average; trucks are 11.0% of it, above the county-wide 9.7%.

2392nd AvenuePrimary road · 1,364vehicles133trucks · 9.7%
Road class
Primary road
Median trip time
40.8 min
Drivers’ median age
54.6 yrs
Drivers’ average income
$74,218

392nd Avenue carries 66% more than the county average at its busiest, 133 of them trucks (9.7%, in line with the county-wide 9.7%).

3276th StreetPrimary road · 1,319vehicles128trucks · 9.7%
Road class
Primary road
Median trip time
46.0 min
Drivers’ median age
50.7 yrs
Drivers’ average income
$76,705

276th Street carries 61% more than the county average on its busiest stretch, where the median trip lasts 46.0 minutes.

4389th AvenuePrimary road · 1,224vehicles124trucks · 10.1%
Road class
Primary road
Median trip time
38.4 min
Drivers’ median age
54.6 yrs
Drivers’ average income
$75,454

At 49% more than the county average, 389th Avenue draws drivers from neighborhoods averaging $75,454 in household income.

5US 281Primary road · 934vehicles106trucks · 11.3%
Road class
Primary road
Median trip time
46.9 min
Drivers’ median age
54.1 yrs
Drivers’ average income
$75,013

US 281 is busy by local standards, at 14% more than the county average on its busiest stretch; trucks are 11.3% of it, above the county-wide 9.7%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Braddock StreetPrimary road · #1 by traffic1,767vehicles194trucks · 11.0%
2392nd AvenuePrimary road · #2 by traffic1,364vehicles133trucks · 9.7%
3276th StreetPrimary road · #3 by traffic1,319vehicles128trucks · 9.7%
4389th AvenuePrimary road · #4 by traffic1,224vehicles124trucks · 10.1%
5US 281Primary road · #5 by traffic934vehicles106trucks · 11.3%
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

DouglasDepartment 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 Douglas County

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

Need segment-level traffic data?

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