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Traffic heat map of Davison County, South Dakota: 231 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Sanborn Boulevard

Davison County, South Dakota Traffic Counts

TrafficZoom tracks traffic on 231 road miles in Davison County, South Dakota, divided into 2,658 segments averaging 459 ft. Its busiest road, Sanborn Boulevard, carries 20,627 vehicles a day, 5.3 times the average road. 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 Davison County, South Dakota

Traffic

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

vehicles per day3,876
Trucks

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

10.3%
Average travel time

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

33.6 min
Drivers’ average age

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

48.3 yrs
Drivers’ average income

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

$66,113

Our data shows 3,876 vehicles per day on the average road in Davison County, South Dakota, and 566,972 vehicle-miles traveled per day (≈207 million per year) across its 231 miles of monitored roads. About 1 in 10 vehicles is a truck, in line with South Dakota (10.3%).

Busier roads than 92% of counties in South Dakota

Davison's average daily traffic volume is 23% higher than the state average - 3,876 vehicles per day against 3,156 - suggesting more traffic load per road - a critical factor for logistics and site planning. Across the whole network, that travel is about 2.3% of South Dakota's statewide total. 92% of counties in South Dakota see less traffic than Davison's 3,876 vehicles per day.

Journey times here (33.6 minutes on average) closely track the state level. On travel time, Davison runs shorter than 71% of counties in South Dakota.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Davison County, South Dakota

Trafficvehicles per day5,769
Trucks15.1%
Average travel time34.8 min
Drivers’ average age48.5 yrs
Drivers’ average income$68,873

Highways carry about half of all travel in Davison County, South Dakota, 48% of vehicle-miles. The average highway carries 5,769 vehicles per day, 55% more than the average non-highway road in the same area, which carries 3,733 vehicles per day.

Highways make up 25% of the monitored road miles (57 miles, 186 segments), so they carry more than their share: 272,143 vehicle-miles traveled per day (≈99.3 million per year).

By highway travel volume, Davison outranks 69% of counties in South Dakota.

More highway trucks than 83% of counties in South Dakota

At 15.1%, highway truck share is 11% higher than the state average. The highway traffic mix is typical for South Dakota: neither freight- nor commuter-dominated.

By truck concentration, highways here outrank 65% of counties in South Dakota. 83% of counties in South Dakota see fewer highway trucks per day than Davison's roughly 872.

non-highway traffic icon

Non-highway Traffic in Davison County, South Dakota

Trafficvehicles per day3,733
Trucks5.9%
Average travel time33.5 min
Drivers’ average age48.2 yrs
Drivers’ average income$65,056

Local roads carry about half of all travel in Davison County, South Dakota, 52% of vehicle-miles. On the average non-highway road, that comes to 3,733 vehicles per day.

Local roads make up 75% of the monitored road miles (174 miles in 2,472 segments) but carry less than their share of travel: 294,829 vehicle-miles traveled per day (≈108 million per year). About 1 in 17 vehicles on non-highway roads is a truck (5.9%).

Drivers from lower-income areas than 68% of counties in South Dakota

Compared to highways, non-highway routes see 61% fewer trucks by share.

68% of counties in South Dakota see higher average driver income among trip origins than Davison. 68% of counties in South Dakota have an older driver population than Davison.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Davison County vs. South Dakota Traffic Comparison

Of the four measures, average daily traffic per road differs most: Davison County runs 23% above the South Dakota average.

MetricDavison CountySouth Dakota averageDifference
Traffic3,8763,156+22.8%
Truck % (Total Traffic)10.3%10.3%+0.4%
Truck % (Highway)15.1%13.6%+11.3%
Avg. Travel Time33.6 min32.5 min+3.4%

How Davison County compares

Davison County has the busiest roads among its nearby counties

Against the 4 nearest areas, Davison County carries 275.6% more traffic on a typical road and moves 2.5 times the total daily travel; it has the busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Davison 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
Davison County3,87610.3%566,97233.6 minN/A
Hanson County, South Dakota94415.1%319,89730.0 minN/A
Aurora County, South Dakota1,10915.5%376,65737.3 minN/A
Sanborn County, South Dakota1,25512.2%140,88939.7 minN/A
Douglas County, South Dakota8209.7%72,71441.5 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Davison County ranked within South Dakota

Average daily traffic volume places Davison County #6 of 66 in South Dakota - the top quarter of the state.

Davison County ranked among 66 county-level areas in South Dakota (1 = highest); measures without data in every county rank a smaller field, down to 49.
MeasureDavison CountySouth Dakota rank
Traffic volume (AADT)3,876#6 of 66
Highway vehicle-miles per day272,143#16 of 49
Truck share on highways15.1%#18 of 49
Highway trucks per day872#9 of 49
Average travel time33.6 min#47 of 66
Average driver income$66,113#45 of 66
Average driver age48.3 yrs#45 of 66

Busiest roads in Davison County, South Dakota

On their busiest stretches, the three busiest roads in Davison County carry 17,639 vehicles a day on average, 4.6 times the typical road in the county (3,876).

Sanborn Boulevard is the busiest road, at 20,627 vehicles a day, 893 of them trucks (4.3%). Purple Heart Memorial Highway carries the most trucks, 1,949 a day (17.1% of its traffic), although it ranks #5 for all traffic.

Trips using Purple Heart Memorial Highway are long: a median of 47.5 minutes against 33.6 county-wide, the mark of a through route.

Freight stands out on Purple Heart Memorial Highway: trucks are 17.1% of the traffic there, against 10.3% county-wide.

1st Avenue is busy with cars rather than freight: only 4.1% of its traffic is trucks, against 10.3% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Sanborn BoulevardSecondary road · 20,627vehicles893trucks · 4.3%
Road class
Secondary road
Median trip time
36.4 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$58,394

A main artery: Sanborn Boulevard's busiest stretch carries 5.3 times the county average; trucks are 4.3% of it, below the county-wide 10.3%.

2Burr StreetPrimary road · 17,364vehicles963trucks · 5.5%
Road class
Primary road
Median trip time
28.1 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$64,627

On its busiest stretch, Burr Street carries 4.5 times the county average; trucks are 5.5% of it, below the county-wide 10.3%.

31st AvenueSecondary road · 14,926vehicles612trucks · 4.1%
Road class
Secondary road
Median trip time
33.5 min
Drivers’ median age
48.2 yrs
Drivers’ average income
$59,004

1st Avenue peaks at 14,926 vehicles a day, 3.9 times the county average; trucks are 4.1% of it, below the county-wide 10.3%.

4Havens AvenuePrimary road · 12,721vehicles686trucks · 5.4%
Road class
Primary road
Median trip time
28.9 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$65,162

Havens Avenue carries 3.3 times the county average at its busiest, 686 of them trucks (5.4%, below the county-wide 10.3%).

5Purple Heart Memorial HighwayMotorway · 11,421vehicles1,949trucks · 17.1%
Road class
Motorway
Median trip time
47.5 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$70,080

Purple Heart Memorial Highway carries 2.9 times the county average on its busiest stretch, where the median trip lasts 47.5 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Purple Heart Memorial HighwayMotorway · #5 by traffic11,421vehicles1,949trucks · 17.1%
2Burr StreetPrimary road · #2 by traffic17,364vehicles963trucks · 5.5%
3Sanborn BoulevardSecondary road · #1 by traffic20,627vehicles893trucks · 4.3%
4Ohlman StreetTrunk road · 8,968vehicles788trucks · 8.8%
Road class
Trunk road
Median trip time
31.9 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$65,385

At 2.3 times the county average, Ohlman Street draws drivers from neighborhoods averaging $65,385 in household income.

5Havens AvenuePrimary road · #4 by traffic12,721vehicles686trucks · 5.4%
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

DavisonDepartment 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 Davison County

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

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.