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Traffic heat map of Yankton County, South Dakota: 241 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Broadway Avenue and 4th Street

Yankton County, South Dakota Traffic Counts

How busy are the roads of Yankton County, South Dakota? We measure 241 road miles, divided into 2,334 segments, with multi-sourced, cross-verified mobile and sensor data. Its highways carry the lowest truck share of any county in South Dakota, 8.4%. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 Yankton County, South Dakota

Traffic

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

vehicles per day2,726
Trucks

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

6.8%
Average travel time

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

30.7 min
Drivers’ average age

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

49.4 yrs
Drivers’ average income

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

$76,716

The average monitored road in Yankton County, South Dakota carries 2,726 vehicles per day. Across its 241 miles of monitored roads, that adds up to 395,215 vehicle-miles traveled per day (≈144 million per year). About 1 in 15 vehicles is a truck, fewer than the 1 in 10 across South Dakota.

Shorter trips than 88% of counties in South Dakota

At 2,726 vehicles per day, the average road in Yankton carries somewhat less traffic than the state average of 3,156 (14% less) - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 1.6% of South Dakota's statewide total. By volume, Yankton's 2,726 vehicles per day outpaces 85% of counties in South Dakota.

At 30.7 minutes, the average travel time is 5% lower than the state level. On travel time, Yankton runs shorter than 88% of counties in South Dakota.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Yankton County, South Dakota

Trafficvehicles per day5,120
Trucks8.4%
Average travel time31.2 min
Drivers’ average age48.9 yrs
Drivers’ average income$75,413

Highways carry a significant share of travel in Yankton County, South Dakota: 40% of all vehicle-miles. The average highway carries 5,120 vehicles per day, 128% more than the average non-highway road in the same area, which carries 2,247 vehicles per day.

With 20% of the road miles (48 miles in 389 segments), highways punch above their length, carrying 157,106 vehicle-miles traveled per day (≈57.3 million per year).

By highway travel volume, Yankton outranks 54% of counties in South Dakota.

The lowest highway truck share of any county in South Dakota

Highway truck concentration here runs 38% lower than the state average, at 8.4%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

At 8.4%, Yankton's highway truck concentration is the lowest in South Dakota. By raw truck volume, Yankton carries fewer highway trucks than 65% of counties in South Dakota.

non-highway traffic icon

Non-highway Traffic in Yankton County, South Dakota

Trafficvehicles per day2,247
Trucks5.7%
Average travel time30.6 min
Drivers’ average age50.0 yrs
Drivers’ average income$77,557

A little more than half of the driving in Yankton County, South Dakota happens on local roads: 60% of all vehicle-miles. On the average non-highway road, that comes to 2,247 vehicles per day.

Local roads make up 80% of the monitored road miles (193 miles in 1,945 segments) but carry less than their share of travel: 238,109 vehicle-miles traveled per day (≈86.9 million per year). Trucks make up 5.7% of non-highway traffic, about 1 in 18 vehicles.

Drivers from higher-income areas than 75% of counties in South Dakota

Compared to highways, non-highway routes see 33% fewer trucks by share.

Trip origins here have higher average income than 75% of counties in South Dakota. Yankton's median driver age is lower than 51% of counties in South Dakota.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Yankton County vs. South Dakota Traffic Comparison

Yankton County's biggest difference from the South Dakota average is its highway truck share, 38% below it. Its truck share is also 34% below.

MetricYankton CountySouth Dakota averageDifference
Traffic2,7263,156-13.6%
Truck % (Total Traffic)6.8%10.3%-33.9%
Truck % (Highway)8.4%13.6%-37.8%
Avg. Travel Time30.7 min32.5 min-5.3%

How Yankton County compares

Yankton County has the busiest roads among its nearby counties

Against the 4 nearest areas, Yankton County carries 149.0% more traffic on a typical road and moves 2.1 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.

Yankton 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
Yankton County2,7266.8%395,21530.7 minN/A
Clay County, South Dakota1,6078.6%244,63531.7 min8.8%
Bon Homme County, South Dakota5909.6%98,62841.7 minN/A
Cedar County, Nebraska1,37010.1%253,51634.6 minN/A
Turner County, South Dakota8127.6%152,12837.8 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Yankton County ranked within South Dakota

Yankton County records the lowest truck share on highways in South Dakota.

Yankton 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.
MeasureYankton CountySouth Dakota rank
Traffic volume (AADT)2,726#11 of 66
Highway vehicle-miles per day157,106#23 of 49
Truck share on highways8.4%#49 of 49
Highway trucks per day433#32 of 49
Average travel time30.7 min#58 of 66
Average driver income$76,716#17 of 66
Average driver age49.4 yrs#34 of 66

Yankton County ranks #11 of 66 on average daily traffic volume but #49 of 49 on truck share on highways - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Yankton County, South Dakota

The three busiest roads in Yankton County average 8,533 vehicles a day, 3.1 times the county average of 2,726 across all its monitored roads.

Broadway Avenue is the busiest road, at 10,460 vehicles a day, 473 of them trucks (4.5%). It also carries the most trucks.

SD Highway 50 carries longer journeys than most roads here, with a median trip of 44.8 minutes against 30.7 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Broadway AvenueTrunk road · 10,460vehicles473trucks · 4.5%
Road class
Trunk road
Median trip time
29.9 min
Drivers’ median age
49.5 yrs
Drivers’ average income
$74,911

Broadway Avenue carries 3.8 times the county average at its busiest, 473 of them trucks (4.5%, below the county-wide 6.8%).

24th StreetTrunk road · 8,115vehicles360trucks · 4.4%
Road class
Trunk road
Median trip time
33.3 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$71,621

4th Street carries 3.0 times the county average on its busiest stretch, where the median trip lasts 33.3 minutes.

38th StreetSecondary road · 7,025vehicles296trucks · 4.2%
Road class
Secondary road
Median trip time
26.4 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$80,006

At 2.6 times the county average, 8th Street draws drivers from neighborhoods averaging $80,006 in household income.

4Summit StreetSecondary road · 6,893vehicles228trucks · 3.3%
Road class
Secondary road
Median trip time
28.2 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$74,575

The busiest stretch of Summit Street carries 2.5 times the county average; trucks are 3.3% of it, below the county-wide 6.8%.

531st StreetPrimary road · 6,801vehicles349trucks · 5.1%
Road class
Primary road
Median trip time
29.9 min
Drivers’ median age
49.8 yrs
Drivers’ average income
$77,582

On its busiest stretch, 31st Street carries 2.5 times the county average; trucks are 5.1% of it, below the county-wide 6.8%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Broadway AvenueTrunk road · #1 by traffic10,460vehicles473trucks · 4.5%
2SD Highway 50Trunk road · 4,208vehicles410trucks · 9.7%
Road class
Trunk road
Median trip time
44.8 min
Drivers’ median age
43.1 yrs
Drivers’ average income
$75,742

At 54% more than the county average, SD Highway 50 draws drivers from neighborhoods averaging $75,742 in household income.

34th StreetTrunk road · #2 by traffic8,115vehicles360trucks · 4.4%
431st StreetPrimary road · #5 by traffic6,801vehicles349trucks · 5.1%
5SD 50 / SD 52 TruckPrimary road · 3,337vehicles322trucks · 9.6%
Road class
Primary road
Median trip time
34.3 min
Drivers’ median age
49.2 yrs
Drivers’ average income
$73,971

SD 50 / SD 52 Truck is busy by local standards, at 22% more than the county average on its busiest stretch; trucks are 9.6% of it, above the county-wide 6.8%.

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

YanktonDepartment 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 Yankton County

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

Need segment-level traffic data?

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