Need segment-level traffic data?

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

Get insights →
Traffic heat map of Mellette County, South Dakota: 82 miles of roads shaded from blue (light) to red (heavy traffic)

Mellette County, South Dakota Traffic Counts

TrafficZoom tracks traffic on 82 road miles in Mellette County, South Dakota, divided into 298 segments averaging 1,450 ft. Trips here are among the 3 longest of any county in South Dakota. 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
Find my place
total traffic icon

Total Traffic Volume & Performance in Mellette County, South Dakota

Traffic

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

vehicles per day594
Trucks

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

14.7%
Average travel time

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

55.2 min
Drivers’ average age

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

49.1 yrs
Drivers’ average income

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

$56,513

Our data shows 594 vehicles per day on the average road in Mellette County, South Dakota, and 43,850 vehicle-miles traveled per day (≈16.0 million per year) across its 82 miles of monitored roads. At 14.7%, the truck share runs above the 10.3% across South Dakota: about 1 in 7 vehicles.

Longer trips than 98% of counties in South Dakota

Mellette's average daily traffic volume is 81% lower than the state average - 594 vehicles per day against 3,156 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is about 0.2% of South Dakota's statewide total. Mellette carries less traffic than 85% of counties in South Dakota.

The average trip takes 55.2 minutes, 70% higher than the state level. Its average travel time of 55.2 minutes is longer than 98% of counties in South Dakota.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Mellette County, South Dakota

Trafficvehicles per day941
Trucks15.4%
Average travel time42.0 min
Drivers’ average age49.1 yrs
Drivers’ average income$57,453

A little more than half of the driving in Mellette County, South Dakota happens on highways: 59% of all vehicle-miles. The average highway carries 941 vehicles per day, 183% more than the average non-highway road in the same area, which carries 333 vehicles per day.

With 33% of the road miles (27 miles in 128 segments), highways punch above their length, carrying 25,659 vehicle-miles traveled per day (≈9.4 million per year).

Fewer highway trucks than 90% of counties in South Dakota

Highway truck concentration here runs 14% higher than the state average, at 15.4%. The highway traffic mix is typical for South Dakota: neither freight- nor commuter-dominated.

Mellette's highway truck share (15.4%) is higher than 69% of counties in South Dakota. 90% of counties in South Dakota see more highway trucks per day than Mellette's roughly 145.

non-highway traffic icon

Non-highway Traffic in Mellette County, South Dakota

Trafficvehicles per day333
Trucks13.6%
Average travel time65.2 min
Drivers’ average age49.4 yrs
Drivers’ average income$54,580

Local roads carry a significant share of travel in Mellette County, South Dakota: 41% of all vehicle-miles. The average non-highway road carries 333 vehicles per day.

Local roads make up 67% of the monitored road miles (55 miles in 170 segments) but carry less than their share of travel: 18,192 vehicle-miles traveled per day (≈6.6 million per year). About 1 in 7 vehicles on non-highway roads is a truck (13.6%).

Drivers from lower-income areas than 88% of counties in South Dakota

Compared to highways, non-highway routes see 12% fewer trucks by share.

Trip origins here have lower average income than 88% of counties in South Dakota. 54% of counties in South Dakota have an older driver population than Mellette.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Mellette County vs. South Dakota Traffic Comparison

Of the four measures, average daily traffic per road differs most: Mellette County runs 81% below the South Dakota average. Its average travel time, by contrast, is 70% above.

MetricMellette CountySouth Dakota averageDifference
Traffic5943,156-81.2%
Truck % (Total Traffic)14.7%10.3%+42.7%
Truck % (Highway)15.4%13.6%+13.6%
Avg. Travel Time55.2 min32.5 min+70.1%

How Mellette County compares

Mellette County moves the least traffic of its nearby counties

Compared with its 4 closest neighbours, Mellette County moves 17.7% of the total daily travel and carries 58.2% less traffic on a typical road; 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.

Mellette 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
Mellette County59414.7%43,85055.2 minN/A
Todd County, South Dakota1,24212.6%110,80038.4 minN/A
Jones County, South Dakota1,47222.2%309,39459.6 minN/A
Jackson County, South Dakota1,06417.8%441,18349.7 minN/A
Tripp County, South Dakota1,90910.2%129,80634.7 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Mellette County ranked within South Dakota

Mellette County sits in South Dakota's top three on average travel time.

Mellette 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.
MeasureMellette CountySouth Dakota rank
Traffic volume (AADT)594#56 of 66
Highway vehicle-miles per day25,659#45 of 49
Truck share on highways15.4%#16 of 49
Highway trucks per day145#44 of 49
Average travel time55.2 min#2 of 66
Average driver income$56,513#58 of 66
Average driver age49.1 yrs#36 of 66

The two ends of this table sit far apart: #2 of 66 on average travel time, against #45 of 49 on highway travel volume.

Busiest roads in Mellette County, South Dakota

On their busiest stretches, the three busiest roads in Mellette County carry 557 vehicles a day on average, 6% less than the typical road in the county (594).

Blue Star Memorial Highway/Vietnam Veterans Memorial Highway leads with 945 vehicles a day, 146 of them trucks (15.4%). No other road comes close: SD 44, in second place, carries 539. It also carries the most trucks.

Trips on County Road are short, a median of 34.3 minutes against 55.2 county-wide, so it serves mostly local traffic.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Blue Star Memorial Highway/Vietnam Veterans Memorial HighwayTrunk road · 945vehicles146trucks · 15.4%
Road class
Trunk road
Median trip time
42.0 min
Drivers’ median age
49.1 yrs
Drivers’ average income
$57,453

Blue Star Memorial Highway/Vietnam Veterans Memorial Highway peaks at 945 vehicles a day, 59% more than the county average; trucks are 15.4% of it, above the county-wide 14.7%.

2SD 44Secondary road · 539vehicles76trucks · 14.2%
Road class
Secondary road
Median trip time
66.7 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$54,867

SD 44 is a quieter road: its busiest stretch carries 9% less than the county average; trucks are 14.2% of it, in line with the county-wide 14.7%.

3County RoadSecondary road · 186vehicles25trucks · 13.2%
Road class
Secondary road
Median trip time
34.3 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$54,864

Even at its busiest, County Road carries 69% less than the county average; trucks are 13.2% of it, below the county-wide 14.7%.

4SD 63Secondary road · 102vehicles19trucks · 18.3%
Road class
Secondary road
Median trip time
58.8 min

SD 63 is a quieter road: its busiest stretch carries 83% less than the county average; trucks are 18.3% of it, above the county-wide 14.7%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Blue Star Memorial Highway/Vietnam Veterans Memorial HighwayTrunk road · #1 by traffic945vehicles146trucks · 15.4%
2SD 44Secondary road · #2 by traffic539vehicles76trucks · 14.2%
3County RoadSecondary road · #3 by traffic186vehicles25trucks · 13.2%
4SD 63Secondary road · #4 by traffic102vehicles19trucks · 18.3%
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

MelletteDepartment 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.
link arrow icon
Data current as of:
Q3 2026

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

Counties near Mellette County

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

Need segment-level traffic data?

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