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Traffic heat map of Todd County, South Dakota: 127 miles of roads shaded from blue (light) to red (heavy traffic), busiest on 2nd Street and Adams Street

Todd County, South Dakota Traffic Counts

How busy are the roads of Todd County, South Dakota? We measure 127 road miles, divided into 620 segments, with multi-sourced, cross-verified mobile and sensor data. The average road here carries 1,242 vehicles a day, 61% less than the South Dakota average of 3,156. 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 icon

Total Traffic Volume & Performance in Todd County, South Dakota

Traffic

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

vehicles per day1,242
Trucks

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

12.6%
Average travel time

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

38.4 min
Drivers’ average age

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

41.8 yrs
Drivers’ average income

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

$51,460

The average monitored road in Todd County, South Dakota carries 1,242 vehicles per day. Across its 127 miles of monitored roads, that adds up to 110,800 vehicle-miles traveled per day (≈40.4 million per year). Trucks are 12.6% of traffic, more than the 10.3% across South Dakota.

Traffic 61% below the South Dakota average

At 1,242 vehicles per day, the average monitored road in Todd carries 61% less traffic than the state average of 3,156, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is about 0.5% of South Dakota's statewide total. By volume, Todd's 1,242 vehicles per day outpaces 58% of counties in South Dakota.

At 38.4 minutes, the average travel time is 18% higher than the state level. On travel time, Todd runs longer than 58% of counties in South Dakota.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Todd County, South Dakota

Trafficvehicles per day2,272
Trucks12.5%
Average travel time41.7 min
Drivers’ average age42.4 yrs
Drivers’ average income$53,957

A little more than half of the driving in Todd County, South Dakota happens on highways: 57% of all vehicle-miles. The average highway carries 2,272 vehicles per day, 223% more than the average non-highway road in the same area, which carries 703 vehicles per day.

Highways make up 29% of the monitored road miles (36 miles, 213 segments), so they carry more than their share: 62,972 vehicle-miles traveled per day (≈23.0 million per year).

Fewer highway trucks than 79% of counties in South Dakota

The concentration of trucks on highways (12.5%) is 8% lower than the state average for similar road classifications. The highway traffic mix is typical for South Dakota: neither freight- nor commuter-dominated.

By truck concentration, highways here trail 69% of counties in South Dakota. 79% of counties in South Dakota see more highway trucks per day than Todd's roughly 284.

non-highway traffic icon

Non-highway Traffic in Todd County, South Dakota

Trafficvehicles per day703
Trucks12.6%
Average travel time36.7 min
Drivers’ average age40.1 yrs
Drivers’ average income$46,105

A significant share of driving in Todd County, South Dakota, 43% of vehicle-miles, happens on local roads. The average non-highway road carries 703 vehicles per day.

Local roads make up 71% of the monitored road miles (90 miles in 407 segments) but carry less than their share of travel: 47,827 vehicle-miles traveled per day (≈17.5 million per year). The truck share on non-highway roads is 12.6%.

Drivers from lower-income areas than 98% of counties in South Dakota

Local roads and highways carry about the same truck share here (12.6% against 12.5%), so freight is not confined to the highways.

98% of counties in South Dakota see higher average driver income among trip origins than Todd. 91% of counties in South Dakota have an older driver population than Todd.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 11:00 AM–12:00 PM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 67% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 32% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +14% versus the annual average.
Lowest month:
January is the quietest month, with volumes -23% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Todd County, South Dakota, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +14% in high season.

Todd County vs. South Dakota Traffic Comparison

The average daily traffic per road sets Todd County apart: 61% below the South Dakota average. Its truck share, by contrast, is 22% above.

MetricTodd CountySouth Dakota averageDifference
Traffic1,2423,156-60.6%
Truck % (Total Traffic)12.6%10.3%+22.2%
Truck % (Highway)12.5%13.6%-7.8%
Avg. Travel Time38.4 min32.5 min+18.3%

How Todd County compares

Todd County against nearby counties

Todd County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the third busiest roads of the five.

Todd 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
Todd County1,24212.6%110,80038.4 minN/A
Mellette County, South Dakota59414.7%43,85055.2 minN/A
Tripp County, South Dakota1,90910.2%129,80634.7 minN/A
Jones County, South Dakota1,47222.2%309,39459.6 minN/A
Bennett County, South Dakota55311.3%32,76934.8 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Todd County ranked within South Dakota

Todd County sits in the bottom quarter of the South Dakota field on average driver income, at #65 of 66.

Todd 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.
MeasureTodd CountySouth Dakota rank
Traffic volume (AADT)1,242#28 of 66
Highway vehicle-miles per day62,972#38 of 49
Truck share on highways12.5%#34 of 49
Highway trucks per day284#39 of 49
Average travel time38.4 min#28 of 66
Average driver income$51,460#65 of 66
Average driver age41.8 yrs#60 of 66

Busiest roads in Todd County, South Dakota

Traffic concentrates on a few corridors: the three busiest roads average 2,829 vehicles a day, against 1,242 on the average road in Todd County.

2nd Street is the busiest road, at 3,688 vehicles a day, 353 of them trucks (9.6%). It tops the truck ranking too, with the most trucks.

Sioux Boulevard carries longer journeys than most roads here, with a median trip of 57.7 minutes against 38.4 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
12nd StreetTrunk road · 3,688vehicles353trucks · 9.6%
Road class
Trunk road
Median trip time
38.2 min
Drivers’ median age
40.5 yrs
Drivers’ average income
$44,272

2nd Street carries 3.0 times the county average at its busiest, 353 of them trucks (9.6%, below the county-wide 12.6%).

2Adams StreetTrunk road · 2,936vehicles271trucks · 9.2%
Road class
Trunk road
Median trip time
44.9 min
Drivers’ median age
43.7 yrs
Drivers’ average income
$44,515

Adams Street carries 2.4 times the county average on its busiest stretch, where the median trip lasts 44.9 minutes.

3Blue Star Memorial Highway/Vietnam Veterans Memorial HighwayTrunk road · 1,863vehicles228trucks · 12.2%
Road class
Trunk road
Median trip time
46.2 min
Drivers’ median age
46.6 yrs
Drivers’ average income
$53,816

Blue Star Memorial Highway/Vietnam Veterans Memorial Highway carries 50% more than the county average at its busiest, 228 of them trucks (12.2%, in line with the county-wide 12.6%).

4US 18Primary road · 1,105vehicles130trucks · 11.7%
Road class
Primary road
Median trip time
36.4 min
Drivers’ median age
41.0 yrs
Drivers’ average income
$43,828

Even at its busiest, US 18 carries 11% less than the county average; trucks are 11.7% of it, below the county-wide 12.6%.

5Sioux BoulevardSecondary road · 841vehicles101trucks · 12.0%
Road class
Secondary road
Median trip time
57.7 min
Drivers’ median age
37.0 yrs
Drivers’ average income
$48,243

Sioux Boulevard is a quieter road: its busiest stretch carries 32% less than the county average; trucks are 12.0% of it, in line with the county-wide 12.6%.

Ranked by trucks per day

Cars and light vehiclesTrucks
12nd StreetTrunk road · #1 by traffic3,688vehicles353trucks · 9.6%
2Adams StreetTrunk road · #2 by traffic2,936vehicles271trucks · 9.2%
3Blue Star Memorial Highway/Vietnam Veterans Memorial HighwayTrunk road · #3 by traffic1,863vehicles228trucks · 12.2%
4US 18Primary road · #4 by traffic1,105vehicles130trucks · 11.7%
5Sioux BoulevardSecondary road · #5 by traffic841vehicles101trucks · 12.0%
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

ToddDepartment 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 Todd County

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

Need segment-level traffic data?

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