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Traffic heat map of Charles Mix County, South Dakota: 191 miles of roads shaded from blue (light) to red (heavy traffic), busiest on 7th Street and Main Street

Charles Mix County, South Dakota Traffic Counts

The average road here carries 1,118 vehicles a day, 65% less than the South Dakota average of 3,156. This page breaks down traffic in Charles Mix County, South Dakota across 191 miles of monitored roads split into 1,161 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 Charles Mix County, South Dakota

Traffic

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

vehicles per day1,118
Trucks

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

9.6%
Average travel time

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

34.0 min
Drivers’ average age

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

49.6 yrs
Drivers’ average income

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

$64,061

A typical monitored road in Charles Mix County, South Dakota sees 1,118 vehicles per day, while its 191 miles of monitored roads together handle 149,362 vehicle-miles traveled per day (≈54.5 million per year). Trucks are 9.6% of traffic, close to the 10.3% across South Dakota.

Traffic 65% below the South Dakota average

Charles Mix sees 65% lower average daily traffic volume than the state average (1,118 vehicles per day against 3,156), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is about 0.6% of South Dakota's statewide total. By volume, Charles Mix's 1,118 vehicles per day outpaces 54% of counties in South Dakota.

The average trip takes 34.0 minutes, on par with the state level. Its average travel time of 34.0 minutes is shorter than 68% of counties in South Dakota.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Charles Mix County vs. South Dakota Traffic Comparison

The average daily traffic per road sets Charles Mix County apart: 65% below the South Dakota average.

MetricCharles Mix CountySouth Dakota averageDifference
Traffic1,1183,156-64.6%
Truck % (Total Traffic)9.6%10.3%-6.7%
Avg. Travel Time34.0 min32.5 min+4.8%

How Charles Mix County compares

Charles Mix County against nearby counties

Set against the average of the 4 areas nearest to it, Charles Mix County carries 47.7% more traffic on a typical road; it has the busiest roads of the five.

Charles Mix 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
Charles Mix County1,1189.6%149,36234.0 minN/A
Douglas County, South Dakota8209.7%72,71441.5 minN/A
Boyd County, Nebraska50810.5%24,17531.7 minN/A
Bon Homme County, South Dakota5909.6%98,62841.7 minN/A
Aurora County, South Dakota1,10915.5%376,65737.3 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Charles Mix County ranked within South Dakota

Charles Mix County ranked among 66 county-level areas in South Dakota (1 = highest).
MeasureCharles Mix CountySouth Dakota rank
Traffic volume (AADT)1,118#31 of 66
Average travel time34.0 min#45 of 66
Average driver income$64,061#48 of 66
Average driver age49.6 yrs#32 of 66

Busiest roads in Charles Mix County, South Dakota

The three busiest roads in Charles Mix County average 2,554 vehicles a day, 2.3 times the county average of 1,118 across all its monitored roads.

7th Street leads with 2,881 vehicles a day, 261 of them trucks (9.1%). It also carries the most trucks.

Trips using SD 45 are long: a median of 61.1 minutes against 34.0 county-wide, the mark of a through route.

Freight stands out on SD 45: trucks are 20.4% of the traffic there, against 9.6% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
17th StreetPrimary road · 2,881vehicles261trucks · 9.1%
Road class
Primary road
Median trip time
30.3 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$74,050

The busiest stretch of 7th Street carries 2.6 times the county average; trucks are 9.1% of it, below the county-wide 9.6%.

2Main StreetPrimary road · 2,492vehicles241trucks · 9.7%
Road class
Primary road
Median trip time
27.9 min
Drivers’ median age
50.4 yrs
Drivers’ average income
$73,982

On its busiest stretch, Main Street carries 2.2 times the county average; trucks are 9.7% of it, in line with the county-wide 9.6%.

3SD Highway 46Primary road · 2,289vehicles226trucks · 9.8%
Road class
Primary road
Median trip time
34.8 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$55,929

SD Highway 46 peaks at 2,289 vehicles a day, 2.0 times the county average; trucks are 9.8% of it, in line with the county-wide 9.6%.

4SD 46 / SD 50Primary road · 2,271vehicles204trucks · 9.0%
Road class
Primary road
Median trip time
40.4 min
Drivers’ median age
49.4 yrs
Drivers’ average income
$58,918

SD 46 / SD 50 carries 2.0 times the county average at its busiest, 204 of them trucks (9.0%, below the county-wide 9.6%).

5US 18Primary road · 1,363vehicles86trucks · 6.3%
Road class
Primary road
Median trip time
39.0 min
Drivers’ median age
50.6 yrs
Drivers’ average income
$59,730

At 22% more than the county average, US 18 draws drivers from neighborhoods averaging $59,730 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
17th StreetPrimary road · #1 by traffic2,881vehicles261trucks · 9.1%
2Main StreetPrimary road · #2 by traffic2,492vehicles241trucks · 9.7%
3SD Highway 46Primary road · #3 by traffic2,289vehicles226trucks · 9.8%
4SD 46 / SD 50Primary road · #4 by traffic2,271vehicles204trucks · 9.0%
5SD 45Primary road · 596vehicles122trucks · 20.4%
Road class
Primary road
Median trip time
61.1 min
Drivers’ median age
48.7 yrs
Drivers’ average income
$75,455

SD 45 is a quieter road: its busiest stretch carries 47% less than the county average; trucks are 20.4% of it, above the county-wide 9.6%.

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

Charles MixDepartment 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 Charles Mix County

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

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