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Traffic heat map of Codington County, South Dakota: 336 miles of roads shaded from blue (light) to red (heavy traffic), busiest on 3rd Avenue Northwest

Codington County, South Dakota Traffic Counts

Traffic analytics for Codington County, South Dakota, calculated from real-world mobile and sensor networks on 3,036 road segments (336 road miles, about 585 ft each). It ranks among the top 5 counties in South Dakota for average daily traffic. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Codington County, South Dakota

Traffic

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

vehicles per day5,166
Trucks

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

7.5%
Average travel time

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

33.9 min
Drivers’ average age

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

47.9 yrs
Drivers’ average income

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

$70,238

The average monitored road in Codington County, South Dakota carries 5,166 vehicles per day. Across its 336 miles of monitored roads, that adds up to 858,244 vehicle-miles traveled per day (≈313 million per year). About 1 in 13 vehicles is a truck, fewer than the 1 in 10 across South Dakota.

Busier roads than 95% of counties in South Dakota

Codington's average daily traffic volume is 64% higher than the state average - 5,166 vehicles per day against 3,156 - suggesting more traffic load per road - heavy exposure for roadside retail, and tight road space for deliveries. In total volume terms, its road network carries about 3.5% of South Dakota's statewide total of vehicle-miles. By volume, Codington's 5,166 vehicles per day outpaces 95% of counties in South Dakota.

The average trip takes 33.9 minutes, on par with the state level. On travel time, Codington runs shorter than 69% of counties in South Dakota.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Codington County, South Dakota

Trafficvehicles per day2,986
Trucks14.1%
Average travel time45.7 min
Drivers’ average age48.1 yrs
Drivers’ average income$72,362

Highways carry a smaller share of travel in Codington County, South Dakota, 21% of vehicle-miles; most driving happens on local roads. The average highway carries 2,986 vehicles per day, 43% less than the average non-highway road in the same area, which carries 5,212 vehicles per day.

With 16% of the road miles (55 miles in 64 segments), highways punch above their length, carrying 184,236 vehicle-miles traveled per day (≈67.2 million per year).

That is more highway travel volume than 56% of counties in South Dakota.

More highway trucks than 65% of counties in South Dakota

The concentration of trucks on highways (14.1%) is in line with the state average for similar road classifications. The highway traffic mix is typical for South Dakota: neither freight- nor commuter-dominated.

Codington's highway truck share (14.1%) is higher than 52% of counties in South Dakota. Codington's highway truck count is higher than 65% of counties in South Dakota, at roughly 422 trucks per day.

non-highway traffic icon

Non-highway Traffic in Codington County, South Dakota

Trafficvehicles per day5,212
Trucks5.7%
Average travel time33.6 min
Drivers’ average age47.9 yrs
Drivers’ average income$70,038

Most travel in Codington County, South Dakota happens on local roads, 79% of all vehicle-miles. The average non-highway road carries 5,212 vehicles per day.

Their share of road miles is similar, 84% (281 miles in 2,972 segments), carrying 674,008 vehicle-miles traveled per day (≈246 million per year). About 1 in 18 vehicles on non-highway roads is a truck (5.7%).

Younger drivers than 72% of counties in South Dakota

Compared to highways, non-highway routes see 60% fewer trucks by share.

Trip origins here have lower average income than 57% of counties in South Dakota. 72% of counties in South Dakota have an older driver population than Codington.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 7:00 AM to 12:00 PM and PM peak 4:00 PM–7:00 PM, with volumes reaching approximately 62% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 13% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +13% versus the annual average.
Lowest month:
March is the quietest month, with volumes -21% versus the annual average.

Data Finding: Hourly & Seasonal Patterns

In Codington County, South Dakota, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +13% in high season.

Codington County vs. South Dakota Traffic Comparison

Codington County's biggest difference from the South Dakota average is its average daily traffic per road, 64% above it. Its truck share, by contrast, is 27% below.

MetricCodington CountySouth Dakota averageDifference
Traffic5,1663,156+63.7%
Truck % (Total Traffic)7.5%10.3%-26.9%
Truck % (Highway)14.1%13.6%+4.0%
Avg. Travel Time33.9 min32.5 min+4.4%

How Codington County compares

Codington County moves more traffic than any nearby county

Against the 4 nearest areas, Codington County carries 311.0% more traffic on a typical road and moves 4.7 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.

Codington 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
Codington County5,1667.5%858,24433.9 minN/A
Grant County, South Dakota2,28511.2%218,62231.3 minN/A
Hamlin County, South Dakota1,01710.2%198,30634.6 minN/A
Clark County, South Dakota7759.4%107,86548.3 minN/A
Day County, South Dakota95111.2%204,38542.5 minN/A
South Dakota average3,15610.3%N/A32.5 min12.9%

Codington County ranked within South Dakota

Average daily traffic volume places Codington County #4 of 66 in South Dakota - the top quarter of the state.

Codington 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.
MeasureCodington CountySouth Dakota rank
Traffic volume (AADT)5,166#4 of 66
Highway vehicle-miles per day184,236#22 of 49
Truck share on highways14.1%#24 of 49
Highway trucks per day422#18 of 49
Average travel time33.9 min#46 of 66
Average driver income$70,238#38 of 66
Average driver age47.9 yrs#48 of 66

Busiest roads in Codington County, South Dakota

Traffic concentrates on a few corridors: the three busiest roads average 25,029 vehicles a day, against 5,166 on the average road in Codington County.

3rd Avenue Northwest is the busiest road, at 28,877 vehicles a day, 1,023 of them trucks (3.5%). It also carries the most trucks.

Trucks make up 14.2% of traffic on I 29, against 7.5% across all roads in the county.

I 29 carries longer journeys than most roads here, with a median trip of 47.5 minutes against 33.9 county-wide.

3rd Street Northwest is busy with cars rather than freight: only 2.7% of its traffic is trucks, against 7.5% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
13rd Avenue NorthwestSecondary road · 28,877vehicles1,023trucks · 3.5%
Road class
Secondary road
Median trip time
44.4 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$62,209

3rd Avenue Northwest carries through traffic: the median trip using it lasts 44.4 minutes, against 33.9 for the county.

23rd Avenue NortheastSecondary road · 24,006vehicles704trucks · 2.9%
Road class
Secondary road
Median trip time
39.5 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$62,682

The busiest stretch of 3rd Avenue Northeast carries 4.6 times the county average; trucks are 2.9% of it, below the county-wide 7.5%.

33rd Street NorthwestTertiary road · 22,204vehicles601trucks · 2.7%
Road class
Tertiary road
Median trip time
45.6 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$56,667

Drivers on 3rd Street Northwest are on long journeys, a median 45.6 minutes against 33.9 county-wide: a through route more than a local street.

45th Street NortheastPrimary road · 19,135vehicles684trucks · 3.6%
Road class
Primary road
Median trip time
32.1 min
Drivers’ median age
47.8 yrs
Drivers’ average income
$67,401

On its busiest stretch, 5th Street Northeast carries 3.7 times the county average; trucks are 3.6% of it, below the county-wide 7.5%.

59th Avenue SoutheastPrimary road · 17,352vehicles941trucks · 5.4%
Road class
Primary road
Median trip time
33.7 min
Drivers’ median age
48.2 yrs
Drivers’ average income
$67,892

9th Avenue Southeast peaks at 17,352 vehicles a day, 3.4 times the county average; trucks are 5.4% of it, below the county-wide 7.5%.

Ranked by trucks per day

Cars and light vehiclesTrucks
13rd Avenue NorthwestSecondary road · #1 by traffic28,877vehicles1,023trucks · 3.5%
210th Street SouthwestPrimary road · 14,816vehicles996trucks · 6.7%
Road class
Primary road
Median trip time
32.8 min
Drivers’ median age
47.8 yrs
Drivers’ average income
$67,250

10th Street Southwest carries 2.9 times the county average at its busiest, 996 of them trucks (6.7%, below the county-wide 7.5%).

3I 29Motorway · 6,688vehicles948trucks · 14.2%
Road class
Motorway
Median trip time
47.5 min
Drivers’ median age
48.8 yrs
Drivers’ average income
$72,538

I 29 is busy by local standards, at 29% more than the county average on its busiest stretch; trucks are 14.2% of it, above the county-wide 7.5%.

49th Avenue SoutheastPrimary road · #5 by traffic17,352vehicles941trucks · 5.4%
510th Street NorthwestPrimary road · 15,731vehicles869trucks · 5.5%
Road class
Primary road
Median trip time
28.2 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$69,342

10th Street Northwest carries 3.0 times the county average on its busiest stretch, where the median trip lasts 28.2 minutes.

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

CodingtonDepartment 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 Codington County

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

Need segment-level traffic data?

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