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Traffic heat map of Rock County, Minnesota: 304 miles of roads shaded from blue (light) to red (heavy traffic), busiest on American Veterans Memorial Highway

Rock County, Minnesota Traffic Counts

How busy are the roads of Rock County, Minnesota? We measure 304 road miles, divided into 2,111 segments, with multi-sourced, cross-verified mobile and sensor data. About 1 in 7 vehicles here is a truck, against 1 in 12 across Minnesota. 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 Rock County, Minnesota

Traffic

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

vehicles per day1,579
Trucks

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

13.8%
Average travel time

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

35.5 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

5.8%
Drivers’ average age

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

47.3 yrs
Drivers’ average income

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

$72,838

The average monitored road in Rock County, Minnesota carries 1,579 vehicles per day. Across its 304 miles of monitored roads, that adds up to 561,573 vehicle-miles traveled per day (≈205 million per year). Freight weighs heavily here: trucks are 13.8% of traffic, against 8.1% across Minnesota.

Traffic 54% below the Minnesota average

Rock sees 54% lower average daily traffic volume than the state average (1,579 vehicles per day against 3,404), 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 0.4% of Minnesota's statewide total. Rock carries less traffic than 56% of counties in Minnesota.

At 35.5 minutes, the average travel time is 10% higher than the state level. Its average travel time of 35.5 minutes is longer than 64% of counties in Minnesota.

Congestion runs 46% lower than the state level, at a ratio of 5.8%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Rock County, Minnesota

Trafficvehicles per day4,752
Trucks17.3%
Average travel time47.1 min
Congestion ratio11.7%
Drivers’ average age45.6 yrs
Drivers’ average income$76,425

A little more than half of the driving in Rock County, Minnesota happens on highways: 62% of all vehicle-miles. The average highway carries 4,752 vehicles per day, 270% more than the average non-highway road in the same area, which carries 1,283 vehicles per day.

That comes from just 20% of the monitored road miles: 59 miles in 180 segments, carrying 346,715 vehicle-miles traveled per day (≈127 million per year).

54% of counties in Minnesota move less traffic on their highways.

Higher highway truck share than 92% of counties in Minnesota

The concentration of trucks on highways (17.3%) is 69% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

Rock's highway truck share (17.3%) is higher than 92% of counties in Minnesota. 80% of counties in Minnesota see fewer highway trucks per day than Rock's roughly 823.

non-highway traffic icon

Non-highway Traffic in Rock County, Minnesota

Trafficvehicles per day1,283
Trucks8.1%
Average travel time34.4 min
Congestion ratio5.2%
Drivers’ average age49.5 yrs
Drivers’ average income$70,865

A significant share of driving in Rock County, Minnesota, 38% of vehicle-miles, happens on local roads. The average non-highway road carries 1,283 vehicles per day.

Local roads make up 80% of the monitored road miles (245 miles in 1,931 segments) but carry less than their share of travel: 214,858 vehicle-miles traveled per day (≈78.4 million per year). About 1 in 12 vehicles on non-highway roads is a truck (8.1%).

Local congestion 47% below the Minnesota average

Compared to highways, non-highway routes see 54% fewer trucks by share.

The non-highway congestion ratio of 5.2% is 47% lower than the state level, suggesting more efficient local mobility than the state average.

Trip origins here have lower average income than 63% of counties in Minnesota. Rock's median driver age is lower than 63% of counties in Minnesota.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Rock County, Minnesota, the peak hour concentrates about 7% of the day's traffic.

Rock County vs. Minnesota Traffic Comparison

Rock County's biggest difference from the Minnesota average is its truck share, 71% above it. Its highway truck share is also 69% above.

MetricRock CountyMinnesota averageDifference
Traffic1,5793,404-53.6%
Truck % (Total Traffic)13.8%8.1%+70.6%
Truck % (Highway)17.3%10.3%+68.8%
Avg. Travel Time35.5 min32.2 min+10.0%

How Rock County compares

Rock County against nearby counties

Compared with its 4 closest neighbours, Rock County carries 37.9% less traffic on a typical road and moves 41.5% of the total daily travel; it has the second busiest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.

Rock County and the 4 nearest county-level areas by centroid distance, with the Minnesota average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Rock County1,57913.8%561,57335.5 min5.8%
Pipestone County, Minnesota1,50410.6%284,94840.4 min5.8%
Lyon County, Iowa1,3459.3%355,01637.6 min6.5%
Nobles County, Minnesota1,35213.5%892,93232.5 min7.1%
Minnehaha County, South Dakota5,9657.7%3,884,83431.4 min13.4%
Minnesota average3,4048.1%N/A32.2 min10.6%

Rock County ranked within Minnesota

Truck share on highways places Rock County #7 of 81 in Minnesota - the top quarter of the state.

Rock County ranked among 87 county-level areas in Minnesota (1 = highest); measures without data in every county rank a smaller field, down to 81.
MeasureRock CountyMinnesota rank
Traffic volume (AADT)1,579#49 of 87
Highway vehicle-miles per day346,715#38 of 81
Truck share on highways17.3%#7 of 81
Highway trucks per day823#17 of 81
Average travel time35.5 min#32 of 87
Average driver income$72,838#55 of 87
Average driver age47.3 yrs#55 of 87

Busiest roads in Rock County, Minnesota

On their busiest stretches, the three busiest roads in Rock County carry 11,472 vehicles a day on average, 7.3 times the typical road in the county (1,579).

American Veterans Memorial Highway is the busiest road, at 13,460 vehicles a day, 2,442 of them trucks (18.1%). I 90 is practically level with it at 13,324. It tops the truck ranking too, with the most trucks.

Railroad Avenue carries longer journeys than most roads here, with a median trip of 60.6 minutes against 35.5 county-wide.

Few trucks use Kniss Avenue: 5.6% of its traffic, under half the county's 13.8%.

Freight stands out on Railroad Avenue: trucks are 21.5% of the traffic there, against 13.8% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1American Veterans Memorial HighwayMotorway · 13,460vehicles2,442trucks · 18.1%
Road class
Motorway
Median trip time
43.2 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$79,378

At 8.5 times the county average, American Veterans Memorial Highway draws drivers from neighborhoods averaging $79,378 in household income.

2I 90Motorway · 13,324vehicles2,422trucks · 18.2%
Road class
Motorway
Congestion ratio
12.3%
Median trip time
46.8 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$77,028

A main artery: I 90's busiest stretch carries 8.4 times the county average; trucks are 18.2% of it, above the county-wide 13.8%.

3Kniss AvenuePrimary road · 7,631vehicles426trucks · 5.6%
Road class
Primary road
Congestion ratio
12.4%
Median trip time
34.2 min
Drivers’ median age
49.7 yrs
Drivers’ average income
$73,835

Kniss Avenue carries 4.8 times the county average on its busiest stretch, where the median trip lasts 34.2 minutes.

4MN 23 / County Road 7Trunk road · 4,468vehicles550trucks · 12.3%
Road class
Trunk road
Median trip time
57.8 min
Drivers’ median age
50.7 yrs
Drivers’ average income
$71,810

Drivers on MN 23 / County Road 7 are on long journeys, a median 57.8 minutes against 35.5 county-wide: a through route more than a local street.

5MN 23Trunk road · 4,039vehicles540trucks · 13.4%
Road class
Trunk road
Congestion ratio
11.2%
Median trip time
52.8 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$70,674

MN 23 carries through traffic: the median trip using it lasts 52.8 minutes, against 35.5 for the county.

Ranked by trucks per day

Cars and light vehiclesTrucks
1American Veterans Memorial HighwayMotorway · #1 by traffic13,460vehicles2,442trucks · 18.1%
2I 90Motorway · #2 by traffic13,324vehicles2,422trucks · 18.2%
3Railroad AvenueTrunk road · 2,633vehicles566trucks · 21.5%
Road class
Trunk road
Median trip time
60.6 min
Drivers’ median age
49.5 yrs
Drivers’ average income
$69,879

Railroad Avenue carries 67% more than the county average on its busiest stretch, where the median trip lasts 60.6 minutes.

4MN 23 / County Road 7Trunk road · #4 by traffic4,468vehicles550trucks · 12.3%
5MN 23Trunk road · #5 by traffic4,039vehicles540trucks · 13.4%
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

RockDepartment 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 Rock County

The same traffic breakdown for the areas closest to Rock County, Minnesota.

Need segment-level traffic data?

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