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Traffic heat map of Harper County, Kansas: 134 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Ll & G Avenue and KS 2

Harper County, Kansas Traffic Counts

Our Harper County, Kansas traffic data covers 1,278 road segments over 134 road miles, with an average segment of just 553 ft. Its busiest road, Ll & G Avenue, carries 3,822 vehicles a day, 3.5 times the average road. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
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 Harper County, Kansas

Traffic

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

vehicles per day1,077
Trucks

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

9.0%
Average travel time

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

34.9 min
Drivers’ average age

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

51.0 yrs
Drivers’ average income

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

$56,770

A typical monitored road in Harper County, Kansas sees 1,077 vehicles per day, while its 134 miles of monitored roads together handle 120,465 vehicle-miles traveled per day (≈44.0 million per year). Trucks are 9.0% of traffic, close to the 10.2% across Kansas.

Quieter roads than 88% of counties in Kansas

Harper's average daily traffic volume is 75% lower than the state average - 1,077 vehicles per day against 4,243 - 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 Kansas's statewide total. 88% of counties in Kansas see more traffic than Harper's 1,077 vehicles per day.

Journey times run 10% higher than the state level, at 34.9 minutes on average. Its average travel time of 34.9 minutes is longer than 55% of counties in Kansas.

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 69% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 25% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +4% versus the annual average.
Lowest month:
January is the quietest month, with volumes -8% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Harper County, Kansas, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.

Harper County vs. Kansas Traffic Comparison

Of the four measures, average daily traffic per road differs most: Harper County runs 75% below the Kansas average.

MetricHarper CountyKansas averageDifference
Traffic1,0774,243-74.6%
Truck % (Total Traffic)9.0%10.2%-12.2%
Avg. Travel Time34.9 min31.8 min+9.9%

How Harper County compares

Harper County against nearby counties

Nothing in this table sets Harper County sharply apart from the 4 areas nearest to it, though it has the fourth busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Harper County and the 4 nearest county-level areas by centroid distance, with the Kansas average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Harper County1,0779.0%120,46534.9 minN/A
Kingman County, Kansas1,58414.4%381,57133.3 minN/A
Alfalfa County, Oklahoma1,0159.1%188,23939.8 min3.7%
Grant County, Oklahoma1,11910.7%182,50642.9 min4.1%
Barber County, Kansas1,1329.1%115,78439.2 minN/A
Kansas average4,24310.2%N/A31.8 min17.1%

Harper County ranked within Kansas

Harper County sits in the bottom quarter of the Kansas field on average driver income, at #94 of 105.

Harper County ranked among 105 county-level areas in Kansas (1 = highest).
MeasureHarper CountyKansas rank
Traffic volume (AADT)1,077#92 of 105
Average travel time34.9 min#48 of 105
Average driver income$56,770#94 of 105
Average driver age51.0 yrs#28 of 105

The two ends of this table sit far apart: #28 of 105 on average driver age, against #94 of 105 on average driver income.

Busiest roads in Harper County, Kansas

On their busiest stretches, the three busiest roads in Harper County carry 3,342 vehicles a day on average, 3.1 times the typical road in the county (1,077).

Ll & G Avenue is the busiest road, at 3,822 vehicles a day, 217 of them trucks (5.7%). 14th Street carries the most trucks, 357 a day (11.7% of its traffic), although it ranks #4 for all traffic.

Avenue C is a local road at heart: the median trip using it lasts 23.8 minutes, against 34.9 for the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Ll & G AvenueSecondary road · 3,822vehicles217trucks · 5.7%
Road class
Secondary road
Median trip time
31.3 min
Drivers’ median age
51.1 yrs
Drivers’ average income
$55,905

The busiest stretch of Ll & G Avenue carries 3.5 times the county average; trucks are 5.7% of it, below the county-wide 9.0%.

2KS 2Secondary road · 3,109vehicles236trucks · 7.6%
Road class
Secondary road
Median trip time
28.8 min
Drivers’ median age
50.9 yrs
Drivers’ average income
$57,503

On its busiest stretch, KS 2 carries 2.9 times the county average; trucks are 7.6% of it, below the county-wide 9.0%.

3US 160Primary road · 3,094vehicles292trucks · 9.4%
Road class
Primary road
Median trip time
34.2 min
Drivers’ median age
50.9 yrs
Drivers’ average income
$59,336

US 160 peaks at 3,094 vehicles a day, 2.9 times the county average; trucks are 9.4% of it, above the county-wide 9.0%.

414th StreetPrimary road · 3,047vehicles357trucks · 11.7%
Road class
Primary road
Median trip time
40.1 min
Drivers’ median age
50.9 yrs
Drivers’ average income
$59,940

14th Street carries 2.8 times the county average at its busiest, 357 of them trucks (11.7%, above the county-wide 9.0%).

5Main StreetSecondary road · 2,740vehicles146trucks · 5.3%
Road class
Secondary road
Median trip time
29.5 min
Drivers’ median age
51.5 yrs
Drivers’ average income
$54,450

Main Street carries 2.5 times the county average on its busiest stretch, where the median trip lasts 29.5 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
114th StreetPrimary road · #4 by traffic3,047vehicles357trucks · 11.7%
2US 160Primary road · #3 by traffic3,094vehicles292trucks · 9.4%
3KS 2Secondary road · #2 by traffic3,109vehicles236trucks · 7.6%
4Ll & G AvenueSecondary road · #1 by traffic3,822vehicles217trucks · 5.7%
5Avenue CPrimary road · 1,636vehicles216trucks · 13.2%
Road class
Primary road
Median trip time
23.8 min
Drivers’ median age
51.7 yrs
Drivers’ average income
$45,344

Avenue C is busy by local standards, at 52% more than the county average on its busiest stretch; trucks are 13.2% of it, above the county-wide 9.0%.

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

HarperDepartment 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 Harper County

The same traffic breakdown for the areas closest to Harper County, Kansas.

Need segment-level traffic data?

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