Need segment-level traffic data?

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

Get insights →
Traffic heat map of Hancock County, Iowa: 280 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 18 and Sage Avenue

Hancock County, Iowa Traffic Counts

How busy are the roads of Hancock County, Iowa? We measure 280 road miles, divided into 2,372 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, US 18, carries 6,377 vehicles a day, 6.2 times the average road. 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
Find my place
total traffic icon

Total Traffic Volume & Performance in Hancock County, Iowa

Traffic

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

vehicles per day1,029
Trucks

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

9.2%
Average travel time

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

36.4 min
Congestion ratio

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

5.6%
Drivers’ average age

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

52.7 yrs
Drivers’ average income

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

$71,299

Our data shows 1,029 vehicles per day on the average road in Hancock County, Iowa, and 275,799 vehicle-miles traveled per day (≈101 million per year) across its 280 miles of monitored roads. About 1 in 11 vehicles is a truck, fewer than the 1 in 9 across Iowa.

Quieter roads than 92% of counties in Iowa

Hancock sees 66% lower average daily traffic volume than the state average (1,029 vehicles per day against 3,042), 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 0.3% of Iowa's statewide total. By volume, Hancock's 1,029 vehicles per day trails 92% of counties in Iowa.

At 36.4 minutes, the average travel time is 10% higher than the state level. Its average travel time of 36.4 minutes is longer than 79% of counties in Iowa.

Congestion runs 51% lower than the state level, at a ratio of 5.6%, which means smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Hancock County, Iowa, the peak hour concentrates about 8% of the day's traffic.

Hancock County vs. Iowa Traffic Comparison

Of the four measures, average daily traffic per road differs most: Hancock County runs 66% below the Iowa average. Its truck share is also 17% below.

MetricHancock CountyIowa averageDifference
Traffic1,0293,042-66.2%
Truck % (Total Traffic)9.2%11.0%-16.8%
Avg. Travel Time36.4 min33.0 min+10.2%

How Hancock County compares

Hancock County against nearby counties

Set against the average of the 4 areas nearest to it, Hancock County carries 36.6% less traffic on a typical road and moves 49.4% of the total daily travel; it has the fourth busiest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Hancock County and the 4 nearest county-level areas by centroid distance, with the Iowa average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Hancock County1,0299.2%275,79936.4 min5.6%
Winnebago County, Iowa1,3228.9%198,50029.9 min6.1%
Wright County, Iowa1,36315.0%395,88334.9 min5.7%
Kossuth County, Iowa97010.6%377,96139.7 min5.3%
Cerro Gordo County, Iowa2,83613.1%1,261,56135.3 min8.9%
Iowa average3,04211.0%N/A33.0 min11.4%

Hancock County ranked within Iowa

Average driver age places Hancock County #8 of 99 in Iowa - the top quarter of the state.

Hancock County ranked among 99 county-level areas in Iowa (1 = highest).
MeasureHancock CountyIowa rank
Traffic volume (AADT)1,029#91 of 99
Average travel time36.4 min#22 of 99
Average driver income$71,299#55 of 99
Average driver age52.7 yrs#8 of 99

Hancock County ranks #8 of 99 on average driver age but #91 of 99 on average daily traffic volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Hancock County, Iowa

On their busiest stretches, the three busiest roads in Hancock County carry 4,179 vehicles a day on average, 4.1 times the typical road in the county (1,029).

US 18 is the busiest road, at 6,377 vehicles a day, 601 of them trucks (9.4%). That is 2.0 times the next road, Sage Avenue (3,266). It tops the truck ranking too, with the most trucks.

Trips using 230th Street are long: a median of 49.6 minutes against 36.4 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 18Primary road · 6,377vehicles601trucks · 9.4%
Road class
Primary road
Congestion ratio
15.0%
Median trip time
42.2 min
Drivers’ median age
53.8 yrs
Drivers’ average income
$74,195

Travel on US 18's busiest stretch runs 15% over free-flow time, against 6% across the county, so expect slower peak hours.

2Sage AvenuePrimary road · 3,266vehicles313trucks · 9.6%
Road class
Primary road
Congestion ratio
7.5%
Median trip time
27.5 min
Drivers’ median age
53.7 yrs
Drivers’ average income
$73,348

At 3.2 times the county average, Sage Avenue draws drivers from neighborhoods averaging $73,348 in household income.

3State StreetTertiary road · 2,893vehicles213trucks · 7.3%
Road class
Tertiary road
Congestion ratio
5.6%
Median trip time
29.5 min
Drivers’ median age
55.8 yrs
Drivers’ average income
$70,957

The busiest stretch of State Street carries 2.8 times the county average; trucks are 7.3% of it, below the county-wide 9.2%.

4US 69Primary road · 2,568vehicles267trucks · 10.4%
Road class
Primary road
Congestion ratio
5.4%
Median trip time
34.8 min
Drivers’ median age
50.9 yrs
Drivers’ average income
$72,828

On its busiest stretch, US 69 carries 2.5 times the county average; trucks are 10.4% of it, above the county-wide 9.2%.

5230th StreetPrimary road · 2,556vehicles317trucks · 12.4%
Road class
Primary road
Congestion ratio
6.1%
Median trip time
49.6 min
Drivers’ median age
53.5 yrs
Drivers’ average income
$74,764

230th Street peaks at 2,556 vehicles a day, 2.5 times the county average; trucks are 12.4% of it, above the county-wide 9.2%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 18Primary road · #1 by traffic6,377vehicles601trucks · 9.4%
2230th StreetPrimary road · #5 by traffic2,556vehicles317trucks · 12.4%
3Sage AvenuePrimary road · #2 by traffic3,266vehicles313trucks · 9.6%
4US 69Primary road · #4 by traffic2,568vehicles267trucks · 10.4%
5State StreetTertiary road · #3 by traffic2,893vehicles213trucks · 7.3%
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

HancockDepartment 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.
link arrow icon
Data current as of:
Q3 2026

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

Counties near Hancock County

The same traffic breakdown for the areas closest to Hancock County, Iowa.

Need segment-level traffic data?

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