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Traffic heat map of Winneshiek County, Iowa: 317 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Montgomery Street and Water Street

Winneshiek County, Iowa Traffic Counts

TrafficZoom tracks traffic on 317 road miles in Winneshiek County, Iowa, divided into 3,608 segments averaging 464 ft. Its busiest road, Montgomery Street, carries 9,953 vehicles a day, 5.6 times the average road. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
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 Winneshiek County, Iowa

Traffic

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

vehicles per day1,771
Trucks

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

9.7%
Average travel time

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

31.0 min
Congestion ratio

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

8.1%
Drivers’ average age

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

50.6 yrs
Drivers’ average income

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

$79,357

The average monitored road in Winneshiek County, Iowa carries 1,771 vehicles per day. Across its 317 miles of monitored roads, that adds up to 452,595 vehicle-miles traveled per day (≈165 million per year). About 1 in 10 vehicles is a truck, in line with Iowa (11.0%).

Shorter trips than 85% of counties in Iowa

Winneshiek sees 42% lower average daily traffic volume than the state average (1,771 vehicles per day against 3,042), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. In total volume terms, its road network carries about 0.5% of Iowa's statewide total of vehicle-miles. By volume, Winneshiek's 1,771 vehicles per day outpaces 53% of counties in Iowa.

At 31.0 minutes, the average travel time is 6% lower than the state level. On travel time, Winneshiek runs shorter than 85% of counties in Iowa.

At 29% lower than the state level, the 8.1% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Winneshiek County vs. Iowa Traffic Comparison

The average daily traffic per road sets Winneshiek County apart: 42% below the Iowa average.

MetricWinneshiek CountyIowa averageDifference
Traffic1,7713,042-41.8%
Truck % (Total Traffic)9.7%11.0%-12.3%
Avg. Travel Time31.0 min33.0 min-5.9%

How Winneshiek County compares

Winneshiek County against nearby counties

Winneshiek County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though 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.

Winneshiek 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
Winneshiek County1,7719.7%452,59531.0 min8.1%
Howard County, Iowa1,24212.3%198,06233.6 min5.8%
Fillmore County, Minnesota1,51510.3%534,40033.1 min5.7%
Allamakee County, Iowa1,5188.9%273,72733.3 min6.8%
Houston County, Minnesota1,6109.6%354,55931.8 min8.0%
Iowa average3,04211.0%N/A33.0 min11.4%

Winneshiek County ranked within Iowa

Average travel time places Winneshiek County #84 of 99 in Iowa - the bottom quarter of the state.

Winneshiek County ranked among 99 county-level areas in Iowa (1 = highest).
MeasureWinneshiek CountyIowa rank
Traffic volume (AADT)1,771#47 of 99
Average travel time31.0 min#84 of 99
Average driver income$79,357#27 of 99
Average driver age50.6 yrs#46 of 99

Busiest roads in Winneshiek County, Iowa

Traffic concentrates on a few corridors: the three busiest roads average 8,369 vehicles a day, against 1,771 on the average road in Winneshiek County.

Montgomery Street is the busiest road, at 9,953 vehicles a day, 843 of them trucks (8.5%). It tops the truck ranking too, with the most trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Montgomery StreetSecondary road · 9,953vehicles843trucks · 8.5%
Road class
Secondary road
Congestion ratio
19.1%
Median trip time
25.2 min
Drivers’ median age
50.5 yrs
Drivers’ average income
$80,067

Montgomery Street is one of the more congested roads here: trips take 19% longer than at free-flow speed, against 8% county-wide.

2Water StreetSecondary road · 8,387vehicles707trucks · 8.4%
Road class
Secondary road
Median trip time
34.1 min
Drivers’ median age
49.7 yrs
Drivers’ average income
$71,239

Water Street peaks at 8,387 vehicles a day, 4.7 times the county average; trucks are 8.4% of it, below the county-wide 9.7%.

3Mechanic StreetSecondary road · 6,768vehicles578trucks · 8.5%
Road class
Secondary road
Congestion ratio
22.6%
Median trip time
32.9 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$74,777

Delays build on Mechanic Street: its congestion ratio of 23% over free-flow time is well above the county's 8%.

4Short StreetSecondary road · 6,408vehicles611trucks · 9.5%
Road class
Secondary road
Median trip time
30.9 min
Drivers’ median age
50.5 yrs
Drivers’ average income
$75,493

Short Street carries 3.6 times the county average at its busiest, 611 of them trucks (9.5%, in line with the county-wide 9.7%).

5IA 9Primary road · 5,263vehicles509trucks · 9.7%
Road class
Primary road
Congestion ratio
11.6%
Median trip time
29.1 min
Drivers’ median age
51.2 yrs
Drivers’ average income
$79,027

IA 9 carries 3.0 times the county average on its busiest stretch, where the median trip lasts 29.1 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Montgomery StreetSecondary road · #1 by traffic9,953vehicles843trucks · 8.5%
2Water StreetSecondary road · #2 by traffic8,387vehicles707trucks · 8.4%
3Short StreetSecondary road · #4 by traffic6,408vehicles611trucks · 9.5%
4Mechanic StreetSecondary road · #3 by traffic6,768vehicles578trucks · 8.5%
5IA 9Primary road · #5 by traffic5,263vehicles509trucks · 9.7%
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

WinneshiekDepartment 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 Winneshiek County

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

Need segment-level traffic data?

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