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Traffic heat map of Jefferson County, Wisconsin: 566 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 94 and Church Street

Jefferson County, Wisconsin Traffic Counts

Its busiest road, I 94, carries 36,918 vehicles a day, 12.5 times the average road. This page breaks down traffic in Jefferson County, Wisconsin across 566 miles of monitored roads split into 8,909 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
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 Jefferson County, Wisconsin

Traffic

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

vehicles per day2,946
Trucks

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

11.4%
Average travel time

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

31.9 min
Congestion ratio

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

8.6%
Drivers’ average age

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

48.1 yrs
Drivers’ average income

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

$88,757

A typical monitored road in Jefferson County, Wisconsin sees 2,946 vehicles per day, while its 566 miles of monitored roads together handle 2,336,220 vehicle-miles traveled per day (≈853 million per year). About 1 in 9 vehicles is a truck, in line with Wisconsin (10.2%).

Busier roads than 68% of counties in Wisconsin

Jefferson's average daily traffic volume is 23% lower than the state average - 2,946 vehicles per day against 3,802 - suggesting less traffic load per road - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 1.8% of Wisconsin's statewide total of vehicle-miles. 68% of counties in Wisconsin see less traffic than Jefferson's 2,946 vehicles per day.

The average trip takes 31.9 minutes, on par with the state level. On travel time, Jefferson runs shorter than 63% of counties in Wisconsin.

At 31% lower than the state level, the 8.6% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Jefferson County, Wisconsin

Trafficvehicles per day9,371
Trucks14.9%
Average travel time51.4 min
Congestion ratio24.4%
Drivers’ average age48.5 yrs
Drivers’ average income$94,168

A little more than half of the driving in Jefferson County, Wisconsin happens on highways: 59% of all vehicle-miles. The average highway carries 9,371 vehicles per day, 253% more than the average non-highway road in the same area, which carries 2,654 vehicles per day.

Highways make up 22% of the monitored road miles (123 miles, 387 segments), so they carry more than their share: 1,373,952 vehicle-miles traveled per day (≈501 million per year).

By highway travel volume, Jefferson outranks 81% of counties in Wisconsin.

More highway trucks than 65% of counties in Wisconsin

The concentration of trucks on highways (14.9%) is in line with the state average for similar road classifications. The highway traffic mix is typical for Wisconsin: neither freight- nor commuter-dominated.

By truck concentration, highways here outrank 61% of counties in Wisconsin. Jefferson's highway truck count is higher than 65% of counties in Wisconsin, at roughly 1,395 trucks per day.

non-highway traffic icon

Non-highway Traffic in Jefferson County, Wisconsin

Trafficvehicles per day2,654
Trucks6.4%
Average travel time31.0 min
Congestion ratio7.9%
Drivers’ average age47.6 yrs
Drivers’ average income$85,331

Local roads carry a significant share of travel in Jefferson County, Wisconsin: 41% of all vehicle-miles. The average non-highway road carries 2,654 vehicles per day.

Local roads make up 78% of the monitored road miles (443 miles in 8,522 segments) but carry less than their share of travel: 962,268 vehicle-miles traveled per day (≈351 million per year). The truck share on non-highway roads is 6.4%.

Drivers from higher-income areas than 89% of counties in Wisconsin

The concentration of trucks on non-highway roads is 57% lower than on highways.

Non-highway congestion (7.9%) runs 35% lower than the state average, pointing to smoother local traffic flow.

Trip origins here have higher average income than 89% of counties in Wisconsin. Jefferson's median driver age is lower than 73% of counties in Wisconsin.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 79% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 11% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +10% versus the annual average.
Lowest month:
January is the quietest month, with volumes -16% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Jefferson County, Wisconsin, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +10% in high season.

Jefferson County vs. Wisconsin Traffic Comparison

The average daily traffic per road sets Jefferson County apart: 23% below the Wisconsin average.

MetricJefferson CountyWisconsin averageDifference
Traffic2,9463,802-22.5%
Truck % (Total Traffic)11.4%10.2%+12.1%
Truck % (Highway)14.9%14.7%+1.3%
Avg. Travel Time31.9 min32.2 min-0.9%

How Jefferson County compares

Jefferson County has a higher truck share than any nearby county

Against the 4 nearest areas, Jefferson County is 30.1% less congested; it has the fourth 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.

Jefferson County and the 4 nearest county-level areas by centroid distance, with the Wisconsin average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Jefferson County2,94611.4%2,336,22031.9 min8.6%
Dodge County, Wisconsin2,41810.2%2,319,15738.0 min8.3%
Waukesha County, Wisconsin5,7147.1%9,163,29530.5 min17.3%
Walworth County, Wisconsin3,3349.6%2,511,83232.4 min10.6%
Washington County, Wisconsin4,5138.9%3,229,13129.9 min13.1%
Wisconsin average3,80210.2%N/A32.2 min12.6%

Jefferson County ranked within Wisconsin

Average driver income places Jefferson County #9 of 72 in Wisconsin - the top quarter of the state.

Jefferson County ranked among 72 county-level areas in Wisconsin (1 = highest); measures without data in every county rank a smaller field, down to 58.
MeasureJefferson CountyWisconsin rank
Traffic volume (AADT)2,946#24 of 72
Highway vehicle-miles per day1,373,952#12 of 58
Truck share on highways14.9%#23 of 58
Highway trucks per day1,395#21 of 58
Average travel time31.9 min#46 of 72
Average driver income$88,757#9 of 72
Average driver age48.1 yrs#53 of 72

Busiest roads in Jefferson County, Wisconsin

The three busiest roads in Jefferson County average 24,883 vehicles a day, 8.4 times the county average of 2,946 across all its monitored roads.

I 94 is the busiest road, at 36,918 vehicles a day, 6,225 of them trucks (16.9%). No other road comes close: Church Street, in second place, carries 20,688. It also carries the most trucks.

I 94 carries longer journeys than most roads here, with a median trip of 54.8 minutes against 31.9 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 94Motorway · 36,918vehicles6,225trucks · 16.9%
Road class
Motorway
Congestion ratio
32.9%
Median trip time
54.8 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$104,715

I 94 carries 12.5 times the county average on its busiest stretch, where the median trip lasts 54.8 minutes.

2Church StreetTrunk road · 20,688vehicles2,167trucks · 10.5%
Road class
Trunk road
Congestion ratio
37.9%
Median trip time
44.4 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$88,320

Church Street is one of the more congested roads here: trips take 38% longer than at free-flow speed, against 9% county-wide.

3WI 26Trunk road · 17,042vehicles1,641trucks · 9.6%
Road class
Trunk road
Congestion ratio
34.0%
Median trip time
41.1 min
Drivers’ median age
48.7 yrs
Drivers’ average income
$83,514

Delays build on WI 26: its congestion ratio of 34% over free-flow time is well above the county's 9%.

4Jefferson BypassMotorway · 13,262vehicles1,779trucks · 13.4%
Road class
Motorway
Congestion ratio
13.5%
Median trip time
43.0 min
Drivers’ median age
49.0 yrs
Drivers’ average income
$84,665

Jefferson Bypass carries through traffic: the median trip using it lasts 43.0 minutes, against 31.9 for the county.

5Main StreetPrimary road · 12,039vehicles698trucks · 5.8%
Road class
Primary road
Congestion ratio
29.2%
Median trip time
36.8 min
Drivers’ median age
49.2 yrs
Drivers’ average income
$73,356

The busiest stretch of Main Street carries 4.1 times the county average; trucks are 5.8% of it, below the county-wide 11.4%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 94Motorway · #1 by traffic36,918vehicles6,225trucks · 16.9%
2Church StreetTrunk road · #2 by traffic20,688vehicles2,167trucks · 10.5%
3Jefferson BypassMotorway · #4 by traffic13,262vehicles1,779trucks · 13.4%
4WI 26Trunk road · #3 by traffic17,042vehicles1,641trucks · 9.6%
5WI 16Trunk road · 7,579vehicles741trucks · 9.8%
Road class
Trunk road
Congestion ratio
18.8%
Median trip time
31.2 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$87,020

On its busiest stretch, WI 16 carries 2.6 times the county average; trucks are 9.8% of it, below the county-wide 11.4%.

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

JeffersonDepartment 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 Jefferson County

The same traffic breakdown for the areas closest to Jefferson County, Wisconsin.

Need segment-level traffic data?

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