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Traffic heat map of Greene County, Iowa: 259 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Elm Street and 220th Street

Greene County, Iowa Traffic Counts

Trips here are among the 5 longest of any county in Iowa. This page breaks down traffic in Greene County, Iowa across 259 miles of monitored roads split into 1,475 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 Greene County, Iowa

Traffic

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

vehicles per day905
Trucks

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

9.8%
Average travel time

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

41.5 min
Congestion ratio

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

11.2%
Drivers’ average age

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

50.0 yrs
Drivers’ average income

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

$65,713

The average monitored road in Greene County, Iowa carries 905 vehicles per day. Across its 259 miles of monitored roads, that adds up to 203,711 vehicle-miles traveled per day (≈74.4 million per year). About 1 in 10 vehicles is a truck, in line with Iowa (11.0%).

Quieter roads than 98% of counties in Iowa

At 905 vehicles per day, the average monitored road in Greene carries 70% less traffic than the state average of 3,042, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Greene accounts for about 0.2% of Iowa's statewide total of vehicle-miles. 98% of counties in Iowa see more traffic than Greene's 905 vehicles per day.

The average trip takes 41.5 minutes, 26% higher than the state level. On travel time, Greene runs longer than 97% of counties in Iowa.

Congestion here (11.2%) closely tracks the state level.

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 74% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 26% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +8% versus the annual average.
Lowest month:
January is the quietest month, with volumes -18% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Greene County, Iowa, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +8% in high season.

Greene County vs. Iowa Traffic Comparison

Of the four measures, average daily traffic per road differs most: Greene County runs 70% below the Iowa average. Its average travel time, by contrast, is 26% above.

MetricGreene CountyIowa averageDifference
Traffic9053,042-70.3%
Truck % (Total Traffic)9.8%11.0%-11.3%
Avg. Travel Time41.5 min33.0 min+25.7%

How Greene County compares

Greene County has the quietest roads among its nearby counties

Set against the average of the 4 areas nearest to it, Greene County carries 56.8% less traffic on a typical road and moves 33.6% of the total daily travel; it has the quietest roads of the five. Quiet roads and long journeys - a rural pattern, where the distance between destinations rather than the traffic on the way is what takes the time.

Greene 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
Greene County9059.8%203,71141.5 min11.2%
Guthrie County, Iowa1,5188.9%258,31833.1 minN/A
Carroll County, Iowa2,6538.6%534,91434.4 min3.4%
Boone County, Iowa2,0469.4%693,00735.3 min8.0%
Webster County, Iowa2,16710.3%942,09037.5 min10.5%
Iowa average3,04211.0%N/A33.0 min11.4%

Greene County ranked within Iowa

Average daily traffic volume places Greene County #97 of 99 in Iowa - the bottom quarter of the state.

Greene County ranked among 99 county-level areas in Iowa (1 = highest).
MeasureGreene CountyIowa rank
Traffic volume (AADT)905#97 of 99
Average travel time41.5 min#4 of 99
Average driver income$65,713#86 of 99
Average driver age50.0 yrs#54 of 99

Greene County ranks #4 of 99 on average travel time but #97 of 99 on average daily traffic volume. Some of the longest trips in Iowa on some of its emptiest roads - distance, not congestion, is what sets travel time here.

Busiest roads in Greene County, Iowa

On their busiest stretches, the three busiest roads in Greene County carry 3,032 vehicles a day on average, 3.4 times the typical road in the county (905).

Elm Street is the busiest road, at 3,735 vehicles a day, 219 of them trucks (5.9%). 220th Street carries the most trucks, 340 a day (10.5% of its traffic), although it ranks #2 for all traffic.

Few trucks use Grimmell Road: 3.1% of its traffic, under half the county's 9.8%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Elm StreetPrimary road · 3,735vehicles219trucks · 5.9%
Road class
Primary road
Median trip time
29.2 min
Drivers’ median age
52.2 yrs
Drivers’ average income
$60,584

Elm Street is a local road at heart: the median trip using it lasts 29.2 minutes, against 41.5 for the county.

2220th StreetPrimary road · 3,244vehicles340trucks · 10.5%
Road class
Primary road
Congestion ratio
11.2%
Median trip time
51.4 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$67,846

220th Street peaks at 3,244 vehicles a day, 3.6 times the county average; trucks are 10.5% of it, above the county-wide 9.8%.

3Grimmell RoadTertiary road · 2,117vehicles67trucks · 3.1%
Road class
Tertiary road
Median trip time
52.5 min
Drivers’ median age
54.5 yrs
Drivers’ average income
$59,067

Grimmell Road carries 2.3 times the county average at its busiest, 67 of them trucks (3.1%, below the county-wide 9.8%).

4N AvenuePrimary road · 1,612vehicles109trucks · 6.7%
Road class
Primary road
Median trip time
31.6 min
Drivers’ median age
53.1 yrs
Drivers’ average income
$66,873

N Avenue peaks at 1,612 vehicles a day, 78% more than the county average; trucks are 6.7% of it, below the county-wide 9.8%.

5Locust StreetPrimary road · 1,436vehicles179trucks · 12.5%
Road class
Primary road
Median trip time
37.9 min
Drivers’ median age
49.6 yrs
Drivers’ average income
$67,577

Locust Street carries 59% more than the county average at its busiest, 179 of them trucks (12.5%, above the county-wide 9.8%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1220th StreetPrimary road · #2 by traffic3,244vehicles340trucks · 10.5%
2Elm StreetPrimary road · #1 by traffic3,735vehicles219trucks · 5.9%
3Locust StreetPrimary road · #5 by traffic1,436vehicles179trucks · 12.5%
4E AvenuePrimary road · 1,328vehicles172trucks · 12.9%
Road class
Primary road
Median trip time
35.1 min
Drivers’ median age
50.6 yrs
Drivers’ average income
$67,948

E Avenue carries 47% more than the county average on its busiest stretch, where the median trip lasts 35.1 minutes.

5Apple RoadPrimary road · 1,161vehicles152trucks · 13.1%
Road class
Primary road
Median trip time
42.1 min
Drivers’ median age
45.0 yrs
Drivers’ average income
$65,054

At 28% more than the county average, Apple Road draws drivers from neighborhoods averaging $65,054 in household income.

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

GreeneDepartment 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 Greene County

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

Need segment-level traffic data?

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