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Traffic heat map of Ida County, Iowa: 185 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 20 and 160th Street

Ida County, Iowa Traffic Counts

Traffic analytics for Ida County, Iowa, calculated from real-world mobile and sensor networks on 1,405 road segments (185 road miles, about 695 ft each). Its busiest road, US 20, carries 6,291 vehicles a day, 4.7 times the average road. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Ida County, Iowa

Traffic

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

vehicles per day1,330
Trucks

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

11.6%
Average travel time

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

28.4 min
Congestion ratio

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

5.8%
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.

$66,876

Our data shows 1,330 vehicles per day on the average road in Ida County, Iowa, and 213,216 vehicle-miles traveled per day (≈77.8 million per year) across its 185 miles of monitored roads. Trucks are 11.6% of traffic, close to the 11.0% across Iowa.

Shorter trips than 98% of counties in Iowa

Ida sees 56% lower average daily traffic volume than the state average (1,330 vehicles per day against 3,042), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is about 0.3% of Iowa's statewide total. Ida carries less traffic than 76% of counties in Iowa.

At 28.4 minutes, the average travel time is 14% lower than the state level. Its average travel time of 28.4 minutes is shorter than 98% of counties in Iowa.

Congestion runs 49% lower than the state level, at a ratio of 5.8%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Ida County, Iowa

Trafficvehicles per day2,676
Trucks15.1%
Average travel time54.1 min
Congestion ratio5.8%
Drivers’ average age48.0 yrs
Drivers’ average income$70,350

A significant share of driving in Ida County, Iowa, 37% of vehicle-miles, happens on highways. The average highway carries 2,676 vehicles per day, 117% more than the average non-highway road in the same area, which carries 1,233 vehicles per day.

Highways make up 16% of the monitored road miles (29 miles, 95 segments), so they carry more than their share: 78,155 vehicle-miles traveled per day (≈28.5 million per year).

Fewer highway trucks than 91% of counties in Iowa

At 15.1%, highway truck share is 6% lower than the state average. The highway traffic mix is typical for Iowa: neither freight- nor commuter-dominated.

59% of counties in Iowa see a lower highway truck share than Ida's 15.1%. 91% of counties in Iowa see more highway trucks per day than Ida's roughly 405.

non-highway traffic icon

Non-highway Traffic in Ida County, Iowa

Trafficvehicles per day1,233
Trucks9.6%
Average travel time26.5 min
Congestion ratio5.8%
Drivers’ average age52.8 yrs
Drivers’ average income$66,029

Local roads carry more than half of all travel in Ida County, Iowa (63% of vehicle-miles). On the average non-highway road, that comes to 1,233 vehicles per day.

Local roads make up 84% of the monitored road miles (156 miles in 1,310 segments) but carry less than their share of travel: 135,061 vehicle-miles traveled per day (≈49.3 million per year). Trucks make up 9.6% of non-highway traffic, about 1 in 10 vehicles.

Drivers from lower-income areas than 84% of counties in Iowa

Non-highway roads carry a truck concentration that's 36% lower than the highway network.

At 48% lower than the state level, the non-highway congestion ratio of 5.8% signals easier movement on local roads.

Ida's average driver income is lower than 84% of counties in Iowa. The driver population here skews older than 62% of counties in Iowa.

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 a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 13% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +9% versus the annual average.
Lowest month:
January is the quietest month, with volumes -21% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Ida County, Iowa, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +9% in high season.

Ida County vs. Iowa Traffic Comparison

Of the four measures, average daily traffic per road differs most: Ida County runs 56% below the Iowa average.

MetricIda CountyIowa averageDifference
Traffic1,3303,042-56.3%
Truck % (Total Traffic)11.6%11.0%+5.7%
Truck % (Highway)15.1%16.1%-6.1%
Avg. Travel Time28.4 min33.0 min-14.0%

How Ida County compares

Ida County moves the least traffic of its nearby counties

Set against the average of the 4 areas nearest to it, Ida County moves 27.4% of the total daily travel and sees 23.3% shorter typical trips; it has the fourth busiest roads of the five. It is the quiet one of the group - below the areas around it on volume, total travel and trip length alike.

Ida 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
Ida County1,33011.6%213,21628.4 min5.8%
Sac County, Iowa1,33412.0%502,07839.0 min5.1%
Crawford County, Iowa1,4229.9%368,22437.9 minN/A
Woodbury County, Iowa3,4679.5%1,970,56631.6 min12.6%
Cherokee County, Iowa1,2779.2%269,72539.5 min5.9%
Iowa average3,04211.0%N/A33.0 min11.4%

Ida County ranked within Iowa

Ida County sits in the bottom quarter of the Iowa field on average travel time, at #97 of 99.

Ida County ranked among 99 county-level areas in Iowa (1 = highest); measures without data in every county rank a smaller field, down to 70.
MeasureIda CountyIowa rank
Traffic volume (AADT)1,330#75 of 99
Highway vehicle-miles per day78,155#66 of 70
Truck share on highways15.1%#29 of 70
Highway trucks per day405#64 of 70
Average travel time28.4 min#97 of 99
Average driver income$66,876#83 of 99
Average driver age51.0 yrs#38 of 99

Ida County ranks #38 of 99 on average driver age but #97 of 99 on average travel time - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Ida County, Iowa

The three busiest roads in Ida County average 5,590 vehicles a day, 4.2 times the county average of 1,330 across all its monitored roads.

US 20 is the busiest road, at 6,291 vehicles a day, 1,068 of them trucks (17.0%). It tops the truck ranking too, with the most trucks.

220th Street carries longer journeys than most roads here, with a median trip of 64.9 minutes against 28.4 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 20Trunk road · 6,291vehicles1,068trucks · 17.0%
Road class
Trunk road
Congestion ratio
7.0%
Median trip time
51.2 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$65,942

On its busiest stretch, US 20 carries 4.7 times the county average; trucks are 17.0% of it, above the county-wide 11.6%.

2IA 20Trunk road · 5,500vehicles800trucks · 14.6%
Road class
Trunk road
Congestion ratio
6.0%
Median trip time
54.9 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$68,482

Drivers on IA 20 are on long journeys, a median 54.9 minutes against 28.4 county-wide: a through route more than a local street.

3160th StreetTrunk road · 4,978vehicles745trucks · 15.0%
Road class
Trunk road
Congestion ratio
5.5%
Median trip time
54.7 min
Drivers’ median age
47.0 yrs
Drivers’ average income
$74,363

160th Street carries through traffic: the median trip using it lasts 54.7 minutes, against 28.4 for the county.

4Moorehead AvenueSecondary road · 4,696vehicles255trucks · 5.4%
Road class
Secondary road
Congestion ratio
11.3%
Median trip time
23.3 min
Drivers’ median age
53.7 yrs
Drivers’ average income
$63,394

Moorehead Avenue peaks at 4,696 vehicles a day, 3.5 times the county average; trucks are 5.4% of it, below the county-wide 11.6%.

5Main StreetPrimary road · 3,788vehicles463trucks · 12.2%
Road class
Primary road
Congestion ratio
5.7%
Median trip time
27.5 min
Drivers’ median age
51.1 yrs
Drivers’ average income
$63,313

Main Street carries 2.8 times the county average at its busiest, 463 of them trucks (12.2%, above the county-wide 11.6%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 20Trunk road · #1 by traffic6,291vehicles1,068trucks · 17.0%
2IA 20Trunk road · #2 by traffic5,500vehicles800trucks · 14.6%
3160th StreetTrunk road · #3 by traffic4,978vehicles745trucks · 15.0%
4Main StreetPrimary road · #5 by traffic3,788vehicles463trucks · 12.2%
5220th StreetTrunk road · 2,096vehicles358trucks · 17.1%
Road class
Trunk road
Congestion ratio
4.8%
Median trip time
64.9 min
Drivers’ median age
46.6 yrs
Drivers’ average income
$81,264

220th Street peaks at 2,096 vehicles a day, 58% more than the county average; trucks are 17.1% of it, above the county-wide 11.6%.

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

IdaDepartment 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 Ida County

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

Need segment-level traffic data?

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