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Traffic heat map of Hamilton County, Indiana: 842 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 465 and I 69

Hamilton County, Indiana Traffic Counts

Its drivers come from the highest-income neighborhoods of any county in Indiana, averaging $120,373. This page breaks down traffic in Hamilton County, Indiana across 842 miles of monitored roads split into 19,159 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 Hamilton County, Indiana

Traffic

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

vehicles per day7,392
Trucks

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

6.0%
Average travel time

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

29.9 min
Congestion ratio

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

20.8%
Drivers’ average age

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

44.4 yrs
Drivers’ average income

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

$120,373

The average monitored road in Hamilton County, Indiana carries 7,392 vehicles per day. Across its 842 miles of monitored roads, that adds up to 7,300,635 vehicle-miles traveled per day (≈2.7 billion per year). Traffic here is mostly passenger cars: only 6.0% trucks, against 12.1% across Indiana.

Busier roads than 97% of counties in Indiana

Hamilton's average daily traffic volume is 30% higher than the state average - 7,392 vehicles per day against 5,704 - suggesting more traffic load per road - more exposure for roadside businesses, and more competition for road space. Network-wide, Hamilton accounts for about 4.6% of Indiana's statewide total of vehicle-miles. By volume, Hamilton's 7,392 vehicles per day outpaces 97% of counties in Indiana.

At 29.9 minutes, the average travel time is 11% lower than the state level. Its average travel time of 29.9 minutes is shorter than 93% of counties in Indiana.

At 33% higher than the state level, the 20.8% congestion ratio signals more pronounced congestion - a factor for delivery windows and signal timing.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Hamilton County, Indiana

Trafficvehicles per day26,892
Trucks9.2%
Average travel time38.2 min
Congestion ratio47.6%
Drivers’ average age44.4 yrs
Drivers’ average income$107,668

Highways carry a significant share of travel in Hamilton County, Indiana: 41% of all vehicle-miles. The average highway carries 26,892 vehicles per day, 287% more than the average non-highway road in the same area, which carries 6,952 vehicles per day.

That comes from just 12% of the monitored road miles: 104 miles in 423 segments, carrying 2,997,032 vehicle-miles traveled per day (≈1.1 billion per year).

By highway travel volume, that ranks Hamilton in the top 3 counties in Indiana.

Lower highway truck share than 99% of counties in Indiana

Highway truck concentration here runs 53% lower than the state average, at 9.2%. Highways here carry mainly commuter and local trips, with little through freight.

By truck concentration, highways here trail 99% of counties in Indiana. 56% of counties in Indiana see fewer highway trucks per day than Hamilton's roughly 2,463.

non-highway traffic icon

Non-highway Traffic in Hamilton County, Indiana

Trafficvehicles per day6,952
Trucks3.8%
Average travel time29.8 min
Congestion ratio20.2%
Drivers’ average age44.4 yrs
Drivers’ average income$125,841

Local roads carry more than half of all travel in Hamilton County, Indiana (59% of vehicle-miles). On the average non-highway road, that comes to 6,952 vehicles per day.

Local roads make up 88% of the monitored road miles (738 miles in 18,736 segments) but carry less than their share of travel: 4,303,603 vehicle-miles traveled per day (≈1.6 billion per year). Trucks make up 3.8% of non-highway traffic, about 1 in 26 vehicles.

The highest driver income of any county in Indiana

Non-highway roads carry a truck concentration that's 58% lower than the highway network.

Non-highway congestion (20.2%) runs 33% higher than the state average, pointing to slower local traffic flow.

At $120,373, the average driver income for trips originating here is the highest in Indiana. The driver population here skews younger than 93% of counties in Indiana.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 8:00 AM–9:00 AM and PM peak 4:00 PM–7:00 PM, with volumes reaching approximately 83% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 20% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
July–September is the high season, with volumes +6% 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 Hamilton County, Indiana, the peak hour concentrates about 8% of the day's traffic, and there is a noticeable seasonal swing of +6% in high season.

Hamilton County vs. Indiana Traffic Comparison

Of the four measures, highway truck share differs most: Hamilton County runs 53% below the Indiana average. Its truck share is also 50% below.

MetricHamilton CountyIndiana averageDifference
Traffic7,3925,704+29.6%
Truck % (Total Traffic)6.0%12.1%-50.3%
Truck % (Highway)9.2%19.6%-53.2%
Avg. Travel Time29.9 min33.5 min-10.7%

How Hamilton County compares

Hamilton County has the lowest truck share of its nearby counties

Compared with its 4 closest neighbours, Hamilton County runs 5.4 percentage points less truck traffic and is 31.6% more congested; it has the second busiest roads of the five. The extra traffic here is local and light - trucks make up less of it than anywhere immediately around it.

Hamilton County and the 4 nearest county-level areas by centroid distance, with the Indiana average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Hamilton County7,3926.0%7,300,63529.9 min20.8%
Tipton County, Indiana3,26810.6%703,39233.9 min11.2%
Madison County, Indiana4,7679.2%2,834,76033.7 min12.9%
Marion County, Indiana10,2678.2%22,849,58733.4 min23.5%
Boone County, Indiana4,80417.6%2,757,85134.5 min15.5%
Indiana average5,70412.1%N/A33.5 min15.6%

Hamilton County ranked within Indiana

Hamilton County posts the highest average driver income of any county-level area in Indiana.

Hamilton County ranked among 92 county-level areas in Indiana (1 = highest); measures without data in every county rank a smaller field, down to 79.
MeasureHamilton CountyIndiana rank
Traffic volume (AADT)7,392#4 of 92
Highway vehicle-miles per day2,997,032#3 of 79
Truck share on highways9.2%#78 of 79
Highway trucks per day2,463#35 of 79
Average travel time29.9 min#86 of 92
Average driver income$120,373#1 of 92
Average driver age44.4 yrs#86 of 92

Hamilton County ranks #3 of 79 on highway travel volume but #78 of 79 on truck share on highways. It carries some of the heaviest highway traffic in Indiana, but very little of it is freight - this is commuter and local car volume, not through-trucking.

Busiest roads in Hamilton County, Indiana

The three busiest roads in Hamilton County average 91,721 vehicles a day, 12.4 times the county average of 7,392 across all its monitored roads.

I 465 is the busiest road, at 110,841 vehicles a day, 9,578 of them trucks (8.6%). I 69 is practically level with it at 110,372. I 69 carries the most trucks, 10,586 a day (9.6% of its traffic), although it ranks #2 for all traffic.

Trucks make up 13.1% of traffic on US 31, against 6.0% across all roads in the county.

Trips using US 31 are long: a median of 48.9 minutes against 29.9 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 465Motorway · 110,841vehicles9,578trucks · 8.6%
Road class
Motorway
Congestion ratio
62.9%
Median trip time
40.5 min
Drivers’ median age
44.3 yrs
Drivers’ average income
$108,892

I 465 is one of the more congested roads here: trips take 63% longer than at free-flow speed, against 21% county-wide.

2I 69Motorway · 110,372vehicles10,586trucks · 9.6%
Road class
Motorway
Congestion ratio
61.3%
Median trip time
38.1 min
Drivers’ median age
43.9 yrs
Drivers’ average income
$107,233

Delays build on I 69: its congestion ratio of 61% over free-flow time is well above the county's 21%.

3Meridian StreetMotorway · 53,951vehicles3,258trucks · 6.0%
Road class
Motorway
Congestion ratio
40.1%
Median trip time
36.6 min
Drivers’ median age
44.7 yrs
Drivers’ average income
$117,991

A main artery: Meridian Street's busiest stretch carries 7.3 times the county average; trucks are 6.0% of it, in line with the county-wide 6.0%.

4Keystone ParkwayMotorway · 45,995vehicles2,277trucks · 5.0%
Road class
Motorway
Congestion ratio
51.9%
Median trip time
33.5 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$118,489

Keystone Parkway is a trunk route for the county, carrying 6.2 times the county average on its busiest stretch; trucks are 5.0% of it, below the county-wide 6.0%.

5IN-37Motorway · 43,226vehicles3,286trucks · 7.6%
Road class
Motorway
Congestion ratio
52.5%
Median trip time
32.8 min
Drivers’ median age
43.3 yrs
Drivers’ average income
$109,623

IN-37 carries 5.8 times the county average at its busiest, 3,286 of them trucks (7.6%, above the county-wide 6.0%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 69Motorway · #2 by traffic110,372vehicles10,586trucks · 9.6%
2I 465Motorway · #1 by traffic110,841vehicles9,578trucks · 8.6%
3US 31Motorway · 34,453vehicles4,516trucks · 13.1%
Road class
Motorway
Congestion ratio
38.6%
Median trip time
48.9 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$99,140

US 31 carries 4.7 times the county average at its busiest, 4,516 of them trucks (13.1%, above the county-wide 6.0%).

4IN-37Motorway · #5 by traffic43,226vehicles3,286trucks · 7.6%
5Meridian StreetMotorway · #3 by traffic53,951vehicles3,258trucks · 6.0%
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

HamiltonDepartment 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 Hamilton County

The same traffic breakdown for the areas closest to Hamilton County, Indiana.

Need segment-level traffic data?

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