
Total Traffic Volume & Performance in Gratiot County, Michigan
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day4,210 |
|---|
Trucks The percentage of the total traffic volume composed of heavy vehicles. | 10.2% |
|---|
Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 36.5 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. | 45.7 yrs |
|---|
Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $65,569 |
|---|
A typical monitored road in Gratiot County, Michigan sees 4,210 vehicles per day, while its 236 miles of monitored roads together handle 1,158,101 vehicle-miles traveled per day (≈423 million per year). At 10.2%, the truck share runs above the 7.7% across Michigan: about 1 in 10 vehicles.
Longer trips than 85% of counties in Michigan
At 4,210 vehicles per day, the average monitored road in Gratiot carries 45% less traffic than the state average of 7,697, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 0.5% of Michigan's statewide total. By volume, Gratiot's 4,210 vehicles per day outpaces 60% of counties in Michigan.
At 36.5 minutes, the average travel time is 9% higher than the state level. On travel time, Gratiot runs longer than 85% of counties in Michigan.
At 39% lower than the state level, the 11.2% congestion ratio signals smoother traffic flow - travel times are easy to plan around for scheduled deliveries.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Gratiot County, Michigan
| Traffic | vehicles per day8,609 |
|---|
| Trucks | 12.7% |
|---|
| Average travel time | 51.2 min |
|---|
| Congestion ratio | 19.6% |
|---|
| Drivers’ average age | 45.4 yrs |
|---|
| Drivers’ average income | $65,568 |
|---|
Highways carry more than half of all travel in Gratiot County, Michigan (62% of vehicle-miles). The average highway carries 8,609 vehicles per day, 167% more than the average non-highway road in the same area, which carries 3,228 vehicles per day.
With 33% of the road miles (78 miles in 657 segments), highways punch above their length, carrying 719,964 vehicle-miles traveled per day (≈263 million per year).
That is more highway travel volume than 67% of counties in Michigan.
Higher highway truck share than 79% of counties in Michigan
At 12.7%, highway truck share is 6% higher than the state average. The highway traffic mix is typical for Michigan: neither freight- nor commuter-dominated.
79% of counties in Michigan see a lower highway truck share than Gratiot's 12.7%. Gratiot's highway truck count is higher than 64% of counties in Michigan, at roughly 1,089 trucks per day.

Non-highway Traffic in Gratiot County, Michigan
| Traffic | vehicles per day3,228 |
|---|
| Trucks | 6.2% |
|---|
| Average travel time | 33.2 min |
|---|
| Congestion ratio | 9.3% |
|---|
| Drivers’ average age | 46.1 yrs |
|---|
| Drivers’ average income | $65,570 |
|---|
Local roads carry a significant share of travel in Gratiot County, Michigan: 38% of all vehicle-miles. A typical local road sees 3,228 vehicles per day.
Spread over 158 miles and 2,942 segments, 67% of the road network, local roads carry a lighter load per mile: 438,137 vehicle-miles traveled per day (≈160 million per year). About 1 in 16 vehicles on non-highway roads is a truck (6.2%).
Younger drivers than 89% of counties in Michigan
The concentration of trucks on non-highway roads is 51% lower than on highways.
Non-highway congestion (9.3%) runs 49% lower than the state average, pointing to smoother local traffic flow.
Trip origins here have higher average income than 51% of counties in Michigan. 89% of counties in Michigan have an older driver population than Gratiot.