
Total Traffic Volume & Performance in Chatham County, Georgia
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day8,661 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.2% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.6 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 19.0% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 42.9 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $85,141 |
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Our data shows 8,661 vehicles per day on the average road in Chatham County, Georgia, and 7,858,595 vehicle-miles traveled per day (≈2.9 billion per year) across its 651 miles of monitored roads. Trucks are 9.2% of traffic, close to the 9.7% across Georgia.
Busier roads than 91% of counties in Georgia
Chatham's average daily traffic volume is 17% higher than the state average - 8,661 vehicles per day against 7,398 - suggesting more traffic load per road - a factor worth weighing in site selection and logistics planning. Network-wide, Chatham accounts for about 2.8% of Georgia's statewide total of vehicle-miles. By volume, Chatham's 8,661 vehicles per day outpaces 91% of counties in Georgia.
The average trip takes 32.6 minutes, on par with the state level. 61% of counties in Georgia have a longer average travel time than Chatham's 32.6 minutes.
Congestion is somewhat higher than the state level, at a ratio of 19.0% (13% higher) - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Chatham County, Georgia
| Traffic | vehicles per day21,855 |
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| Trucks | 12.0% |
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| Average travel time | 34.8 min |
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| Congestion ratio | 35.7% |
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| Drivers’ average age | 43.1 yrs |
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| Drivers’ average income | $84,787 |
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Highways carry more than half of all travel in Chatham County, Georgia (56% of vehicle-miles). The average highway carries 21,855 vehicles per day, 194% more than the average non-highway road in the same area, which carries 7,435 vehicles per day.
Highways make up 32% of the monitored road miles (205 miles, 1,571 segments), so they carry more than their share: 4,365,998 vehicle-miles traveled per day (≈1.6 billion per year).
By highway travel volume, Chatham outranks 97% of counties in Georgia.
More highway trucks than 71% of counties in Georgia
The concentration of trucks on highways (12.0%) is 12% lower than the state average for similar road classifications. The highway traffic mix is typical for Georgia: neither freight- nor commuter-dominated.
Chatham's highway truck share (12.0%) is lower than 59% of counties in Georgia. By raw truck volume, Chatham carries more highway trucks than 71% of counties in Georgia.

Non-highway Traffic in Chatham County, Georgia
| Traffic | vehicles per day7,435 |
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| Trucks | 5.7% |
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| Average travel time | 32.4 min |
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| Congestion ratio | 17.5% |
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| Drivers’ average age | 42.8 yrs |
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| Drivers’ average income | $85,493 |
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Local roads carry a significant share of travel in Chatham County, Georgia: 44% of all vehicle-miles. A typical local road sees 7,435 vehicles per day.
Local roads make up 68% of the monitored road miles (446 miles in 16,899 segments) but carry less than their share of travel: 3,492,597 vehicle-miles traveled per day (≈1.3 billion per year). The truck share on non-highway roads is 5.7%.
Younger drivers than 92% of counties in Georgia
Non-highway roads carry a truck concentration that's 52% lower than the highway network.
Non-highway congestion (17.5%) runs slightly higher than the state level (8% higher).
Chatham's average driver income is higher than 85% of counties in Georgia. The driver population here skews younger than 92% of counties in Georgia.