
Total Traffic Volume & Performance in Gwinnett County, Georgia
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day12,642 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.8% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.2 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. | 26.8% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $102,968 |
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The average monitored road in Gwinnett County, Georgia carries 12,642 vehicles per day. Across its 1,227 miles of monitored roads, that adds up to 19,215,872 vehicle-miles traveled per day (≈7.0 billion per year). Trucks are a smaller part of the mix than across Georgia: 6.8% against 9.7%.
Busier roads than 99% of counties in Georgia
Gwinnett's average daily traffic volume is 71% higher than the state average - 12,642 vehicles per day against 7,398 - suggesting more traffic load per road - prime passing trade for storefronts, with more competition for road space. Across the whole network, that travel is about 6.9% of Georgia's statewide total. By volume, Gwinnett's 12,642 vehicles per day outpaces 99% of counties in Georgia.
At 34.2 minutes, the average travel time matches the state level closely. On travel time, Gwinnett runs longer than 59% of counties in Georgia.
Congestion runs 59% higher than the state level, at a ratio of 26.8%, which means more pronounced congestion - expect markedly slower peak-hour deliveries and unreliable arrival times.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Gwinnett County, Georgia
| Traffic | vehicles per day27,601 |
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| Trucks | 9.4% |
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| Average travel time | 37.8 min |
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| Congestion ratio | 46.5% |
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| Drivers’ average age | 43.7 yrs |
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| Drivers’ average income | $101,174 |
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Travel in Gwinnett County, Georgia splits roughly evenly, with about half of it (50% of vehicle-miles) on highways. The average highway carries 27,601 vehicles per day, 152% more than the average non-highway road in the same area, which carries 10,944 vehicles per day.
With 24% of the road miles (293 miles in 3,634 segments), highways punch above their length, carrying 9,650,741 vehicle-miles traveled per day (≈3.5 billion per year).
That puts Gwinnett among the top 3 counties in Georgia for highway travel volume.
Lower highway truck share than 82% of counties in Georgia
The concentration of trucks on highways (9.4%) is 30% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
By truck concentration, highways here trail 82% of counties in Georgia. 78% of counties in Georgia see fewer highway trucks per day than Gwinnett's roughly 2,606.

Non-highway Traffic in Gwinnett County, Georgia
| Traffic | vehicles per day10,944 |
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| Trucks | 4.1% |
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| Average travel time | 33.8 min |
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| Congestion ratio | 24.6% |
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| Drivers’ average age | 43.5 yrs |
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| Drivers’ average income | $104,473 |
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Travel in Gwinnett County, Georgia splits roughly evenly, with about half of it (50% of vehicle-miles) on local roads. A typical local road sees 10,944 vehicles per day.
Spread over 935 miles and 32,018 segments, 76% of the road network, local roads carry a lighter load per mile: 9,565,131 vehicle-miles traveled per day (≈3.5 billion per year). About 1 in 24 vehicles on non-highway roads is a truck (4.1%).
Drivers from higher-income areas than 96% of counties in Georgia
Compared to highways, non-highway routes see 56% fewer trucks by share.
At 52% higher than the state level, the non-highway congestion ratio of 24.6% signals more friction on local roads.
Gwinnett's average driver income is higher than 96% of counties in Georgia. Gwinnett's median driver age is lower than 89% of counties in Georgia.