
Total Traffic Volume & Performance in Los Alamos County, New Mexico
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,444 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 24.7 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. | 11.6% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $128,988 |
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A typical monitored road in Los Alamos County, New Mexico sees 5,444 vehicles per day, while its 53 miles of monitored roads together handle 248,563 vehicle-miles traveled per day (≈90.7 million per year). Cars dominate: trucks are just 6.0% of traffic, under the 16.2% across New Mexico.
The shortest trips of any county in New Mexico
Los Alamos sees 19% higher average daily traffic volume than the state average (5,444 vehicles per day against 4,562), suggesting more demand on each road - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 0.4% of New Mexico's statewide total of vehicle-miles. By volume, Los Alamos's 5,444 vehicles per day outpaces 97% of counties in New Mexico.
The average trip takes 24.7 minutes, 27% lower than the state level. It also posts the lowest average travel time in New Mexico, at 24.7 minutes.
Congestion runs 19% lower than the state level, at a ratio of 11.6%, which means smoother traffic flow - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Los Alamos County, New Mexico
| Traffic | vehicles per day13,725 |
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| Trucks | 7.5% |
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| Average travel time | 28.3 min |
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| Congestion ratio | 42.7% |
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| Drivers’ average age | 47.8 yrs |
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| Drivers’ average income | $112,969 |
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At 20% of vehicle-miles, highways carry a smaller share of the traffic in Los Alamos County, New Mexico than local roads. The average highway carries 13,725 vehicles per day, 178% more than the average non-highway road in the same area, which carries 4,935 vehicles per day.
That comes from just 6% of the monitored road miles: 3 miles in 59 segments, carrying 48,917 vehicle-miles traveled per day (≈17.9 million per year).
The lowest highway truck share of any county in New Mexico
At 7.5%, highway truck share is 66% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.
Los Alamos also posts the lowest highway truck share in New Mexico - 7.5%. By raw truck volume, Los Alamos carries more highway trucks than 58% of counties in New Mexico.

Non-highway Traffic in Los Alamos County, New Mexico
| Traffic | vehicles per day4,935 |
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| Trucks | 5.6% |
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| Average travel time | 24.5 min |
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| Congestion ratio | 9.7% |
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| Drivers’ average age | 47.6 yrs |
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| Drivers’ average income | $131,832 |
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Local roads carry the vast majority of travel in Los Alamos County, New Mexico, 80% of all vehicle-miles. On the average non-highway road, that comes to 4,935 vehicles per day.
Local roads also make up about 94% of the monitored road miles: 50 miles in 959 segments, together carrying 199,645 vehicle-miles traveled per day (≈72.9 million per year). Trucks make up 5.6% of non-highway traffic, about 1 in 18 vehicles.
The highest driver income of any county in New Mexico
Non-highway roads carry a truck concentration that's 25% lower than the highway network.
Non-highway congestion (9.7%) runs 36% lower than the state average, pointing to smoother local traffic flow.
Los Alamos also has the highest average driver income in New Mexico among trip origins - $128,988. Los Alamos's median driver age is higher than 56% of counties in New Mexico.