- Signs stored within 19 miles (30 km): 805 (805 from the state's sign permit list).
- Within 3 miles of the centre: 49.
- Lit or electronic: 131.
- Traffic counts held: 961, 925 of them at 20,000+ vehicles a day.
- Busiest counted road: Route 10, 345,000 vehicles a day.
- Busy roads with no stored sign within 1 km (0.6 mi): Route 118.
- Most signs near one road: Route 605, 133.
Busiest counted roads
| Road | Vehicles a day | Signs within 1 km (0.6 mi) |
|---|---|---|
| Route 10 | 345,000 | 124 |
| Route 405 | 329,000 | 98 |
| Route 210 | 324,000 | 33 |
| Route 110 | 317,000 | 81 |
| Route 5 | 288,000 | 115 |
| Route 101 | 285,000 | 39 |
| Route 105 | 285,000 | 30 |
| Route 605 | 284,000 | 133 |
| Route 91 | 284,000 | 88 |
| Route 60 | 242,000 | 49 |
Where the signs are
Route 605 (133), Route 710 (128), Route 10 (124), Route 5 (115), Route 405 (98) and Route 91 (88).
| From the centre | Signs |
|---|---|
| Under 1.2 mi | 10 |
| 1.2 mi to 3.1 mi | 39 |
| 3.1 mi to 6.2 mi | 99 |
| 6.2 mi to 12.4 mi | 300 |
| 12.4 mi to 18.6 mi | 357 |
| Vehicles a day | Counts | No sign within 1 km (0.6 mi) |
|---|---|---|
| 20,000 to 50,000 | 123 | 79 |
| 50,000 to 100,000 | 90 | 70 |
| 100,000+ | 712 | 288 |
Sign rules: California
- Spacing between signs: interstate 500 ft, freeway 500 ft, federal-aid primary 100 ft in cities, 300 ft outside (Cal. Bus. & Prof. Code 5408(d)).
- Controlled area: 660 ft from the road (Cal. Bus. & Prof. Code 5408 (with 5405)). The finder checks both for each ranked site.
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Last updated: 14 November 2026. Guide only. Confirm all results with a council planner before you rely on them.