Santa Ana, CA to Colusa, CA is 482.8 miles and takes about 8h 55m via Westside Freeway, Golden State Freeway, and I 5 Truck, with a fuel budget near $107 and an overnight plan recommended. This route largely stays within California's Pacific Coast region, offering a straightforward drive up the central part of the state. With 99% of the trip on highways, it's designed for covering distance efficiently. Given the nearly 9-hour drive time, planning for an overnight stop is wise to avoid an excessively long day behind the wheel.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
241.4 miles from Santa Ana, CA
A natural place for your longest stop of the day
, about 4h 29m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
357.2 mi
6h 26m
Golden State Freeway
50 mi
57m
I 5 Truck
37.7 mi
43m
Santa Ana Freeway
26.9 mi
31m
CA 20
8.4 mi
12m
North Broadway
1.5 mi
2m
Market Street
0.3 mi
<1m
West Santa Clara Avenue
0.1 mi
<1m
Longest stretch:
Westside Freeway
— 357.2 mi, about 6h 26m
Traffic on I-5
Hour-of-day weekday pattern from 664 FHWA count stations on your route.
Peak
4 PM
~3,385 veh/hr typical
· worst 4,526
Quietest
2 AM
~509 veh/hr
Peak-to-quiet ratio
6.7×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 89 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Santa Ana, CA and Colusa, CA.
1
Start on West 1st Street
0.1 mi·15 sec·West 1st Street
2
Turn right onto North Broadway
1.5 mi·2 min·North Broadway
Use the straight / right lanes.
3
Turn right onto West Santa Clara Avenue
0.1 mi·14 sec·West Santa Clara Avenue
4
Continue on this road
0.3 mi·26 sec·this road
Toward I 5 North: Los AngelesUse the left / straight / right lanes.
5
Merge onto I 5
8.9 mi·10 min·Santa Ana Freeway
Use the straight / slight right lanes.
6
Keep slight right at fork onto I 5
18 mi·20 min·Santa Ana Freeway
Use the straight / slight right lanes.
7
Keep slight right at fork onto I 5
25 mi·29 min·Golden State Freeway
Use the straight / slight right lanes.
8
Keep slight left at fork onto I 5
2.2 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
9
Keep slight right at fork onto I 5 Truck
1.5 mi·1 min·I 5 Truck
Exit 161AToward I 5 Truck North, CA 14 TruckUse the straight / slight right lanes.
10
Keep slight left at fork onto I 5 Truck
36 mi·41 min·I 5 Truck
Use the straight / slight right lanes.
11
Keep slight left at fork onto I 5
22 mi·25 min·Golden State Freeway
Use the straight / slight right lanes.
12
Keep slight right at fork onto I 5
226 mi·4 hr 1 min·Westside Freeway
Toward I 5 NorthUse the straight / slight right lanes.
13
Keep slight right at fork onto I 5
26 mi·27 min·Westside Freeway
14
Keep left at fork onto I 5
54 mi·59 min·Westside Freeway
Use the straight / slight right lanes.
15
Keep slight left at fork onto I 5
52 mi·56 min·Westside Freeway
Use the straight / slight right lanes.
16
Take the exit
0.3 mi·34 sec
Toward CA 20: Colusa, Clear Lake
17
Turn right onto CA 20
8.4 mi·12 min·CA 20
18
Turn right onto CA 20
0.3 mi·45 sec·Market Street
Use the straight / right lanes.
19
Arrive at destination
CA 20
Trip Plan
With an estimated drive of nearly 9 hours, this trip is best split over two days. Aim to depart Santa Ana in the morning to make good progress, especially if you plan to stop around the halfway point. The longest stretch of highway driving is over 350 miles, so be sure to take breaks. Keep an eye on your fuel gauge, as services can be spread out on parts of I-5. A good stopping point would be roughly halfway through the 482.8-mile distance, allowing for a more relaxed second day of driving to Colusa.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 241.4 miles from Santa Ana, CA, or about 4h 29m into the drive.
The longest continuous stretch on this route runs about 357.2 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 106 miles or 2h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 241.4 miles or 4h 29m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 241.4 miles or 4h 29m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 46m
Traffic, exits, and arrival timing usually matter more near Colusa, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Santa Ana, CA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Santa Ana, CA
Aim for roughly 241 miles and 4.5 hours of wheel time on this day.
Day 2
Finish the approach into Colusa, CA
Aim for roughly 241 miles and 4.5 hours of wheel time on this day.
Your first comfortable stop window is around 106 miles from Santa Ana, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 357.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 17
5 decision points cluster between mile 0.1 and 116.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.1 mi into trip|~0m in|North Broadway
Turn right onto North Broadway
Lane positioning matters here
Use the straight / right lanes.
6
11 mi into trip|~14m in|I 5 / Santa Ana Freeway
Keep slight right at fork onto I 5 / Santa Ana Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
6
28.9 mi into trip|~34m in|I 5 / Golden State Freeway
Keep slight right at fork onto I 5 / Golden State Freeway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
9
56.6 mi into trip|~1h 7m in|I 5 Truck
Keep slight right at fork onto I 5 Truck toward I 5 Truck North, CA 14 Truck
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 161A
Toward I 5 Truck North, CA 14 Truck
7
116.6 mi into trip|~2h 16m in|I 5 / Westside Freeway
Keep slight right at fork onto I 5 / Westside Freeway toward I 5 North
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 5 North
Fuel & Cost
Regular Gas
$116.80 one way
$233.61 round trip
$6.15/gal25.4 MPG avg169 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$6.34
$120.49
$240.98
premium
$6.50
$123.48
$246.95
diesel
$6.18
$117.45
$234.90
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$117
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$247–$357
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 168.9 kg one way.
Prices: EIA weekly data, 2026-10-19.
Driving Electric?
About $51 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
144.8
1
$50.69
$23.17
Efficient EV
120.7
1
$42.25
$19.31
EV Truck/SUV
193.1
2
$67.59
$30.90
Gas CO2
169 kg
EV CO2
56 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Oct 19, 2026
Origin
Santa Ana, CA
Evening
in Santa Ana on Tuesday
Local time
7:48 PM
PDT
Current temp
65°F
Patchy Fog
0 mph1% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued October 19 at 1:23AM PDT until October 20 at 9:00AM PDT by NWS San Diego CA
Beach Hazards Statement
Beach Hazards Statement issued October 18 at 12:31PM PDT until October 20 at 9:00AM PDT by NWS Los Angeles/Oxnard CA
Destination
Colusa, CA
Evening
in Colusa on Tuesday
Local time
7:48 PM
PDT
Current temp
47°F
Mostly Clear
SE 7 mph1% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued October 19 at 1:23AM PDT until October 20 at 9:00AM PDT by NWS San Diego CA
Beach Hazards Statement
Beach Hazards Statement issued October 18 at 12:31PM PDT until October 20 at 9:00AM PDT by NWS Los Angeles/Oxnard CA
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
18 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
8h 55m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Santa Monica Mountains National Recreation Area
National Recreation Area
The Santa Monica Mountains offer easy access to surprisingly wild places. Experience the famous beaches of Malibu or explore more than 500 miles of trails. The park abounds with historical and cultura...
22 mi from route
~56 min detour
Free
near mile 49.9
Yes, we can! Widely recognized as the most important Latino leader in the United States during the twentieth century, Cesar Chavez led farm workers and supporters in the establishment of the country's...
27 mi from route
~67 min detour
Free
near mile 116.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This trip is almost entirely highway driving, with 99% of the 482.8 miles on major freeways. You'll experience a substantial stretch of 357.2 miles on the Westside Freeway, which means extended periods of consistent speed. Expect frequent exits and merges as you navigate through various populated areas and more open stretches. The profile is mostly highway, so you won't encounter significant changes in road type until the very end.
99% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 357.2 mi on Westside Freeway.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on Westside Freeway and Golden State Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near North Broadway.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 17 significant decision points across 482.8 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (North Broadway): Lane positioning matters here; at 11 miles (I 5 / Santa Ana Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 28.9 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
The longest stretch is about 357.2 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 241 miles on day one.
Yes — we found about 43 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Colusa, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. There are 43 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.1 miles (North Broadway): Lane positioning matters here; at 11 miles (I 5 / Santa Ana Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 28.9 miles (I 5 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Santa Monica Mountains National Recreation Area and César E. Chávez National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 8.9 hours each way, a round trip means 17.9 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Colusa, CA before the return drive.
