Portage to Jamestown is 146.5 miles and takes about 2h 50m via Casimir Pulaski Memorial Highway, with a fuel budget near $23 and enough daylight to finish in a day. This drive stays within Indiana, traversing familiar Midwest landscapes. Expect a local feel for much of the journey, making it a straightforward option for a single day. It's a practical choice if you're looking for a direct trip without extensive highway time.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
73.2 miles from Portage, IN
A natural place for your longest stop of the day
, about 1h 24m into the drive
.
Main Roads
Road
Distance
Duration
Casimir Pulaski Memorial Highway
120.4 mi
2h 11m
South Lebanon Street
8.6 mi
12m
West Main Street
5.5 mi
8m
I 80
3.7 mi
5m
Indiana Toll Road
2.6 mi
3m
County Road 50 West
2.3 mi
3m
Willowcreek Road
0.6 mi
1m
North State Street
0.5 mi
<1m
Longest stretch:
Casimir Pulaski Memorial Highway
— 120.4 mi, about 2h 11m
Turn-by-Turn Driving Directions
Step-by-step road directions between Portage, IN and Jamestown, IN.
1
Start on Central Avenue
0.4 mi·53 sec·Central Avenue
2
Turn right onto Willowcreek Road
0.6 mi·1 min·Willowcreek Road
Use the right lane.
3
Take the ramp
434 ft·11 sec
Toward I 80, I 90
4
Keep slight right at fork
0.1 mi·16 sec
5
Continue on this road
0.4 mi·47 sec·this road
6
Merge onto I 80; I 90
2.6 mi·3 min·Indiana Toll Road
Use the straight / slight right lanes.
7
Take the exit onto I 80
0.6 mi·1 min·I 80
Exit 21Toward I 80 West, I 94, US 6: Des MoinesUse the straight / slight right lanes.
8
Keep slight right at fork onto I 80
0.1 mi·13 sec·I 80
Toward I 94 West, I 80 West, SR 51, US 6 EastUse the straight / slight right lanes.
9
Keep slight left at fork onto I 80
2.9 mi·4 min·I 80
Toward I 94 West, I 80 WestUse the straight / slight right lanes.
10
Take the exit
0.6 mi·51 sec
Exit 12Toward I 65: Gary, Toll Road, IndianapolisUse the slight right lane.
11
Keep slight left at fork
0.1 mi·9 sec
Toward I 65 South, I 80 West, I 94 West, US 6 West: Indianapolis, Chicago
12
Keep slight left at fork
0.5 mi·59 sec
Toward I 65 South: IndianapolisUse the slight left lane.
13
Merge onto I 65
120 mi·2 hr 11 min·Casimir Pulaski Memorial Highway
Use the straight / slight right lanes.
14
Take the exit
0.2 mi·24 sec
Exit 139Toward SR 39: Lebanon, Lizton
15
Turn right onto SR 39
8.6 mi·12 min·South Lebanon Street
16
Continue on SR 39
2.3 mi·3 min·County Road 50 West
17
Continue on SR 39
0.5 mi·48 sec·North State Street
18
Turn right onto US 136
5.5 mi·8 min·West Main Street
19
Turn right onto North Darlington Street
91 ft·3 sec·North Darlington Street
20
Arrive at destination
North Darlington Street
Trip Plan
Given the relatively short duration of 2 hours and 50 minutes, you have plenty of flexibility for when to depart. Aim to leave mid-morning to allow for a relaxed start and a clear run through any potential local traffic. With only one planned stop indicated, consider breaking up the 120.4-mile stretch on Casimir Pulaski Memorial Highway if you prefer more frequent rests. Keep an eye on your fuel gauge, as the $23 estimated cost suggests this isn't a high-consumption route, but local roads can sometimes add unexpected mileage.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 73.2 miles from Portage, IN, or about 1h 24m into the drive.
The longest continuous stretch on this route runs about 120.4 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 32 miles or 39m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 73.2 miles or 1h 24m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 15m
Traffic, exits, and arrival timing usually matter more near Jamestown, IN than in the middle of the route.
Before You Leave
+
Open the route before leaving Portage, IN 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.
Day 1
Settle into the route from Portage, IN
This is one driving day of about 146.5 miles and 2h 50m.
Your first comfortable stop window is around 32 miles from Portage, IN.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Casimir Pulaski Memorial Highway for about 120.4 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 15
5 decision points cluster between mile 4 and 8.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
4 mi into trip|~6m in|I 80
Take the exit onto I 80 toward I 80 West, I 94, US 6: Des Moines
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 21
Toward I 80 West, I 94, US 6: Des Moines
8
4.6 mi into trip|~7m in|I 80
Keep slight right at fork onto I 80 toward I 94 West, I 80 West, SR 51, US 6 East
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 94 West, I 80 West, SR 51, US 6 East
8
4.7 mi into trip|~7m in|I 80
Keep slight left at fork onto I 80 toward I 94 West, I 80 West
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 94 West, I 80 West
8
7.7 mi into trip|~12m in
Take the exit toward I 65: Gary, Toll Road, Indianapolis
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 12
Toward I 65: Gary, Toll Road, Indianapolis
7
8.4 mi into trip|~13m in
Keep slight left at fork toward I 65 South: Indianapolis
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 65 South: Indianapolis
Fuel & Cost
Regular Gas
$22.90 one way
$45.81 round trip
$3.97/gal25.4 MPG avg51 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$25.15
$50.29
premium
$4.89
$28.19
$56.39
diesel
$5.61
$32.35
$64.69
Estimated Tolls: $0.18
Indiana Toll Road
(2.6 mi)$0.18
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$23
Tolls
$0
Meals
$25–$50
Total
$48–$73
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 51.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $15 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
43.9
0
$15.38
$7.03
Efficient EV
36.6
0
$12.82
$5.86
EV Truck/SUV
58.6
0
$20.51
$9.38
Gas CO2
51 kg
EV CO2
17 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 Apr 18, 2026
Origin
Portage, IN
Morning
in Portage on Sunday
Local time
11:12 AM
CDT
Current temp
45°F
Showers And Thunderstorms
SSW 15 to 20 mph93% chanceLive forecast
Flood Watch
Flood Watch issued April 17 at 6:27PM CDT until April 18 at 5:00AM CDT by NWS Chicago IL
Flood Watch
Flood Watch issued April 17 at 11:04AM CDT until April 23 at 7:00PM CDT by NWS Chicago IL
Destination
Jamestown, IN
Afternoon
in Jamestown on Sunday
Local time
12:12 PM
EDT
Current temp
53°F
Unavailable
Live forecast
72°F
Shelby, IN
73 mi in
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.
Time zone
1 hour later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
8 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 50m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
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.
Indiana Dunes National Park
National Park
Lake Michigan's might has influenced Indiana Dunes for millennia. Wind and waves have shaped the land, leaving a rich mosaic of habitats along these 15 miles of Indiana coast. Over 50 miles of trails...
6 mi from route
~15 min detour
$20
Park Closure: Partial Closures to Marquette Greenway Trail and Glenwood Dunes Trail
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route offers a turn-heavy local drive, with only a 50% share of highway driving. You'll experience a mix of roads, including Casimir Pulaski Memorial Highway, which accounts for the longest uninterrupted stretch at 120.4 miles. The drive transitions between more direct highway segments and local road navigation. Be prepared for frequent turns and changes in road type as you make your way across Indiana.
Only 2% highway — the rest is turn-by-turn surface driving.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 120.4 mi on Casimir Pulaski Memorial Highway.
How Hard Is This Drive?
9/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 4 miles in near I 80.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 15 significant decision points across 146.5 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 4 miles (I 80): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 4.6 miles (I 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 4.7 miles (I 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Portage, IN and Jamestown, IN, road signs point toward Indianapolis, Chicago and Lizton.
Indianapolis
7.7 mi in|~12m
Chicago
8.3 mi in|~12m
Lizton
129.3 mi in|~2h 25m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 50m. Total distance: 146.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 50m drive, comfortable solo distance.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 120.4 miles on Casimir Pulaski Memorial Highway. The full list of main roads is in the Roads section above.
Expect about $0.18 in tolls one way, starting with Indiana Toll Road. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
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 Jamestown, IN 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 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 4 miles (I 80): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 4.6 miles (I 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 4.7 miles (I 80): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Indiana Dunes National Park. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Jamestown, IN before heading back.
