Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 6, 2026 · Editorial standards
Drive Time
48m
Distance
35.2 mi
57 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$6
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Saint Paul, MN
Wikimedia Commons
Castle Rock, MN
Tom Fisk
The drive from Saint Paul, MN to Castle Rock, MN covers 35.2 miles and takes about 48m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Lafayette Freeway, US 52, Northfield Boulevard for much of the mileage, and the overall profile is mostly highway. The longest uninterrupted segment is about 12 miles on Lafayette Freeway. At current regular gas prices, budget about $5.57 one way before food or hotel costs.
| Road | Distance | Duration |
|---|---|---|
| Lafayette Freeway | 12 mi | 14m |
| US 52 | 10.4 mi | 11m |
| Northfield Boulevard | 6 mi | 9m |
| 280th Street East | 4.7 mi | 6m |
| Robert Street North | 0.6 mi | 1m |
| West Lafayette Frontage Road | 0.4 mi | 1m |
| Plato Boulevard | 0.3 mi | <1m |
| Kellogg Boulevard East | 0.1 mi | <1m |
Step-by-step road directions between Saint Paul, MN and Castle Rock, MN.
Start on Wabasha Street North
Turn right onto 4th Street East
Turn right onto Cedar Street
Turn left onto Kellogg Boulevard East
Turn right onto MN 3
Turn left onto CH 40
Turn right onto West Lafayette Frontage Road
Take the ramp
Merge onto US 52
Keep slight right at fork onto US 52
Take the exit
Turn right onto CH 47
Turn right onto CH 86
Turn right onto Danville Avenue West
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
18 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 35 miles helps settle the day before fatigue starts building.
The midpoint is around 17.6 miles from Saint Paul, MN, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 0 and 24.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn right onto 4th Street East
Navigation decision point
Merge onto US 52 / Lafayette Freeway
Merge point - match speed before joining. Lane positioning matters here
Keep slight right at fork onto US 52 toward Rochester
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit toward CR 47: Hampton
Exit ramp - move to the correct lane early. Lane positioning matters here
Turn right onto CH 47 / Northfield Boulevard
Lane positioning matters here
Regular Gas
$5.57 one way
$11.15 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.28 | $5.94 | $11.87 |
| premium | $4.85 | $6.72 | $13.44 |
| diesel | $5.60 | $7.76 | $15.52 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 12.3 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $4 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 10.6 | 0 | $3.70 | $1.69 |
| Efficient EV | 8.8 | 0 | $3.08 | $1.41 |
| EV Truck/SUV | 14.1 | 0 | $4.93 | $2.25 |
Gas CO2
12 kg
EV CO2
4 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.
Current conditions at both ends of the drive.
Origin
Evening in Saint Paul on Saturday
Local time
7:25 PM
CDT
Current temp
58°F
Partly Cloudy
Destination
Evening in Castle Rock on Saturday
Local time
7:25 PM
CDT
Current temp
54°F
Partly Cloudy
59°F
Newport, MN
18 mi in
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
35.2 mi in 48m, mostly highway — 12 mi of that is on Lafayette Freeway.
This is a straightforward highway drive that stays mostly on Lafayette Freeway and US 52. You will hit about 12 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near 4th Street East.
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 35.2 miles you will encounter 12 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (4th Street East): Navigation decision point; at 1.8 miles (US 52 / Lafayette Freeway): Merge point - match speed before joining. Lane positioning matters here; at 13.8 miles (US 52): Highway fork - watch signs carefully. Lane positioning matters here.
Mostly flat terrain
Total Climb
318 ft
Total Descent
173 ft
Highest Point
990 ft
~25.1 mi in
Elevation Range
201 ft
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Saint Paul, MN and Castle Rock, MN, road signs point toward Rochester and Cr 47: Hampton.
Rochester
Cr 47: Hampton
Founded 1854
Saint Paul (or St. Paul) is the capital city and the second largest city of the US state of Minnesota. Along with the slightly larger Minneapolis it forms the urban core of the Twin Cities region, the third largest metropolis in the Midwest.
Top landmarks
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 48m. Total distance: 35.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
48m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (64%). Some complex stretches to watch for.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and USGS 3DEP for elevation. See our methodology for refresh cadence and limitations.
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