State rankings

Speed Limits by State

Nevada has the highest Rural Interstates (80 mph), followed by Montana (80 mph) and South Dakota (80 mph). Hawaii has the lowest (60 mph).

50 of 51 states

Rural Interstates

Darker means higher. Click a place to highlight it.

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All 50 ranked

Highest first.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one state; the lines mark the median and the middle half.

Median
70 mph
Middle half 70 mph – 75 mph
Average
70.8 mph
50 states
Highest
80 mph
Nevada
Lowest
60 mph
Hawaii

Data

Click a column to sort, a row to highlight that place on the charts.

50 states · # = rank by Rural Interstates
#
1Nevada80 mph—
1Montana80 mph70 for trucks
1South Dakota80 mph—
1North Dakota80 mph—
5Texas75 mph—
5Arizona75 mph—
5Colorado75 mph—
5Louisiana75 mph—
5Oklahoma75 mph—
5Utah75 mph—
5Arkansas75 mph70 for trucks
5Kansas75 mph—
5New Mexico75 mph—
5Idaho75 mph70 for trucks
5Nebraska75 mph—
5Maine75 mph—
5Wyoming75 mph—
18California70 mph55 for trucks
18Florida70 mph—
18Pennsylvania70 mph—
18Illinois70 mph—
18Ohio70 mph—
18Georgia70 mph—
18North Carolina70 mph—
18Michigan70 mph65 for trucks
18Virginia70 mph—
18Washington70 mph60 for trucks
18Tennessee70 mph—
18Indiana70 mph65 for trucks
18Missouri70 mph—
18Maryland70 mph—
18Wisconsin70 mph—
18Minnesota70 mph—
18South Carolina70 mph—
18Alabama70 mph—
18Iowa70 mph—
18Mississippi70 mph—
18West Virginia70 mph—
39New York65 mph—
39New Jersey65 mph—
39Massachusetts65 mph—
39Kentucky65 mph—
39Oregon65 mph55 (65 on specified segments) for trucks
39Connecticut65 mph—
39New Hampshire65 mph—
39Rhode Island65 mph—
39Delaware65 mph—
39Alaska65 mph—
39Vermont65 mph—
50Hawaii60 mph—

What correlates with Rural Interstates?

Pearson r against 2,110 other state metrics sharing at least 30 states. Correlation is not causation.

Higher together

Places that have a higher Rural Interstates tend to score higher on these

  1. Avg Farm SizeStates with the Most Farmland
    r = +0.68 · strong · n = 50
    Plot
  2. Area OperatedFarm Count by State
    r = +0.68 · strong · n = 50
    Plot
  3. Average # of Sunny Hours per YearSunniest States in the U.S.
    r = +0.62 · strong · n = 47
    Plot
  4. Trump Approval RatingTrump Approval Rating by State
    r = +0.61 · strong · n = 50
    Plot
  5. Lean RepublicansPolitical Parties by State
    r = +0.60 · strong · n = 50
    Plot
  6. Outdoor Allergy Ragweed Pollen ScoreAllergy-Friendly States
    r = +0.60 · strong · n = 48
    Plot

Opposite directions

Places that have a higher Rural Interstates tend to score lower on these

  1. Mean Water Availability per HUCStates with the Most Water
    r = −0.73 · very strong · n = 48
    Plot
  2. Water AvailabilityStates with the Most Water
    r = −0.71 · very strong · n = 48
    Plot
  3. Median Water Availability per HUCStates with the Most Water
    r = −0.70 · very strong · n = 48
    Plot
  4. Farm Real Estate Value per AcreOff-Grid Living Legal States
    r = −0.68 · strong · n = 50
    Plot
  5. Price Level (Utilities)Cost of Living by State (Regional Price Parities)
    r = −0.66 · strong · n = 50
    Plot
  6. Yearly Precipitation (Inches)Climate by State (1991–2020 Averages)
    r = −0.65 · strong · n = 50
    Plot

Quick answers

Which state has the highest Rural Interstates?
Nevada has the highest Rural Interstates, at 80 mph, followed by Montana (80 mph) and South Dakota (80 mph).
Which state has the lowest Rural Interstates?
Hawaii has the lowest Rural Interstates, at 60 mph.
What is the median Rural Interstates across US states?
The median is 70 mph across the 50 US states with data.
Where does this speed limits by state data come from?
Rankodex compiles it from World Population Review and the primary sources it cites: Maximum posted speed limits - The Insurance Institute for Highway Safety; Speed limits in the United States - Wiki; Which States Have 80 MPH Speed Limits in 2025? - Motor1.