how long is the katy trail

The Katy Trail in Missouri is about 240 miles long from Clinton to Machens, making it the longest developed rail-trail in the United States.

Quick Scoop: How long is the Katy Trail?

If you’re asking “how long is the Katy Trail,” you’re almost certainly talking about the famous rail-trail that runs across Missouri.

• The Katy Trail State Park spans roughly 240 miles across Missouri.

• Official park info describes it as a 240‑mile trail built on the former Missouri–Kansas–Texas (MKT or “Katy”) Railroad corridor, between Clinton and Machens.

• Many biking and trip-planning sites also round its length to about 239–240 miles , which is why you sometimes see slightly different exact mile numbers.

In practice, most riders and hikers treat the full Katy Trail as a roughly 240‑mile journey one way across Missouri.

One more twist: the Dallas Katy Trail

There is also a completely different “Katy Trail” in Dallas, Texas, which is a much shorter urban path:

• The Dallas Katy Trail is about 3.5 miles long, running through central Dallas as a city greenway.

So:

• If you mean Katy Trail State Park (Missouri) → about 240 miles.

• If you mean Katy Trail (Dallas) → about 3.5 miles.

Short HTML table for clarity

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<table>
  <thead>
    <tr>
      <th>Trail name</th>
      <th>Location</th>
      <th>Approx. length</th>
      <th>Notes</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Katy Trail State Park</td>
      <td>Missouri</td>
      <td>≈240 miles (Clinton–Machens)</td>
      <td>Longest developed rail-trail in the U.S.[web:1][web:3][web:5][web:9]</td>
    </tr>
    <tr>
      <td>Katy Trail (Dallas)</td>
      <td>Dallas, Texas</td>
      <td>≈3.5 miles</td>
      <td>Urban concrete and soft-surface trail through central Dallas.[web:7]</td>
    </tr>
  </tbody>
</table>

Information gathered from public forums or data available on the internet and portrayed here.