The next Orange County Fair in Costa Mesa, California (the OC Fair) is scheduled for July 17 to August 16, 2026.

Quick Scoop

  • Location: OC Fair & Event Center, Costa Mesa, California.
  • 2026 Fair dates: July 17 – August 16, 2026.
  • Length: 23 days of rides, food, concerts, and exhibitions.

If you were instead asking about the Orange County Fair in Middletown, New York , that one typically runs in late July (for 2025 it’s listed as open daily July 23 – August 2), so expect a similar late-July window each year, but always confirm that year’s dates on their official site before you go.

Key Details in HTML Table

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<table>
  <thead>
    <tr>
      <th>Fair</th>
      <th>Location</th>
      <th>Next announced dates</th>
      <th>Notes</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Orange County Fair (OC Fair)</td>
      <td>Costa Mesa, California [web:3]</td>
      <td>July 17 – August 16, 2026 [web:3][web:5][web:7]</td>
      <td>23-day summer fair with rides, food, and concerts [web:3][web:5]</td>
    </tr>
    <tr>
      <td>Orange County Fair (NY)</td>
      <td>Middletown, New York [web:1][web:9]</td>
      <td>Example: July 23 – August 2, 2025 (future years similar timing; check site) [web:1]</td>
      <td>New York’s oldest fair, held annually in July [web:1][web:9]</td>
    </tr>
  </tbody>
</table>

SEO mini-note: If you’re searching “when is the Orange County Fair,” add “Costa Mesa” or “Middletown NY” so you land on the correct fair’s latest news and official date announcements.

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