Dayton is around the same size as Valencia.

Valencia is approximately 135 sq km, while Dayton is approximately 145 sq km, making Dayton 7% larger than Valencia.
Tip: This to-scale comparison of Valencia vs. Dayton uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.