Dayton, OhioFree · Independent · Updated every day

The Despoiler

Made in Dayton, spent in Dayton

Section

Maps

The Miami Valley, then and now: what used to be here, and what the land is zoned for today.

Dayton and the Miami Valley

Map · Then

Miami Valley Mapped History

What used to be here? Thousands of addresses from Green Book listings and Dayton newspaper ads, 1850–1955, placed on today's streets within 15 miles of downtown. Every pin links to the original page. Open the map →

Map · Now

Miami Valley Zoning Map

What is this land zoned for, and what changed since 2015? Search any address within 15 miles of downtown Dayton, see about 32,900 acres whose zoning class changed, and every 2026 local data center ban or moratorium. Open the map →