Hardin County
Ecoregion: Southern Great Lakes forests
Temperate Broadleaf & Mixed Forests. Ecoregions: RESOLVE Ecoregions 2017 (Dinerstein et al. 2017) (opens in a new tab), CC BY 4.0 (opens in a new tab)
Watersheds: Auglaize, Blanchard, Sandusky, Upper Great Miami, Indiana, Ohio and Upper Scioto
Land cover: farmland 83%, developed 9%, forest 7%
Elevation: 850 to 1,150 ft, mostly around 970 ft (260–350 m)
Land cover as shares of the land area. Land cover: USGS Annual NLCD, 2025 (opens in a new tab). Elevation: USGS 3D Elevation Program (opens in a new tab)
Warmth so far: Not available yet.
- species with a result
- 15
- records, 2016 to 2025
- 3,535
Hardin County at a glance
Darker weeks have more of a group's species recorded. Shows when people recorded them, not how common they are.
The grey bars show how many records of all species were made here each week, so you can see when recording itself was high or low.
Every species recorded here
230 species
Birds 1

Dragonflies and damselflies 11











Flowering plants 2


Mammals 1

Within its mapped range 215
No qualifying county records yet, but its published range map covers the county.

































Showing 48 of 230
More lists for Hardin County
Missing records do not mean a species is absent. Back to the Ohio map