I went to this website (USGS board on geographic names), downloaded each state's information and then filtered the rows with "county" in the place name. Each state's URL can be programatically manipulated easily.
Physionet is an online repository of EHR databases.
For example, here are some (credentialed access) deidentified ICU datasets:
All the climate data of US are available on the National Climatic Data Center, under the National Oceanic and Atmospheric Administration (NOAA). You can get county, city or state based rainfall, wind etc. data of both recent and historical times.
Data link: https://www.ncdc.noaa.gov/cdo-web/search
Dothub provides a list of US Business entities parsed from official registries https://www.dolthub.com/repositories/dolthub/us-businesses/data/master
Just use the following SQL query.
where state_registered = 'ME'
Disclaimer: I have no relations with DoltHub, Inc.
Unlikely, but... I would suggest looking at some complex life simulation games. Probably some of them are open-sourced and have open data with objects inside.
Still, It's too simplified to measure common objects this way.