Numenta Anomaly Benchmark (NAB)
Dataset and scoring for detecting anomalies in streaming data
It is comprised of over 50 labeled real-world and artificial time-series data files plus a novel scoring mechanism designed for real-time applications. All of the data and code is fully open-source, with extensive documentation, and a scoreboard of anomaly ...
You may need to clarify your question to be more specific. But, if I understand correctly, you can filter by Organization Type and select "county government" on the left side of the page. https://catalog.data.gov/dataset#sec-organization_type