Looking for well water testing in Hermosa, SD? Describe your project once and up to five water testing pros who work in Hermosa and Custer County get back to you with a quote. It's free and there is no obligation.
Hermosa is home to about 381 people (2024 Census Bureau estimate), a shrinking community (−2.1% since 2020). With 441 people per sq mi, it is a semi-rural area. Homes on private wells here are responsible for their own water quality.
Hermosa at a glance
- Population (Census Bureau estimate, 2024)
- 381 (−2.1% since 2020)
- Rank in South Dakota
- 138th of 310 cities and towns
- Land area
- 0.9 sq mi
- Population density
- 441 people per sq mi (semi-rural)
- Type
- Town (Hermosa town)
- Main county
- Custer County
What to check before hiring in Hermosa
- Certified lab: in South Dakota, use a lab certified by the state for drinking water.
- Lender panel: ask your lender which tests and who must take the sample.
- Local concerns: the health department knows local issues such as arsenic, nitrates or PFAS.
- Price drivers: the panel, the sampling visit and rush results.
Useful official resources
-
EPA: private wells
Official information and guidance.
-
EPA: protect your home's water
Official information and guidance.
Services available in Hermosa
-
Well water test for a sale or loan
Sampling and lab analysis for the panel a lender or buyer requires.
-
Comprehensive water testing
Broad panel for bacteria, nitrates, metals, PFAS and other contaminants.
Frequently asked questions in Hermosa
How much does well water testing cost in Hermosa, SD?
It depends on the panel and whether sampling is included. Describe your needs: pros who serve Hermosa reply with a quote.
How long do results take?
Bacteria results often in a few days; full panels longer.
Is my water safe to drink meanwhile?
If in doubt, use bottled water until you have the results.
Which water testing pros will contact me?
Up to five independent water testing pros who serve Hermosa and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.