Looking for a sinkhole investigation in Clarks Summit, PA? Describe your project once and up to five geotechnical engineers who work in Clarks Summit and Lackawanna County get back to you with a quote. It's free and there is no obligation.
Clarks Summit is home to about 5,089 people (2024 Census Bureau estimate), a stable community (+0.4% since 2020). With 3,210 people per sq mi, it is a suburban area. Karst geology makes sinkhole activity a real concern for some properties here.
Clarks Summit at a glance
- Population (Census Bureau estimate, 2024)
- 5,089 (+0.4% since 2020)
- Rank in Pennsylvania
- 191st of 1,013 cities and towns
- Land area
- 1.6 sq mi
- Population density
- 3,210 people per sq mi (suburban)
- Type
- Borough (Clarks Summit borough)
- Main county
- Lackawanna County
What to check before hiring in Clarks Summit
- License: in Pennsylvania, investigations are signed by a licensed engineer or geologist.
- Insurance: read your policy's sinkhole and ground collapse wording before you file.
- Report: ask for radar results, boring logs and clear conclusions.
- Price drivers: site size, number of borings and testing.
Useful official resources
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USGS: sinkholes
Official information and guidance.
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Florida Office of Insurance Regulation
Official information and guidance.
Services available in Clarks Summit
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Sinkhole investigation
Geotechnical investigation with ground penetrating radar and borings, and an engineer's report.
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Sinkhole repair design
Engineering design and oversight of grouting or underpinning repairs.
Frequently asked questions in Clarks Summit
How much does a sinkhole investigation cost in Clarks Summit, PA?
It depends on the site and the testing. Describe your property: engineers who serve Clarks Summit reply with a quote.
How long does it take?
Often a few weeks including field work and report.
Can a sinkhole be repaired?
Often yes, by grouting or underpinning designed by an engineer.
Which geotechnical engineers will contact me?
Up to five independent geotechnical engineers who serve Clarks Summit 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.