Genealogy Trails
South Dakotar

Genealogy Trails presents..

Pennington County

South Dakota

History and Genealogy


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This County is available for adoption!

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Online Data

Our goal is helping you find your ancestors by placing data online for the FREE use of all researchers.
We need data - chances are, you have obituaries; birth, marriage and death records; biographies, etc. - RAW data you used to create your family tree.  Please consider contributing those materials.  Anything contributed will remain YOUR property, will be credited to you, and will be promptly removed, should you ever request it.

Email Us if you have contributions.


* County Seat

Unorganized Territory:

Pennington County Map

County Seat: Rapid City
Year Organized: 1875
Square Miles: 2,776

Courthouse info:
315 St. Joseph Street
County Courthouse
Rapid City, SD 57701-2885
Phone: (605) 394-2171
Fax: (605) 394-6833

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