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South Dakota · Black Hills · #201 Most Populous County in the US
Pennington County Government Offices
Rapid City - the gateway to Mount Rushmore, Crazy Horse Memorial, Custer State Park, and the Black Hills of South Dakota. Where Great Plains meet the mountains, and Ellsworth Air Force Base anchors a proud military community. No state income tax, no inheritance tax, and some of the strongest trust laws in America. Property tax, courts, public records, probate, and senior services for Pennington County residents.
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Pennington County's assessment ratio means effective tax rates are low — but incorrect appraisals still cost money. Ownwell manages the appeal with no upfront cost.
Office: Rapid City-Pennington County Emergency Management – 130 Kansas City Street, Ste. 130A, Rapid City, SD 57701 | (605) 394-2186
Services: Joint agency created in 1962 (originally Civil Defense) under a 1978 Joint Powers Agreement between the City of Rapid City and Pennington County; oversees planning, response, recovery, and mitigation for Rapid City, Box Elder, New Underwood, Wall, Hill City, Keystone, and the county; governed by a 7-member Emergency Management Users Board including the Sheriff, Rapid City Police/Fire Chiefs, and a National Guard liaison.
Related: Pennington County Sheriff’s Office; ESCC 911 (non-emergency dispatch).
Roads & Utilities
ROADS & TRANSPORTATION
Roads: I-90 serves Rapid City, the county seat and South Dakota’s second-largest city, on the eastern slope of the Black Hills; SD-244 leads to Keystone and Mount Rushmore
Transit: Rapid City has local public transit options – contact the City of Rapid City for current routes.
Business & Permits
BUILDING & PERMITS
Office: Pennington County Planning Department – maintains and enforces planning, zoning, building permits, and ordinances within the county
Notes: City of Rapid City issues its own separate building permits at the City permit desk, Mon–Fri 7:30 AM–4 PM.
Veterans Services
VETERANS SERVICES
County VSO: Pennington County Veterans Services – assists veterans, dependents, and survivors applying for federal and state veterans’ benefits, Rapid City, SD
Libraries
LIBRARIES
System: Rapid City Public Library – 610 Quincy Street, Rapid City, SD 57701
Services: Free for all Pennington County residents; library services in Rapid City trace back to 1879, when local women organized a volunteer reading room with $45 and donated books; an 1881 territorial charter led to construction of Library Hall, one of the earliest library buildings in the Dakota Territory.
Parks & Recreation
PARKS & RECREATION
Key Assets: Pennington County is genuinely and world-famously home to MOUNT RUSHMORE NATIONAL MEMORIAL, South Dakota’s most iconic landmark and one of the most recognizable monuments anywhere in the United States; located in the Black Hills near the town of Keystone, the colossal sculpture features the 60-foot-tall granite faces of Presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln, carved across 250 feet of granite ridge; the mountain itself, known to the Lakota as Tȟuŋkášila Šákpe (“Six Grandfathers”), held deep spiritual significance long before the monument’s creation, having been part of a traditional route that Lakota spiritual leader Black Elk once walked on a journey culminating at nearby Harney Peak; the idea for the memorial was first conceived in 1923 by South Dakota state historian Doane Robinson as a way to promote tourism in the region, and in 1924 he convinced sculptor Gutzon Borglum to travel to the Black Hills to bring the vision to life; Borglum, who had previously worked on the Confederate Memorial Carving at Stone Mountain, Georgia before a dispute with officials there, ultimately chose Mount Rushmore over the more fragile granite spires known as the Needles, reportedly declaring upon seeing the site, “America will march along that skyline”; construction ran from 1927 to 1941, employing around 400 workers, with chief carver Luigi del Bianco – an Italian immigrant whose contributions went largely uncredited for decades – playing a central role in the sculpture’s fine detailing; Gutzon Borglum died before the project’s completion, and his son Lincoln Borglum finished the work in the final year; today the 1,278-acre National Park Service site draws more than 2.4 million visitors annually and remains free to enter, with only parking fees applying
Notes: Mount Rushmore’s genuine, extensively documented history – from Doane Robinson’s tourism vision to the mountain’s deep prior significance to the Lakota as Six Grandfathers – is presented here factually, reflecting both the memorial’s celebrated status and its complex history on land sacred to the Lakota people.
GIS & Maps
GIS & MAPS
GIS Portal: Pennington County GIS – accessible via pennco.org
Parcel Search: Pennington County Equalization Department – Rapid City, SD
Addressing/911: Coordinated through Rapid City-Pennington County Emergency Management
Animal Services
ANIMAL SERVICES
Facility: Humane Society of the Black Hills – 1820 E Saint Patrick St, Rapid City, SD 57703 | (605) 394-4170 | Hours: Mon/Tue/Thu/Fri 11 AM–5 PM, Sat/Sun 11 AM–4 PM (closed Wed)
Services: Open-admission shelter serving Pennington County and surrounding areas; animal control services; pet adoption, surrender, and reclaim; roughly 4,000 animals managed annually.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Environmental Complaints: South Dakota Department of Agriculture and Natural Resources (DANR) – danr.sd.gov
Notes: Contact your specific municipality directly for current refuse collection and recycling program details. Pennington County’s Pets & Livestock emergency preparedness page recommends pet carriers, ID tags, and a buddy system plan for evacuating animals during disasters, as public shelters may not accept pets.
NOTES
Pennington County’s seat, Rapid City, is genuinely the gateway to Mount Rushmore National Memorial, one of America’s most iconic landmarks, carved into a mountain held sacred by the Lakota as Six Grandfathers. All contact information above was sourced from official county, city, library, and shelter pages as of this writing; phone numbers and hours should be reconfirmed directly with the relevant office before a visit.
About Pennington County
Pennington County is home to Rapid City – the commercial, cultural, and governmental hub of western South Dakota and the northern Great Plains, and the gateway to one of America’s most extraordinary concentrations of natural and cultural landmarks.
Mount Rushmore National Memorial – the carved granite faces of Washington, Jefferson, Theodore Roosevelt, and Lincoln rising 60 feet above the Black Hills – is South Dakota’s defining icon and one of the most recognized images in American history. Sculptor Gutzon Borglum began carving in 1927; the project was largely completed by 1941 at a total cost of approximately $1 million (funded primarily by federal appropriations). Mount Rushmore draws approximately 3 million visitors annually and is the economic engine of the entire Black Hills region.
The Crazy Horse Memorial – a private, non-profit effort begun in 1948 by sculptor Korczak Ziolkowski and now continued by his family – is carving a tribute to Oglala Lakota warrior Crazy Horse from the adjacent mountain. When complete, Crazy Horse will dwarf Rushmore; the face alone was unveiled in 1998 and is 87 feet tall. The project continues without federal funding by deliberate choice of the Ziolkowski family.
Custer State Park – one of the largest state parks in the United States – protects 71,000 acres of Black Hills ponderosa pine forest, meadows, and granite formations, home to one of the largest free-roaming American bison herds in the world (approximately 1,300 animals). The Needles Highway and Iron Mountain Road are among the most spectacular mountain drives in America.
Ellsworth Air Force Base – home of the 28th Bomb Wing operating the B-21 Raider (the Air Force’s newest stealth bomber, which began arriving at Ellsworth in 2023) and previously the B-1B Lancer – is one of the most strategically significant bomber bases in the Air Force inventory and a major Pennington County employer.
Rapid City (population ~80,000) has a vibrant downtown anchored by the Presidents Park (life-size bronze statues of all US presidents lining the streets), the Dahl Arts Center, and a craft brewery scene. The city is the regional healthcare, retail, and professional services hub for a vast catchment area extending into Wyoming, Nebraska, and Montana.
County government is a five-member Board of County Commissioners with a County Auditor serving administrative functions. Separately elected: Auditor, Coroner, Register of Deeds, Sheriff, State’s Attorney, and Treasurer.
Heritage | Rapid City serves as the primary gateway to Mount Rushmore National Memorial, the iconic sculpture of four presidents carved into the Black Hills granite, and the city’s downtown “City of Presidents” project features life-size bronze statues of every U.S. president lining its historic streets; the nearby Ellsworth Air Force Base and the South Dakota School of Mines and Technology anchor significant military and technical education presence Outdoors | Mount Rushmore, the Crazy Horse Memorial (an ongoing mountain carving honoring the Lakota leader), and the surrounding Black Hills National Forest offer extensive hiking, scenic drives including the Needles Highway, and abundant wildlife viewing throughout the region Notable | Mount Rushmore remains one of the most visited national monuments in the country, and the Crazy Horse Memorial, still under construction since 1948, continues to draw visitors interested in the massive ongoing sculpture project Library | Rapid City Public Library serves the county’s regional hub city and surrounding Black Hills communities
All Services
Browse every category and topic available for this county.
South Dakota assesses property at 85% of true and full market value. The Pennington County Director of Equalization (130 Kansas City Street, Suite 250, Rapid City, 605-394-2175) determines all property values. Annual reassessments are conducted.
Owner-occupied assessment reduction: Owner-occupied primary residences receive a credit reducing the assessment. Apply by March 15 through the Director of Equalization.
The appeal process:
File an appeal with the Pennington County Board of Equalization by the third Tuesday in March. If unsatisfied, appeal to the South Dakota Office of Hearing Examiners and then to the South Dakota Circuit Court.
Senior Assessment Freeze: Qualifying homeowners age 70+ with household income at or below $40,600 (2025) who have owned and occupied the property for at least three years may have their assessed value frozen. Apply through the Director of Equalization by April 1.
No South Dakota income, estate, or inheritance tax. South Dakota trust laws (dynasty trusts, DAPTs, directed trusts, trust privacy) are the strongest in the nation – see Minnehaha County entry for full detail.
OWNWELL CTA: Pennington County appeal deadline third Tuesday in March. Owner-occupied credit reduces assessed value. Senior freeze at 70+ with income ≤$40,600. No SD income, estate, or inheritance tax. Ownwell manages the appeal with no upfront cost.
Recommended
Pennington County appeal deadline third Tuesday in March. Owner-occupied credit reduces assessed value. Senior freeze at 70+ with income ≤$40,600. No SD income, estate, or inheritance tax. Ownwell manages the appeal with no upfront cost.
Courts & Legal
The Pennington County Circuit Court (Seventh Judicial Circuit) at 315 Saint Joseph Street, Rapid City (605-394-2571) handles all civil, criminal, family, and probate matters. The Pennington County Clerk of Courts at the same address maintains all court records. The Pennington County Register of Deeds (605-394-2174) at 130 Kansas City Street maintains all land records – searchable online at penningtoncounty.org.
No South Dakota estate or inheritance tax. South Dakota recognizes Transfer on Death deeds.
Ellsworth AFB military estate planning: The B-21 Raider crews and support personnel at Ellsworth require current SGLI designations, powers of attorney, and SBP elections. The Ellsworth Legal Assistance Office provides free estate planning services for eligible personnel.
Black Hills tourism and hospitality business estate planning: Pennington County’s large tourism economy – hotels, restaurants, outfitters, and Mount Rushmore-adjacent businesses – creates small business succession challenges. Tourism business goodwill is highly seasonal and location-dependent, requiring specific valuation and succession approaches.
Lakota Nation and tribal land: Pennington County borders the Pine Ridge Indian Reservation and Rapid City’s Indigenous community is significant. Trust land held by tribal members is not subject to county property tax. Estate planning for Native American residents may involve both tribal law (for trust land) and South Dakota law (for fee land), requiring attorneys knowledgeable in both jurisdictions.
Senior Services: The Pennington County Senior Services / West River Area Agency on Aging (605-394-6163) at 300 Kansas City Street, Rapid City coordinates senior centers, home-delivered meals, transportation, SHIINE Medicare counseling, caregiver support, Adult Protective Services, and connections to South Dakota Medicaid long-term care programs.
CIRCUIT COURT
Address: 315 St Joseph St, Rapid City, SD 57701
Phone: (605) 394-2575
Website: ujs.sd.gov/counties/pennington
Marriage & Vital Records
Marriage licenses, divorce records, and birth & death certificates are handled by the following office(s):
CLERK OF COURTS
315 St Joseph St, Rapid City, SD 57701
(605) 394-2575
Genealogy
County-level record sources
Pennington County Clerk of Courts, Rapid City (probate/estate case files – see Probate section above).
The 1922 Pennington County Courthouse, NRHP-listed, has served as the seat of county government since its construction.
Local societies
No dedicated Pennington County genealogical society was confirmed in available directories.
Probate & Estate
Losing someone and having to deal with courts and paperwork at the same time is hard. This section won’t make that easier, but it should tell you what to expect, what it costs, and where to go – so at least you’re not walking in blind.
Where to go
Clerk of Courts, Pennington County 315 St. Joseph Street, Rapid City, SD 57701 (605) 394-2575
Pennington County was created January 11, 1875 and organized April 19, 1877, named for John L. Pennington, in the Black Hills of western South Dakota, seated in Rapid City – the state’s second most populous county. The 1922 Pennington County Courthouse, Beaux Arts in style, is listed on the National Register of Historic Places.
Step 1: figure out which path applies
South Dakota HAS adopted the Uniform Probate Code (Articles I, II, III, IV, and VIII, effective July 1, 1995). Probate proceedings are handled by the Circuit Court in the county where the decedent lived, generally administered under the supervision of the Clerk of Courts.
Small Estate Affidavit – Collection of Personal Property (SDCL § 29A-3-1201) – available when the total gross value of the entire estate, wherever located, less liens and encumbrances, does not exceed $50,000. At least 30 days must have passed since death, no petition for appointment of a personal representative is pending or has been granted anywhere, and the decedent had no outstanding debts to the Department of Social Services for medical assistance or institutional/nursing home care. A separate affidavit exists for South Dakota real estate under $50,000, which must also be filed with the Register of Deeds where the property sits.
Informal Probate – the most common track in South Dakota, used when heirs and beneficiaries are getting along and no disputes are expected.
Unsupervised Formal Probate and Supervised Formal Probate – for more complex or contested situations.
Step 2: filing for administration
The personal representative (or an interested party) files an application or petition with the Clerk of Courts in Pennington County, along with the original will if one exists.
For informal probate, the clerk reviews the application administratively and issues Letters Testamentary or Letters of Administration without a hearing in most cases.
Formal proceedings require notice to interested parties and, if contested, a hearing before the circuit judge.
The personal representative gathers and inventories assets, notifies creditors, and pays valid debts and expenses.
After debts and taxes are satisfied, remaining assets are distributed according to the will or South Dakota’s intestacy statutes (SDCL Chapter 29A-2).
The estate is formally closed by filing a sworn closing statement or a petition for formal order of discharge (SDCL § 29A-3-1003).
What it costs
Court costs are set by law and paid to the Clerk of Courts; confirm current fees with Pennington County directly.
South Dakota has NO state estate tax and NO state inheritance tax. Only the federal estate tax may apply, and only to very large estates.
A surviving spouse cannot be disinherited in South Dakota unless the spouse agrees.
Probate filings, estate administration, and guardianship matters are handled by the following office(s):
Public Safety & Arrests
Arrest records, inmate search, and law enforcement services are handled by the following office(s):
SHERIFF
300 Kansas City St, Rapid City, SD 57701
(605) 394-6113
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
AUDITOR (ELECTIONS)
130 Kansas City St, Rapid City, SD 57701
(605) 394-2153
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Health & Human Services
130 Kansas City St, Rapid City, SD 57701
(605) 394-6605
Social Services
130 Kansas City St, Rapid City, SD 57701
(605) 394-6605
Public Health Information
PUBLIC HEALTH
Office: Pennington County Human Services Department – provides emergency assistance for eligible individuals per county-approved guidelines and state statutes
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