Rapid City Population 2018

Rapid City is a city located in the state of South Dakota. Its location at Rapid Creek is what led to its name. Rapid City serves as the county seat of Pennington County, and it is also the second most populous city in the state with an estimated population of 74,048.

Rapid City History

Settlers originally came to what is now Rapid City in the 1870s after gold was discovered. In 1876, Rapid City was founded under the name “Hay Camp” and was promoted by miners as the “Gateway to the Black Hills.” Later that year, the site of the city was laid out around Rapid Creek. Six blocks were designated for a business center, which was used for selling supplies to miners and pioneers. By the 20th century, the city was becoming known as a regional trade center.

The city really began to grow following World War I with the construction of highways and local efforts that lured in tourists. Mount Rushmore, a popular tourist destination to this day, was started in 1927 and was later completed in 1941. Throughout this time period, the city was keeping the economy afloat through tourism through the Great Depression. However, the tourism industry declined following World War II, although the city still managed to get by due to war-related growth.

The Rapid City Army Air Base (later changed to the Ellsworth Air Force Base) resulted in significant population growth during the 1940s. By the end of the decade, city officials made a plan to expand the city with new schools, a civic center and paved roads, leading to a construction boom during the 1950s. During the 1960s, growth slowed, but development picked up again in the 1970s after the Black Hills Flood killed hundreds and caused $100 million in damage. This led to significant development including the construction of a park, new homes and businesses, a civic center and Central High School.

In the 1980s, the Sioux people filed a lawsuit against the federal government stating that the Black Hills were stolen. The Supreme Court found in favor of the tribe and offered a monetary settlement, but the Sioux continued to push for the return of land including Rapid City. The dispute is still ongoing.

The city also continued to grow in the 1980s as tourism increased, primarily due to the Sturgis Motorcycle Rally, one of the most famous rallies in the world. Today, tourism remains a driver of the economy, although the city has also ventured into other economic sectors including technology, scientific research and medicine.

Rapid City Demographics

Rapid City’s population is over 74,000. The city has a total area of over 55 square miles and has a population density of over 1,226 people per square mile. It is only the 471st most populous city in the United States.

Over 80% of Rapid City’s population is white, while 1.1% is black, 12.4% is Native American, 1% is Asian, and 4.1% are mixed race. Over 4% of the population is of Hispanic or Latino origin. The largest age group is between 25 to 44, accounting for 25.7% of the total population. Nearly 24% of the population is under age 18, while 14.5% are at least 65 years old. There are slightly more female residents than males, making up 50.5% of the population. Approximately 12.7% of the population lives below the federal poverty line.

Rapid City Population Growth

Rapid City has experienced steady growth throughout its history, although it did see a drop in its population at the time of the 1900 census. By 1920, the city’s population was over 5,000, and this number nearly doubled at the time of the 1930 census. By 1950, the city had over 25,000 residents. By 1990, the population exceeded 54,000. Recent estimates indicate that this growth will only continue into the future, as the current count is up 9% from the last census taken in 2010.

Year Population Growth Growth Rate

Rapid City Race Data

Race Population Percentage
American Indian and Alaska Native7,68310.38%
Two or More Races4,5216.11%
Black or African American1,0201.38%
Some Other Race3110.42%
Native Hawaiian and Other Pacific Islander220.03%

Population Pyramid

0k0k0k0k0k Male Population0k0k0k0k0k Female Population8580757065605550454035302520151050

Rapid City Housing Indicators

Indicator Value
Median Number of Rooms (per House)
Houses Without Mortgage
Houses With Mortgage
Vacancy Rate
Median Rent
Median Home Value
Renter-Occupied Units
Owner-Occupied Units
Total Housing Units

This chart shows the employment and labor force participation rates in Rapid City for residents over 16 years of age. The 2015 unemployment rate is 3.5% and the labor force participation rate is 67.8%.

Rapid City Family/Household Indicators

Indicator Value
Unmarried Partner Households (Same Sex)
Unmarried Partner Households (Opposite Sex)
Non Family Households
Female Householder (no husband) Families
Male Householder (no wife) Families
Married Couple Families
Average Family Size
Average Household Size