| Official Name: | Spencer, South Dakota |
| Settlement Type: | City |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Dakota |
| Subdivision Type2: | County |
| Subdivision Name2: | McCook |
| Established Title3: | Incorporated |
| Established Date3: | 1917[1] |
| Unit Pref: | Imperial |
| Area Footnotes: | [2] |
| Area Total Km2: | 0.69 |
| Area Land Km2: | 0.69 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 0.27 |
| Area Land Sq Mi: | 0.27 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 136 |
| Population Density Km2: | 195.83 |
| Population Density Sq Mi: | 507.46 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Coordinates: | 43.7275°N -97.5911°W |
| Elevation Ft: | 1381 |
| Postal Code Type: | ZIP code |
| Postal Code: | 57374 |
| Area Code: | 605 |
| Blank Name: | FIPS code |
| Blank Info: | 46-60060 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1267589 |
Spencer is a city in McCook County, South Dakota, United States. The population was 136 at the 2020 census.[3] The city was almost destroyed by a violent F4 tornado on May 30, 1998 which killed six people.
Spencer was laid out in 1887 when the railroad was extended to that point.[4] The city was named for H. Spencer, a railroad official.[5] A post office has been in operation in Spencer since 1887. Spencer was officially incorporated in 1917.[6]
On May 30, 1998, the most destructive and second deadliest tornado in South Dakota history struck Spencer. It began as a large, dust-cloaked tornado northwest of Farmer in Hanson County, concurrent with the demise of the "Fulton" tornado. Continuing toward the east-southeast, it struck several farmsteads before crossing the Hanson/McCook County line a half mile west-northwest of Spencer. At this time, the tornado was being observed by the OU Doppler on Wheels crew, whose mobile Doppler weather radar data showed up to 264 mph winds in the tornado a few tens of meters above ground level.[7] The population of the town diminished soon after to less than half of what it was previous to the tornado, from 315 to 145 in April 1999, and has since hovered around that mark.
According to the United States Census Bureau, the city has a total area of 0.27sqmi, all land.[8]
As of the census[9] of 2010, there were 154 people, 60 households, and 47 families residing in the city. The population density was 570.4PD/sqmi. There were 77 housing units at an average density of 285.2/sqmi. The racial makeup of the city was 96.8% White, 0.6% African American, and 2.6% from two or more races. Hispanic or Latino of any race were 2.6% of the population.
There were 60 households, of which 30.0% had children under the age of 18 living with them, 66.7% were married couples living together, 11.7% had a female householder with no husband present, and 21.7% were non-families. 20.0% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 2.94.
The median age in the city was 42.7 years. 29.9% of residents were under the age of 18; 1.9% were between the ages of 18 and 24; 19.4% were from 25 to 44; 24.6% were from 45 to 64; and 24% were 65 years of age or older. The gender makeup of the city was 48.1% male and 51.9% female.
As of the census of 2000, there were 157 people, 64 households, and 44 families residing in the city. The population density was 596.7sp=usNaNsp=us. There were 73 housing units at an average density of 277.4sp=usNaNsp=us. The racial makeup of the city was 98.73% White, 0.64% Native American and 0.64% Asian.
There were 64 households, out of which 31.3% had children under the age of 18 living with them, 59.4% were married couples living together, 6.3% had a female householder with no husband present, and 31.3% were non-families. 31.3% of all households were made up of individuals, and 20.3% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 3.05.
In the city, the population was spread out, with 28.7% under the age of 18, 6.4% from 18 to 24, 25.5% from 25 to 44, 21.7% from 45 to 64, and 17.8% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 86.9 males. For every 100 females age 18 and over, there were 80.6 males.
The median income for a household in the city was $21,250, and the median income for a family was $34,688. Males had a median income of $26,250 versus $22,500 for females. The per capita income for the city was $13,164. About 7.0% of families and 11.4% of the population were below the poverty line, including 14.6% of those under the age of eighteen and 14.8% of those 65 or over.