Castlewood, South Dakota

Castlewood was platted in 1881 when the railroad was extended to that point.{{cite book|url=https://books.google.com/books?id=OspBAQAAMAAJ&pg=PA53 |title=A History of the Origin of the Place Names Connected with the Chicago & North Western and Chicago, St. Paul, Minneapolis & Omaha Railways |author=Chicago and North Western Railway Company |year=1908 |page=53}} The city was named Castlewood after a place mentioned in the 1857 novel The Virginians by William Makepeace Thackeray. A post office has been in operation in Castlewood since September 27, 1882.{{cite web|url=http://www.postalhistory.com/postoffices.asp?task=display&state=SD&county=Hamlin |title=Hamlin County |publisher=Jim Forte Postal History |accessdate=February 28, 2015}}

A destructive EF2 tornado hit the town on May 12, 2022, destroying several structures, damaging homes, and injuring one person.{{cite report|author=National Weather Service in Aberdeen, South Dakota|title=NWS Damage Survey for 05/12/22 Tornado Event|url=https://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSABR&e=202205140054|publisher=Iowa Environmental Mesonet|date=May 13, 2022|accessdate=May 13, 2022}}

Castlewood is located along the Big Sioux River.DeLorme (2001), South Dakota Atlas & Gazetteer, Yarmouth, Maine: DeLorme {{ISBN|0-89933-330-3}}

According to the United States Census Bureau, the city has a total area of {{convert|1.15|sqmi|sqkm|2}}, all land.

Castlewood has a dry-winter humid continental climate (Köppen Dwb), with four distinct seasons and a high seasonal temperature variation. The winters are long and harsh, with an annual average extreme minimum temperature of -28.1 °F (-33.4 °C), placing it within the 4a USDA Hardiness Zone (-30°F to -25°F) or (-34.4°C to -31.7°C).{{cite web|url=https://www.plantmaps.com/en/us/f/hz/state/south-dakota/plant-hardiness-zones |publisher=Plantmaps.com |title=South Dakota Hardiness Zones Map - 2023 |access-date=January 15, 2024}} Summers are warm, with an average temperature of 69.4 °F (20.8 °C) in July, and experience a high level of precipitation compared to the dry winters.

{{Weather box

|location = Castlewood, South Dakota, 1991–2020 normals, 1893-2023 extremes: 1685ft (514m)

|single line = Yes

|Jan record high F = 65

|Feb record high F = 67

|Mar record high F = 84

|Apr record high F = 97

|May record high F = 106

|Jun record high F = 108

|Jul record high F = 109

|Aug record high F = 105

|Sep record high F = 103

|Oct record high F = 91

|Nov record high F = 79

|Dec record high F = 71

|year record high F =

|Jan avg record high F = 44.0

|Feb avg record high F = 48.9

|Mar avg record high F = 64.0

|Apr avg record high F = 80.2

|May avg record high F = 86.1

|Jun avg record high F = 91.0

|Jul avg record high F = 94.5

|Aug avg record high F = 92.4

|Sep avg record high F = 87.6

|Oct avg record high F = 79.7

|Nov avg record high F = 62.4

|Dec avg record high F = 44.4

|year avg record high F = 95.8

|Jan high F = 20.4

|Feb high F = 25.5

|Mar high F = 37.9

|Apr high F = 52.6

|May high F = 65.4

|Jun high F = 75.9

|Jul high F = 80.6

|Aug high F = 78.8

|Sep high F = 70.9

|Oct high F = 56.3

|Nov high F = 39.1

|Dec high F = 25.4

|year high F =

|Jan mean F = 11.0

|Feb mean F = 15.1

|Mar mean F = 28.1

|Apr mean F = 41.4

|May mean F = 54.3

|Jun mean F = 64.9

|Jul mean F = 69.4

|Aug mean F = 67.3

|Sep mean F = 58.5

|Oct mean F = 44.5

|Nov mean F = 29.5

|Dec mean F = 16.7

|year mean F =

|Jan low F = 1.7

|Feb low F = 4.8

|Mar low F = 18.3

|Apr low F = 30.3

|May low F = 43.2

|Jun low F = 53.8

|Jul low F = 58.2

|Aug low F = 55.7

|Sep low F = 46.1

|Oct low F = 32.7

|Nov low F = 19.9

|Dec low F = 8.1

|year low F =

|Jan avg record low F = -22.7

|Feb avg record low F = -20.1

|Mar avg record low F = -5.9

|Apr avg record low F = 15.3

|May avg record low F = 27.6

|Jun avg record low F = 39.8

|Jul avg record low F = 45.3

|Aug avg record low F = 41.2

|Sep avg record low F = 28.4

|Oct avg record low F = 15.5

|Nov avg record low F = -0.2

|Dec avg record low F = -16.3

|year avg record low F = -28.1

|Jan record low F = −41

|Feb record low F = −44

|Mar record low F = −29

|Apr record low F = -5

|May record low F = 12

|Jun record low F = 24

|Jul record low F = 33

|Aug record low F = 30

|Sep record low F = 9

|Oct record low F = -4

|Nov record low F = -23

|Dec record low F = −37

|year record low F =

|precipitation colour = green

|Jan precipitation inch = 0.52

|Feb precipitation inch = 0.63

|Mar precipitation inch = 1.18

|Apr precipitation inch = 2.06

|May precipitation inch = 3.87

|Jun precipitation inch = 3.98

|Jul precipitation inch = 3.45

|Aug precipitation inch = 2.82

|Sep precipitation inch = 3.06

|Oct precipitation inch = 1.93

|Nov precipitation inch = 0.76

|Dec precipitation inch = 0.52

|year precipitation inch =

|Jan snow inch = 4.6

|Feb snow inch = 4.9

|Mar snow inch = 5.4

|Apr snow inch = 2.6

|May snow inch = 0.0

|Jun snow inch = 0.0

|Jul snow inch = 0.0

|Aug snow inch = 0.0

|Sep snow inch = 0.0

|Oct snow inch = 0.0

|Nov snow inch = 3.2

|Dec snow inch = 7.4

|year snow inch =

|unit precipitation days = 0.01 in

|Jan precipitation days = 3.8

|Feb precipitation days = 3.4

|Mar precipitation days = 4.4

|Apr precipitation days = 7.1

|May precipitation days = 9.5

|Jun precipitation days = 9.9

|Jul precipitation days = 8.1

|Aug precipitation days = 7.3

|Sep precipitation days = 6.6

|Oct precipitation days = 5.5

|Nov precipitation days = 3.3

|Dec precipitation days = 4.9

|unit snow days = 0.1 in

|Jan snow days = 3.8

|Feb snow days = 2.7

|Mar snow days = 2.2

|Apr snow days = 0.8

|May snow days = 0.0

|Jun snow days = 0.0

|Jul snow days = 0.0

|Aug snow days = 0.0

|Sep snow days = 0.0

|Oct snow days = 0.1

|Nov snow days = 2.2

|Dec snow days = 3.6

|source 1 = NOAA (1981-2010 snowfall)

{{cite web

|url = https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&startDate=0001-01-01&endDate=9996-12-31&stations=USC00391519&format=pdf

|title = Castlewood, South Dakota 1991-2020 Monthly Normals

|access-date = January 15, 2024

}}

{{cite web

|url = https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly&startDate=0001-01-01&endDate=9996-12-31&stations=USC00391519&format=pdf

|title = Castlewood, South Dakota 1981-2010 Monthly Normals

|access-date = January 15, 2024

}}

|source 2 = XMACIS2 (temp records & monthly max/mins)

{{cite web

|url = https://xmacis.rcc-acis.org/

|publisher = National Oceanic and Atmospheric Administration

|title = xmACIS

|access-date = January 15, 2024

}}

}}

{{US Census population

|1900= 430

|1910= 594

|1920= 582

|1930= 500

|1940= 493

|1950= 498

|1960= 500

|1970= 523

|1980= 557

|1990= 549

|2000= 666

|2010= 627

|2020= 698

|estyear=2022

|estimate=707

|estref={{cite web|url=https://www.census.gov/data/tables/time-series/demo/popest/2020s-total-cities-and-towns.html |date=February 27, 2024|title=City and Town Population Totals: 2020–2022|publisher=United States Census Bureau|accessdate=February 27, 2024}}

|align-fn=center

|footnote=U.S. Decennial Census{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=Census of Population and Housing|publisher=United States Census Bureau|accessdate=June 4, 2015}}
2020 Census

}}

As of the 2020 census, there were 698 people and 270 households, and 180 families residing in the town.{{Cite web|title=US Census Bureau, Table P16: Household Type |url=https://data.census.gov/table?q=Castlewood%20city,%20South%20Dakota%20p16&y=2020 |access-date=February 27, 2024 |publisher=United States Census Bureau}} There were 296 housing units.

As of the 2010 census, there were 627 people in 260 households, including 158 families, in the city. The population density was {{convert|545.2|PD/sqmi|PD/km2|1}}. There were 292 housing units at an average density of {{convert|253.9|/sqmi|/km2|1}}. The racial makeup of the city was 96.5% White, 0.5% African American, 0.5% Native American, 0.2% Asian, 1.4% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 1.8%.

Of the 260 households 35.4% had children under the age of 18 living with them, 50.4% were married couples living together, 6.9% had a female householder with no husband present, 3.5% had a male householder with no wife present, and 39.2% were non-families. 33.5% of households were one person and 17.6% were one person aged 65 or older. The average household size was 2.41 and the average family size was 3.16.

The median age was 36.2 years. 28.2% of residents were under the age of 18; 7.4% were between the ages of 18 and 24; 26% were from 25 to 44; 24% were from 45 to 64; and 14.5% were 65 or older. The gender makeup of the city was 50.2% male and 49.8% female.

As of the 2000 census, there were 666 people in 253 households, including 185 families, in the city. The population density was {{convert|585.9|PD/sqmi|PD/km2|sp=us|adj=off}}. There were 265 housing units at an average density of {{convert|233.1|/sqmi|/km2|sp=us|adj=off}}. The racial makeup of the city was 98.95% White, 0.45% Native American, and 0.60% from two or more races. Hispanic or Latino of any race were 0.30%. 38.1% were of German, 18.4% Norwegian, 9.9% Dutch, 6.8% American, 6.4% Irish and 5.6% English ancestry.

Of the 253 households 40.3% had children under the age of 18 living with them, 60.5% were married couples living together, 7.9% had a female householder with no husband present, and 26.5% were non-families. 24.1% of households were one person and 14.2% were one person aged 65 or older. The average household size was 2.57 and the average family size was 3.06.

The age distribution was 28.5% under the age of 18, 8.1% from 18 to 24, 26.6% from 25 to 44, 20.6% from 45 to 64, and 16.2% 65 or older. The median age was 35 years. For every 100 females, there were 94.7 males. For every 100 females age 18 and over, there were 91.9 males.

The median income was $36,607 and the median income for a family was $41,806. Males had a median income of $29,688 versus $20,750 for females. The per capita income for the city was $17,682. About 7.7% of families and 7.1% of the population were below the poverty line, including 12.0% of those under age 18 and 6.7% of those age 65 or over.

• Marv Heemeyer; born here, and went on a bulldozer rampage/suicide in Colorado
• Kristi Noem – Governor of South Dakota (2019–2025) and U.S. Representative (2011–2019)

• List of cities in South Dakota

{{Reflist|22em}}

{{commons category|Castlewood, South Dakota}}

• [https://www.castlewoodcity.com/ City of Castlewood – Official Website]

{{Hamlin County, South Dakota}}

{{Authority control}}

Category:Cities in South Dakota

Category:Cities in Hamlin County, South Dakota

Category:Watertown, South Dakota micropolitan area

Category:1882 establishments in Dakota Territory

Category:Populated places established in 1882