Personal loans in Castlewood, SD
Lenders active in Castlewood report to a South Dakota supervisor, identified in the sourced rows below.
With roughly 706 residents, Castlewood is a small community, and the lending rules its borrowers live under are written in South Dakota, not by the city. Castlewood is home to roughly 706 people and stands 86th by size out of 309 Census places in South Dakota. Castlewood added about 1.3% to its population between the 2020 base and the 2023 estimate. Get pre-qualified with several lenders, then compare APR rather than the headline rate for a Castlewood loan. The closest larger place is Estelline, SD about 12 miles away.
Borrowing in Castlewood: the local picture
The figures below are Castlewood's own — Census population, land area and coordinates — followed by the South Dakota rules.
- Population: 706 people, a figure that places Castlewood 86th among the 309 Census places in South Dakota (US Census Bureau, Vintage 2023).
- Population trend: The 2020-to-2023 change is positive, near 1.3%.
- Change in people: the 2020-to-2023 comparison is a gain of about 9 residents.
- Size percentile: roughly 72% of South Dakota's places have fewer residents than Castlewood's 706.
- Density: roughly 614 residents per square mile, spread over 1.1 sq mi of land.
- Land area: Castlewood covers 1.1 square miles, the 88th-largest area among South Dakota's 309 places.
- State share: roughly 0.1% of South Dakota's residents live in Castlewood (706 people).
- National standing: Castlewood ranks 11,770th of 19,457 US places.
- Growth in South Dakota: Castlewood stands 102nd by percentage change from 2020 to 2023, among 309 places.
- Versus South Dakota: the state average change is +0.9%, while Castlewood moved 1.3%.
- Density rank: Castlewood is the 150th most densely settled place in South Dakota.
- Density in context: Castlewood's 614 people per square mile sit against a South Dakota median of 581.
- Location: mapped by the US Census Bureau at 44.7242, -97.0309.
- Nearest larger cities: Estelline (12 mi); Watertown (14 mi); Clear Lake (17 mi); Arlington (25 mi); Volga (28 mi). Living near a larger metro rarely changes what is available in Castlewood.
- Smaller places close by: Hayti (10 mi); Kranzburg (13 mi); Lake Norden (13 mi).
- Smaller neighbours: 59 places smaller than Castlewood sit within 50 miles.
- Within 100 miles: 78 places are larger than Castlewood.
Castlewood on the map
Castlewood covers about 1.1 square miles of land (Census Gazetteer); no significant water area is recorded inside its boundaries. With 706 residents, the land area yields roughly 614 people per square mile. The largest place in South Dakota, Sioux Falls, lies about 83 miles away. Castlewood has 16 larger places within a 50-mile radius. The 100-mile radius contains 78 larger places.
Castlewood in state context
Within South Dakota, Castlewood holds roughly 0.1% of all residents, the 86th-largest share among 309 places. On the 2020-to-2023 trend, Castlewood stands 102nd among South Dakota's 309 places — roughly the 67th percentile. Its roughly 614 residents per square mile place it 150th among South Dakota's places. In land area, Castlewood ranks 88th among South Dakota's 309 places.
What South Dakota law requires in Castlewood
Read the table as a lender's compliance picture for Castlewood: the rule, the sourced figure, the publisher and the date.
| Rule | Detail | Source |
|---|---|---|
| State lending regulator | South Dakota Division of Banking (Department of Labor and Regulation) Source says: "The Division of Banking is charged with the regulation and supervision of state chartered and licensed financial institutions." | South Dakota Division of Banking (Department of Labor and Regulation) as of 2026-09-16 |
| Maximum legal interest rate (usury cap) | No general maximum/usury restriction when the rate is set by written agreement; specific caps elsewhere in the code apply (e.g., 36% for licensed money lenders). Source says: "no maximum interest rate or charge, or usury rate restriction... if they establish the interest rate or charge by written agreement" (SDCL 54-3-1.1). | South Dakota Legislature (South Dakota Codified Laws) as of 2026-09-16 |
| Payday lending status | Legal for licensed money lenders (including payday and title lenders) but capped at 36% APR including all fees and charges; violations are a Class 1 misdemeanor and loans are void. Source says: "no licensee may contract for or receive finance charges pursuant to a loan in excess of an annual rate of thirty-six percent" (SDCL 54-4-44); "A violation of this section is a Class 1 misdemeanor. Any loan made in violation of this section is void and uncollectible" (54-4-44). | South Dakota Legislature (South Dakota Codified Laws) as of 2026-09-16 |
What is available to Castlewood borrowers
Castlewood is a moderately settled community of about 706 people, with 16 larger places inside a 50-mile radius. Distance to a branch rarely matters for Castlewood's 706 residents: the application is online and the price follows your credit file. For a larger market, the closest option is Estelline, SD about 12 miles away.
Steps to take before a Castlewood loan
Before you apply in Castlewood, a community of about 706, work through these steps:
- Pull your credit reports first and correct any error before a lender sees the file.
- Model the payment on the calculator before a lender models it for you.
- Gather at least three pre-qualified offers and line up the APR, not the headline rate.
- Look the lender up in the South Dakota regulator's licence records before you sign.
- Be clear on what the loan is for and how it gets repaid.
- When debt already feels heavy, a nonprofit credit counsellor is worth a call first.
- Read the disclosure for an origination fee and any prepayment penalty before signing.
What differs between Castlewood and the rest of South Dakota is not the process but the borrower's own file, among the 706 people here.
Common questions
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Nearby places
- Hayti, SD — population 414
- Estelline, SD — population 768
- Kranzburg, SD — population 165
- Watertown, SD — population 23,230
- Lake Norden, SD — population 598
- Goodwin, SD — population 149
- Badger, SD — population 134
- Bruce, SD — population 215