Spearfish at a glance
- Population: a Census-estimated 13,282, placing it 11th among South Dakota's 309 places (Vintage 2023 subcounty estimate).
- 2020 Census base: 12,197 residents in the 2020 Census, per the US Census Bureau.
- 2020 to 2023 change: up about 8.9% from the 2020 Census base to the 2023 estimate (US Census Bureau).
- Rank among South Dakota places: 11th largest of 309 (US Census Bureau).
- Size percentile: roughly 96% of places in South Dakota rank below it by population (US Census Bureau).
- Coordinates: the Census Gazetteer places it at 44.4914, -103.8163.
- Nearest larger cities (120-mile radius): Rapid City, SD (41 mi); Box Elder, SD (45 mi); Gillette, WY (84 mi) (US Census Bureau).
- Nearest smaller places: Deadwood, SD (9 mi); Central City, SD (9 mi); Whitewood, SD (9 mi) (US Census Bureau estimates).
What a personal loan costs in Spearfish
Personal loans are installment credit — one lump sum, repaid in equal monthly installments across a fixed term you agree to up front.
Because the APR includes origination and finance charges, it is the honest comparison number; the personal loan calculator turns an APR and term into a monthly payment.
The offer you receive reflects the lender's read of your credit, income and debts, and the term controls the balance between payment size and total interest.
Work out the payment you can comfortably carry each month first, then borrow no more than that figure supports.
South Dakota lending rules that apply in Spearfish
Each row below is a South Dakota rule with its publisher and the date it was retrieved.
| Rule | Detail | Source |
|---|---|---|
| Small-loan / installment lender licensing | Money Lender license (SDCL ch. 54-4) required for anyone lending money or creating/holding/purchasing retail installment contracts; payday and title lenders are licensed as money lenders. Source says: "to be a Money Lender and subject to the licensing requirements of South Dakota Codified Laws (SDCL) Chapter 54-4"; "Payday and title lenders are also licensed as Money Lenders under SDCL Chapter 54-4." | South Dakota Division of Banking (Department of Labor and Regulation) as of 2026-09-16 |
| 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 |
| Initiated Measure 21 anti-evasion rule (state-specific rule) | Initiated Measure 21 (2016) also bars evasion by indirect means; applies to loans originated, refinanced, rolled over, renewed or flipped after November 15, 2016. Source says: "prohibits these money lenders from evading this rate limitation by indirect means... a loan made in violation of this measure is void" (Division of Banking guidance on Initiated Measure 21). | 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 |
How to compare offers in Spearfish
The order below is a sensible way to approach a loan in Spearfish:
- Pull your free credit reports and dispute any error — it is the cheapest way to improve the rate you are offered.
- Run your figures through the personal loan calculator on this site so you know the payment before a lender quotes one.
- Pre-qualify with at least three lenders and compare the APR, not the interest rate.
- Check that the lender is licensed in South Dakota using the regulator named above.
- Read the disclosure for origination fees and any prepayment penalty before you sign.