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Personal loans in Castle Rock, CO

By population, Castle Rock sits at 14th in Colorado, with an estimated 81,415 residents. A personal loan in Castle Rock is priced from your credit file and income, not from the fact that the city holds 81,415 people. The 2020 count to the 2023 estimate shows about 11.3% growth in Castle Rock. Use the calculator on this page to price an amount and term before you commit in Castle Rock. Every figure below is Colorado's own, applied to Castle Rock's 81,415 residents, with the publisher and retrieval date attached. The closest larger city is Centennial, CO about 15 miles away.

By the Personalloaner Editorial Team · Last updated 2026-09-16

Compare loan offers Run the numbers first

How we get paid: if you apply through the link above, a lending partner may send us a referral fee. It never changes the rate you are offered or what we publish. We are not a lender and we do not process applications. The lowest rates are only available to the most qualified applicants. Full disclosure.

The Castle Rock data picture

Read the local figures below as context; read the sourced Colorado table as the rulebook a lender here must follow.

The Colorado lending rules that reach Castle Rock

Colorado has no separate rate rule for Castle Rock; the sourced rows below are what reach every lender that serves its 81,415 people.

RuleDetailSource
State lending regulatorColorado Attorney General's Office — Consumer Credit Unit (Administrator of the Uniform Consumer Credit Code)
Source says: "The Consumer Credit Unit regulates (through licensure/registration programs) companies and individuals involved in consumer lending"; it "licenses non-bank lenders such as finance companies and payday lenders".		Colorado Attorney General — Consumer Protection Section
as of 2026-09-16
Small-loan / installment lender licensingSupervised lender license required from the UCCC Administrator (master license required for more than one place of business); deferred deposit lenders must hold a supervised lender's license
Source says: "if a supervised lender has more than one place of business, they must obtain a master license"; "no person shall engage in the business of deferred deposit loans without having first obtained a supervised lender's license" (C.R.S. § 5-3.1-116).		Colorado Attorney General — Uniform Consumer Credit Code licensing
as of 2026-09-16
Maximum legal interest rate (usury cap)UCCC finance-charge ceilings: 12% per year on non-supervised consumer loans; supervised loans 36% on the first $1,000, 21% on $1,000–$3,000, 15% above $3,000 (or 21% flat); 21% on revolving accounts
Source says: "not exceeding twelve percent per year on the unpaid balance of the amount financed"; "Thirty-six percent per year on that part of the unpaid balances of the amount financed that is one thousand dollars or less"; "Twenty-one percent per year on the unpaid balances of the amount financed".		Colorado General Assembly — C.R.S. § 5-2-201 (Colorado Revised Statutes 2024, Title 5)
as of 2026-09-16

Castle Rock: area, density and distance

Castle Rock covers about 34.7 square miles of land (Census Gazetteer); no significant water area is recorded inside its boundaries. Spread across it are roughly 2,343 residents per square mile. The state's population centre of gravity, Denver, is roughly 27 miles away. Counting outward 50 miles, 9 larger communities surround Castle Rock. The 100-mile radius contains 13 larger places.

How a Castle Rock personal loan is priced

Most loans made to Castle Rock's 81,415 residents are unsecured, so nothing is pledged and the lender relies on your credit history. A lender serving Castle Rock's 81,415 residents must disclose the APR and finance charge in writing before you sign. Shortening the term on a Castle Rock loan raises the monthly payment but cuts the interest; lengthening it does the reverse.

A practical checklist for Castle Rock borrowers

Before you hand your details to a lender in Castle Rock, where the population is near 81,415:

  1. Get your credit reports, dispute what is wrong, and only then start shopping.
  2. Run the numbers on the personal loan calculator so you know the payment before you apply.
  3. Get several pre-qualifications and compare APR side by side before choosing.
  4. Make sure the lender appears in the Colorado regulator's licence list.
  5. Decide the purpose and how you will repay it before approaching any lender.
  6. If debt is already a struggle, talk to a nonprofit credit counsellor before borrowing more.
  7. Check the disclosure for fees that raise the true cost above the quoted rate.

What differs between Castle Rock and the rest of Colorado is not the process but the borrower's own file, among the 81,415 people here.

Castle Rock against the rest of Colorado

Set beside Colorado's 270 places, Castle Rock ranks 14th by population and holds about 1.9% of the state total. On the 2020-to-2023 trend, Castle Rock stands 27th among Colorado's 270 places — roughly the 90th percentile. Its roughly 2,343 residents per square mile place it 28th among Colorado's places. Within 50 miles sit 49 smaller Census places, alongside the 9 that are larger.

Compare personal loan offers Run the numbers first

How we get paid: if you apply through the link above, a lending partner may send us a referral fee. It never changes the rate you are offered or what we publish. We are not a lender and we do not process applications. The lowest rates are only available to the most qualified applicants. Full disclosure.

Common questions

What are my options in Castle Rock if my credit is poor?
Borrowing is still possible, but expect a higher APR and a smaller approved amount. Lenders that accept lower scores hold statewide licences, so what is open to you in Castle Rock is the same as anywhere in Colorado.
What loan size can I expect in Castle Rock?
Most personal loans sit somewhere between $1,000 and $50,000, though the figure you are approved for turns on the lender, your income and your credit. Model the monthly payment first with our personal loan calculator.
Do I have to pledge anything to borrow in Castle Rock?
For an unsecured personal loan, no — there is nothing to pledge. A secured loan, such as home equity or one secured by a vehicle, does require collateral, and default puts that asset at risk.
Does comparing loans in Castle Rock cost me credit score points?
Not during pre-qualification, which normally uses a soft pull and leaves your score alone. Submitting a full application triggers a hard inquiry, which can trim a few points briefly.

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