Cost of Living in Castle Rock
Castle Rock's cost of living sits in a real, disclosed middle position among the three Douglas County communities in this build -- more affordable than Highlands Ranch, pricier than Parker on housing, with a genuinely simpler sales-tax structure than either.
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Learn moreHousing shows a real, unreconciled internal discrepancy
Redfin itself shows two different readings: $636,000 median sale price for March 2026 (down 7.2% year-over-year), versus a separate, apparently more recent citation of $660,000 (up 3.3% year-over-year) -- both disclosed rather than reconciled into one figure. Either reading sits below Highlands Ranch's $678K-$714K range and roughly comparable to or below Parker's $658,000. See housing-market for the fuller picture.
Colorado's flat, TABOR-variable income tax is a real, current factor
Colorado taxes income at a flat 4.40% rate for 2026 -- not fully fixed, since a TABOR mechanism can temporarily lower it further in years the state certifies a qualifying revenue surplus. This is a meaningfully different structure than the no-income-tax states (TX, TN, FL) built earlier in this dataset.
A middle-tier household income, with a notably higher cited unemployment rate
Castle Rock's median household income ($145,197) sits between Parker's ($133,369) and Highlands Ranch's ($159,307-$163,597). Its cited unemployment rate (4.2%-4.48%) runs notably higher than both of its Douglas County neighbors, though still described as below the national rate by at least one source -- a real, disclosed gap worth understanding rather than assuming a uniform south-metro labor market.
A structurally simpler sales tax, thanks to the 2005 RTD opt-out
Castle Rock's combined 8.1% sales tax rate (2.90% state + 1.00% county + 4.20% town) carries no separate RTD/SCFD special-district layer, unlike both Highlands Ranch's and Parker's combined rates -- a direct, real consequence of the Town's 2005 decision to opt out of RTD. See taxes for the full breakdown.
Key takeaways
- Castle Rock's median home price reads as either $636,000 (down 7.2% YoY) or $660,000 (up 3.3% YoY) depending on which Redfin snapshot is used -- a real, disclosed internal discrepancy, not a single settled figure.
- Colorado's flat income tax is 4.40% for 2026 (TABOR-variable), a meaningfully different structure than the no-income-tax states covered earlier in this dataset.
- Castle Rock's median household income ($145,197) sits between Parker's and Highlands Ranch's, but its cited unemployment rate (4.2%-4.48%) runs notably higher than both Douglas County neighbors.
- Castle Rock's 2005 RTD opt-out means its 8.1% combined sales tax rate carries no separate RTD/SCFD layer, unlike Highlands Ranch's or Parker's combined rates.
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