Jefferson County

ColoradoPopulation: 580,519
35
/100
Avoid
#770 of 1,000 counties
#52 in Colorado (62 counties)
Analysis by RentalCalcs ResearchIndependent data + algorithm-driven scoring
Updated October 19, 2026Sources: Zillow ZHVI, Zillow ZORI, US Census ACS, Tax Foundation

Market Snapshot

$606,904
Median Home Price
165% above national median
$1,931/mo
Median Rent
33% above national median
3.82%
Rent-to-Price Ratio
Top 96% nationally
-$1,926
Est. Monthly Cash Flow
With 20% down at 6.9% rate

Jefferson market analysis

Jefferson County sits at a gross rent-to-price ratio of 3.82%, which translates directly into the 2.48% cap rate the numbers produce at current prices. At a $606,904 median purchase price and $1,931 median rent, the math is unambiguous: this is not a cash-flow market. Running a standard underwrite with 20% down at 6.85%, monthly mortgage comes to $3,181. Add $676 in estimated operating expenses and subtract the $1,931 rent, and you land at negative $1,926 per month in cash flow, a cash-on-cash return of negative 16.56%. Prices also slipped 1.61% year-over-year, so you are not even getting appreciation momentum to rationalize the carry. The affordability index sits at 17 out of 100, ranking Jefferson 52nd out of 62 Colorado counties and in the 2nd percentile nationally. Every number here points the same direction: this market prices like an appreciation story, but it is not currently delivering on that premise either.

The investor this market suits is a long-horizon appreciation buyer with deep reserves and a willingness to subsidize negative cash flow for years in exchange for exposure to Denver metro real estate. A value-add operator might find pockets of opportunity where forced appreciation through renovation can close some of the gap between a 2.48% cap rate and a level that pencils, but at a $607,000 median entry point, the margin for error is thin. A cash-flow buyer has no business here at current prices and rates. The stability score of 50 is the one relative bright spot, suggesting the market is not volatile, but stability without yield is a parking lot, not an investment thesis.

The $425 per month combined property tax and insurance figure is actually a tailwind worth noting. Colorado's state-average effective property tax rate of 0.51% is low, and even accounting for the honest caveat that county and township rates may differ from that state average, the annualized tax and insurance burden of roughly $5,098 is materially lower than what investors face in high-tax states. That figure is already embedded in the $676 monthly expense estimate, but it is worth isolating: if this were an Illinois or New Jersey property at similar price points, the carry would be worse still. The low tax flag does not make the deal work, but it is one of the few structural cost advantages the county offers.

The primary risk here is price-to-rent compression with no near-term catalyst for relief. With a negative 16.56% cash-on-cash return and a cap rate nearly 200 basis points below what most institutional buyers consider acceptable on stabilized assets, any investor entering this market is making a leveraged bet on future price appreciation in a county that just printed a negative 1.61% year-over-year price change. Concentration risk is geographic and economic: Jefferson County's fortunes are tightly linked to the broader Denver metro cycle, and at an affordability index of 17, any softening in employment or mortgage rates moving higher could pressure both prices and renter quality simultaneously.

Comparing Jefferson to its neighbors clarifies where it sits. Denver County offers a slightly lower median price at $532,579, a meaningfully better rent-to-price ratio of 4.19%, and a higher overall score of 37. Boulder County is more expensive at $702,437 but also produces a 4.21% rent-to-price ratio, the best of the group. Both Denver and Boulder are better cash-flow propositions relative to their entry prices than Jefferson, even if none of them qualify as true cash-flow markets. On the expensive end, Routt and Summit counties carry median prices of $1.09 million and $988,060 respectively with rent-to-price ratios near Jefferson's, making them even harder to underwrite. Grand County at $752,023 and a 3.73% ratio offers no improvement. Jefferson's overall score of 35 is near the bottom of this peer group, and the only argument for choosing it over Denver or Boulder is if a specific submarket or asset type within Jefferson offers a discount to the county median. At the county level, Denver's lower entry price and higher yield ratio make it the more defensible starting point for a serious underwrite in the Denver metro area.

Last analyzed October 19, 2026. Based on the latest available Zillow and Census data for Jefferson County.

Scenario comparison

Same $1,931/mo rent assumption, 20% down, 6.85% rate. What changes is the acquisition price.
ScenarioPurchase priceMonthly cash flowCap rateCash-on-cash
75% of median
value-add or distressed
$455,178-$1,131/mo3.3%-13.0%
Median
typical MLS deal
$606,904-$1,926/mo2.5%-16.6%
125% of median
newer / premium
$758,631-$2,722/mo2.0%-18.7%

Price History

Median Home Price

Median Rent

Historical data from Zillow ZHVI/ZORI

Quick Investment Calculator

20%
5%50%100%

Purchase

Purchase Price$606,904
Down Payment (20%)$121,381
Loan Amount$485,523
Interest Rate6.85%

Monthly Cash Flow

Gross Rent+$1,931
Monthly P&I-$3,181
Est. Expenses (35%)-$676
Net Cash Flow-$1,926/mo
2.5%
Cap Rate (all cash)
-16.6%
Cash-on-Cash Return
3.82%
Rent-to-Price Ratio
Negative leverage: At 6.85% rates, borrowing costs exceed the 2.5% cap rate. All-cash buyers may see better returns.

* Based on county median values. 35% expenses include taxes, insurance, maintenance, vacancy, and property management. Actual results vary by property.

Score Breakdown

Overall Investment Score
35/100
35
Cash Flow(30%)
27/100

Based on 3.82% rent-to-price ratio. Higher ratios indicate stronger cash flow potential.

Appreciation(25%)
42/100

Based on -1.6% YoY price growth. Moderate growth (3-8%) scores highest.

Stability(25%)
50/100

Population data not available.

Affordability(20%)
17/100

Based on price relative to estimated local incomes.

Scores are calculated using real Zillow home value and rent data, Census population data, and economic indicators. The weighted average produces the overall investment score. Markets with missing rent data use estimated values based on regional averages.

Investment Outlook

Strengths

  • +Complete rent data available

Challenges

  • -Below-average rent-to-price ratio (3.82%)
  • -Declining home values (-1.6% YoY)
  • -Negative cash flow at typical financing (-$1,926/mo)
  • -Negative leverage (cap rate 2.5% < mortgage rate 6.9%)

Economic Indicators

Population
580,519
Median Income
—
Data pending
Unemployment Rate
—
Data pending
Price-to-Income
—
Data pending

Who this market fits

Best for
  • +All-cash buyers: removing debt service flips the cap rate to actual yield
Skip if
  • −You need positive cash flow on day one at typical leverage
  • −You can't tolerate negative leverage (cap rate below mortgage rate today)
  • −You expect appreciation to carry the deal, but prices have declined year over year
  • −You rely on FHA-style financing: prices are stretched relative to local incomes

Compare to Nearby Counties

CountyVerdict
DenverCO
37$532,579$1,8594.19%AvoidView
BoulderCO
37$702,437$2,4654.21%AvoidView
RouttCO
36$1,086,367$3,4443.80%AvoidView
CurrentJeffersonCO
35$606,904$1,9313.82%Avoid
GrandCO
34$752,023$2,3353.73%AvoidView
SummitCO
33$988,060$3,1663.84%AvoidView

Section 8 in Jefferson County: payment standards by ZIP, PHA waitlist status, and voucher counts are on VoucherMatch, the same HUD dataset with the tenant demand side attached.

The Bottom Line

AvoidJefferson may be challenging for traditional rentals. High prices or low rents make cash flow difficult.

Jefferson County in Colorado scores 35/100, ranking #770 of 1,000 US counties (top 98%). At 20% down and current rates, a median-priced rental loses about $1926/month; the 3.82% gross rent-to-price ratio doesn't survive debt service. The thesis here is appreciation, value-add, house hacking, or all-cash.

Monthly Cash Flow
$-1,926/mo
Cap Rate
2.5%
Cash-on-Cash
-16.6%

Related markets

Average rent by city in Jefferson County

Typical asking rent across each city's ZIP codes (Zillow Observed Rent Index). Open a city for rent by ZIP and bedroom count.

Frequently asked questions

The cap rate in Jefferson County is 2.48%, which is quite low and indicates limited cash-flow potential for rental investors. This reflects the high median home price of $606,904 relative to the median rent of $1,931.29.

Ready to Analyze a Deal in Jefferson?

Use our investment calculators to run detailed numbers on specific properties.