Lake County

MontanaPopulation: 31,509
40
/100
Avoid
#751 of 1,000 counties
#46 in Montana (56 counties)
Analysis by RentalCalcs ResearchIndependent data + algorithm-driven scoring
Updated October 19, 2026Sources: Zillow ZHVI, Zillow ZORI, US Census ACS, Tax Foundation

Market Snapshot

$602,510
Median Home Price
163% above national median
$1,660/mo
Median Rent
15% above national median
3.31%
Rent-to-Price Ratio
Top 99% nationally
-$2,080
Est. Monthly Cash Flow
With 20% down at 6.9% rate

Lake market analysis

Lake County, Montana sits at a 2.15% cap rate with a gross rent-to-price ratio of 0.033, which places it firmly in appreciation territory and well away from anything resembling cash flow. At a $602,510 median price against $1,659 monthly rent, the math is unforgiving: a leveraged investor putting 20% down at 6.85% faces a $3,158 monthly mortgage, and after estimated expenses the model spits out negative $2,080 per month in cash flow and a cash-on-cash return of -18.01%. That is not a rounding error or a deal-specific fluke; it is the market's price signal. The appreciation score of 71 out of 100 reflects that prices have moved 2.14% year-over-year and that the market's value proposition is entirely on the equity side, not the income side. The overall score of 40 and a national percentile ranking of 4 out of 1,000 counties confirm this is a niche market, not a broad opportunity.

The investor this market suits is a high-net-worth buyer who can deploy significant equity, tolerate a negative carry, and underwrite primarily to long-run price appreciation and personal utility, such as a vacation rental operator who will occupy the property part of the year or a 1031 exchange buyer looking to park capital in a scenic, low-supply market near Flathead Lake. A cash-flow buyer should stop reading here: there is no combination of value-add improvements or rent growth assumptions that closes a $2,080 monthly gap without fundamentally changing the purchase price or financing structure. A value-add operator faces the same structural ceiling, because the problem is not the asset's condition but the rent-to-price ratio itself. The affordability index of 17 out of 100 signals that rents are already stretched relative to local incomes, limiting how much organic rent growth a landlord can realistically extract.

The taxInsurance data does not create a separate crisis here but it does add up. At a combined monthly tax and insurance cost of $608, that figure is already baked into the estimated expenses and contributes meaningfully to the negative carry. Montana's state-average effective property tax rate is 0.83%, which the property tax flag classifies as normal, and that is roughly accurate on a national comparison basis. However, the modeling note is worth keeping: this is a state-average estimate from Tax Foundation 2024 data, and actual county or township rates in Lake County may differ, so verify the specific assessor's figures before finalizing any underwrite. The insurance component at 0.38% annually ($2,290) is relatively modest, which is one minor tailwind in an otherwise difficult cost structure.

The primary risk in Lake County is concentration. With a population of 31,509, this is a small, geographically isolated market. Rental demand is necessarily thin, and any softening in the tourism or second-home segments, which likely drive a meaningful share of pricing at the $602,510 median level, could affect both values and achievable rents faster than in a diversified metro. There is no employer or economic anchor data provided for this county, so no specific demand driver can be named here. What the affordability score of 17 does suggest is that local workforce renters are already at or near their capacity, meaning rental demand above current rent levels is likely dependent on outside capital or seasonal income rather than organic local wage growth.

Comparing Lake County to its neighbors clarifies the trade-offs without resolving them. Park County offers a similar median at $566,419 but a meaningfully better rent-to-price ratio of 0.038 versus Lake's 0.033, along with a higher median rent of $1,783. That spread is material at scale and makes Park at least marginally more viable for a buyer trying to minimize negative carry. Missoula County, at $558,040 median and a 0.032 rent-to-price ratio, is actually slightly worse on yield despite being Montana's largest city, though it may offer more tenant depth and diversification. Mineral County, at $377,741 median, is the outlier on price but carries an overall score of 39 and presumably a much thinner rental market given its geography. Broadwater and Madison counties lack rent data in the model, limiting direct comparison. An investor should choose Lake over its neighbors specifically when the asset being underwritten is a short-term or vacation rental on Flathead Lake's shoreline, where nightly rates can materially reframe the economics, or when the buyer's primary objective is appreciation capture in a scenic, supply-constrained Western market and cash flow is a secondary consideration. For a conventional long-term rental at these price points, Park County's higher rent-to-price ratio makes it the better starting point.

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

Scenario comparison

Same $1,660/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
$451,882-$1,290/mo2.9%-14.9%
Median
typical MLS deal
$602,510-$2,080/mo2.1%-18.0%
125% of median
newer / premium
$753,137-$2,869/mo1.7%-19.9%

Price History

Median Home Price

Median Rent

Historical data from Zillow ZHVI/ZORI

Quick Investment Calculator

20%
5%50%100%

Purchase

Purchase Price$602,510
Down Payment (20%)$120,502
Loan Amount$482,008
Interest Rate6.85%

Monthly Cash Flow

Gross Rent+$1,660
Monthly P&I-$3,158
Est. Expenses (35%)-$581
Net Cash Flow-$2,080/mo
2.1%
Cap Rate (all cash)
-18.0%
Cash-on-Cash Return
3.31%
Rent-to-Price Ratio
Negative leverage: At 6.85% rates, borrowing costs exceed the 2.1% 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
40/100
40
Cash Flow(30%)
20/100

Based on 3.31% rent-to-price ratio. Higher ratios indicate stronger cash flow potential.

Appreciation(25%)
71/100

Based on 2.1% 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 (3.31%)
  • -Negative cash flow at typical financing (-$2,080/mo)
  • -Negative leverage (cap rate 2.1% < mortgage rate 6.9%)
  • -High price-to-income ratio makes financing challenging

Economic Indicators

Population
31,509
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 rely on FHA-style financing: prices are stretched relative to local incomes
  • −You want a market with broad institutional consensus on fundamentals

Compare to Nearby Counties

CountyVerdict
CurrentLakeMT
40$602,510$1,6603.31%Avoid
ParkMT
40$566,419$1,7833.78%AvoidView
BroadwaterMT
40$510,465Est. pending—AvoidView
MineralMT
39$377,741Est. pending—AvoidView
MadisonMT
37$721,950Est. pending—AvoidView
MissoulaMT
36$558,040$1,4753.17%AvoidView

Section 8 in Lake 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

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

Lake County in Montana scores 40/100, ranking #751 of 1,000 US counties (top 96%). At 20% down and current rates, a median-priced rental loses about $2080/month; the 3.31% 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
$-2,080/mo
Cap Rate
2.1%
Cash-on-Cash
-18.0%

Related markets

Frequently asked questions

Lake County has an average cap rate of 2.15%, which is quite low and indicates this is primarily an appreciation market rather than a cash-flow market.

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