Cost to Own
United States › Montana › Lewis and Clark County › Helena West Side Population 1,584 Data vintage ACS 2023 5-Year Rates updated 2026-10-29
The part nobody budgets Even with the mortgage fully paid off, the median home here still costs $937 a month in taxes, insurance, utilities and upkeep. See the full Lewis and Clark County picture

Total monthly cost of ownership

Cost to Own a Home in Helena West Side, Montana

A $412,000 home here costs

$3,183

per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $136,500 a year.

P&I 71%Tax 8%Insurance 4%Utilities 6%Upkeep 11%

A standard mortgage calculator would have told you $2,246. The real number is $937 higher every month, 42% more than the payment most buyers budget for.

Compare Lewis and Clark County with anywhere in America · full county breakdown

Small-place caveat: the Census publishes these figures for Helena West Side from a five-year rolling sample, and with about 1,584 residents that sample is small. The median home value here carries a much wider margin of error than a big-city figure does, so treat it as indicative rather than exact. The Lewis and Clark County figures are drawn from a far larger sample if you want a steadier number.

Helena West Side median: $411,800
Under 20% adds PMI
Freddie Mac PMMS
MT average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $329,600 borrowed $2,246
Property tax0.731% effective rate for Helena West Side itself $251
Homeowners insuranceMontana averages $1,471/yr (NAIC), or 0.413% of home value $142
Electricity15.57ยข/kWh, Montana residential average, EIA $133
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $343
Total monthly $3,183

Helena West Side against Lewis and Clark County and Montana

MeasureHelena West SideLewis and Clark County
Median home value$411,800$358,200
Median property tax$3,009$2,886
Effective tax rate0.731%0.806%
Median gross rent$781$1,062
Population1,58472,580

The weather behind that power bill

Helena West Side sits in Lewis and Clark County, which averages a high of 81.5°F in its hottest month and a low of 16.2°F in its coldest, with 17.09" of precipitation a year and 46% of it in a single three-month stretch. That climate drives 218 cooling and 7,893 heating degree days, which is what sets the $133 electricity line above.

See the full climate breakdown for Lewis and Clark County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Lewis and Clark County

Full Lewis and Clark County cost breakdown · Every county in Montana

Talk to someone who works this market

These are Helena West Side averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Helena West Side every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Helena West Side I already own here and may sell

Common questions

How much does it cost to own a home in Helena West Side?

A $412,000 home in Helena West Side, Montana costs approximately $3,183 per month with 20% down at 7.24%. That is $2,246 principal and interest, $251 property tax, $142 homeowners insurance, $201 utilities and $343 set aside for maintenance.

What is the property tax rate in Helena West Side?

Helena West Side has an effective property tax rate of 0.731%, based on a median home value of $411,800 and median real estate taxes of $3,009. That is lower than the Lewis and Clark County average of 0.806%.

What is the average home price in Helena West Side?

The median owner-occupied home value in Helena West Side, Montana is $411,800, against $358,200 across Lewis and Clark County.

Is it cheaper to rent or buy in Helena West Side?

Median gross rent in Helena West Side is $781 a month, against $3,183 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

What salary do you need to buy a home in Helena West Side?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Helena West Side, Montana at today's rate takes a household income of roughly $136,500 a year. That covers the full $3,183 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Helena West Side, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for Montana.
  • Electricity price, EIA Electric Power Monthly Table 5.6.A.
  • Mortgage rate, Freddie Mac PMMS, refreshed weekly.
  • Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.

Full methodology