Cost to Own
United States › Missouri › St. Charles County › Wentzville Population 45,734 Data vintage ACS 2023 5-Year Rates updated 2026-10-15
The part nobody budgets Even with the mortgage fully paid off, the median home here still costs $938 a month in taxes, insurance, utilities and upkeep. See the full St. Charles County picture

Total monthly cost of ownership

Cost to Own a Home in Wentzville, Missouri

A $303,000 home here costs

$2,617

per month, all in, with 20% down at today's 7.40% 30-year fixed rate. By the 28% rule that takes a household income of about $112,000 a year.

P&I 64%Tax 11%Insurance 6%Utilities 9%Upkeep 10%

A standard mortgage calculator would have told you $1,678. The real number is $938 higher every month, 56% more than the payment most buyers budget for.

Compare St. Charles County with anywhere in America · full county breakdown

Wentzville median: $302,700
Under 20% adds PMI
Freddie Mac PMMS
MO 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, $242,400 borrowed $1,678
Property tax1.184% effective rate for Wentzville itself $299
Homeowners insuranceMissouri averages $1,340/yr (NAIC), or 0.625% of home value $158
Electricity16.09ยข/kWh, Missouri residential average, EIA $161
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $253
Total monthly $2,617

Wentzville against St. Charles County and Missouri

MeasureWentzvilleSt. Charles County
Median home value$302,700$296,800
Median property tax$3,585$3,340
Effective tax rate1.184%1.125%
Median gross rent$1,264$1,312
Population45,734409,830

The weather behind that power bill

Wentzville sits in St. Charles County, which averages a high of 89.5°F in its hottest month and a low of 22.0°F in its coldest, with 39.75" of precipitation a year and 34% of it in a single three-month stretch. That climate drives 1,448 cooling and 4,650 heating degree days, which is what sets the $161 electricity line above.

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

Other cities in St. Charles County

Full St. Charles County cost breakdown · Every county in Missouri

Talk to someone who works this market

These are Wentzville 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 Wentzville every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Wentzville I already own here and may sell

Common questions

How much does it cost to own a home in Wentzville?

A $303,000 home in Wentzville, Missouri costs approximately $2,617 per month with 20% down at 7.4%. That is $1,678 principal and interest, $299 property tax, $158 homeowners insurance, $229 utilities and $253 set aside for maintenance.

What is the property tax rate in Wentzville?

Wentzville has an effective property tax rate of 1.184%, based on a median home value of $302,700 and median real estate taxes of $3,585. That is higher than the St. Charles County average of 1.125%.

What is the average home price in Wentzville?

The median owner-occupied home value in Wentzville, Missouri is $302,700, against $296,800 across St. Charles County.

Is it cheaper to rent or buy in Wentzville?

Median gross rent in Wentzville is $1,264 a month, against $2,617 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 Wentzville?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Wentzville, Missouri at today's rate takes a household income of roughly $112,000 a year. That covers the full $2,617 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Wentzville, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for Missouri.
  • 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