Total monthly cost of ownership
Cost to Own a Home in Arnold, Missouri
A $210,000 home here costs
$1,696per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,080. The real number is $616 higher every month — 57% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Arnold against Jefferson County and Missouri
| Measure | Arnold | Jefferson County |
|---|---|---|
| Median home value | $209,700 | $218,800 |
| Median property tax | $1,687 | $1,835 |
| Effective tax rate | 0.804% | 0.839% |
| Median gross rent | $1,085 | $972 |
| Population | 20,884 | 228,227 |
The weather behind that power bill
Arnold sits in Jefferson County, which averages a high of 88.4°F in its hottest month and a low of 22.3°F in its coldest, with 43.57" of precipitation a year and 33% of it in a single three-month stretch. That climate drives 1,352 cooling and 4,700 heating degree days, which is what sets the $123 electricity line above.
See the full climate breakdown for Jefferson County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Jefferson County
Full Jefferson County cost breakdown · Every county in Missouri
Common questions
How much does it cost to own a home in Arnold?
A $210,000 home in Arnold, Missouri costs approximately $1,696 per month with 20% down at 6.66%. That is $1,080 principal and interest, $141 property tax, $109 homeowners insurance, $191 utilities and $175 set aside for maintenance.
What is the property tax rate in Arnold?
Arnold has an effective property tax rate of 0.804%, based on a median home value of $209,700 and median real estate taxes of $1,687. That is lower than the Jefferson County average of 0.839%.
What is the average home price in Arnold?
The median owner-occupied home value in Arnold, Missouri is $209,700, against $218,800 across Jefferson County.
Is it cheaper to rent or buy in Arnold?
Median gross rent in Arnold is $1,085 a month, against $1,696 to own the median home all in. Renting costs less month to month here, though renting builds no equity.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Arnold — 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.