Total monthly cost of ownership
Cost to Own a Home in Arnold, Maryland
A $548,000 home here costs
$4,027per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $2,817. The real number is $1,209 higher every month — 43% 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 Anne Arundel County and Maryland
| Measure | Arnold | Anne Arundel County |
|---|---|---|
| Median home value | $547,800 | $450,300 |
| Median property tax | $4,221 | $3,836 |
| Effective tax rate | 0.771% | 0.852% |
| Median gross rent | $2,177 | $1,990 |
| Population | 23,866 | 590,936 |
The weather behind that power bill
Arnold sits in Anne Arundel County, which averages a high of 86.0°F in its hottest month and a low of 29.8°F in its coldest, with 43.99" of precipitation a year and 33% of it in a single three-month stretch. That climate drives 1,436 cooling and 4,062 heating degree days, which is what sets the $196 electricity line above.
See the full climate breakdown for Anne Arundel County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Anne Arundel County
Full Anne Arundel County cost breakdown · Every county in Maryland
Common questions
How much does it cost to own a home in Arnold?
A $548,000 home in Arnold, Maryland costs approximately $4,027 per month with 20% down at 6.66%. That is $2,817 principal and interest, $352 property tax, $137 homeowners insurance, $264 utilities and $457 set aside for maintenance.
What is the property tax rate in Arnold?
Arnold has an effective property tax rate of 0.771%, based on a median home value of $547,800 and median real estate taxes of $4,221. That is lower than the Anne Arundel County average of 0.852%.
What is the average home price in Arnold?
The median owner-occupied home value in Arnold, Maryland is $547,800, against $450,300 across Anne Arundel County.
Is it cheaper to rent or buy in Arnold?
Median gross rent in Arnold is $2,177 a month, against $4,027 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 Maryland.
- 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.