Cost to Own
United StatesMarylandSt. Mary's CountyCallaway Population 1,087 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Callaway, Maryland

A $362,000 home here costs

$2,815

per month, all in — with 20% down at today's 6.66% 30-year fixed rate.

A standard mortgage calculator would have told you $1,861. The real number is $954 higher every month — 51% more than the payment most buyers budget for.

Callaway median: $361,500
Under 20% adds PMI
Freddie Mac PMMS
US 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, $289,600 borrowed $1,861
Property tax0.988% effective rate for Callaway itself $298
Homeowners insuranceMaryland averages $1,238/yr (NAIC), or 0.3% of home value $91
Electricity21.77¢/kWh — Maryland residential average, EIA $196
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $302
Total monthly $2,815

Callaway against St. Mary's County and Maryland

MeasureCallawaySt. Mary's County
Median home value$361,500$390,900
Median property tax$3,570$3,392
Effective tax rate0.988%0.868%
Median gross rent$1,360$1,692
Population1,087114,372

The weather behind that power bill

Callaway sits in St. Mary's County, which averages a high of 87.2°F in its hottest month and a low of 30.1°F in its coldest, with 46.32" of precipitation a year and 30% of it in a single three-month stretch. That climate drives 1,477 cooling and 3,867 heating degree days, which is what sets the $196 electricity line above.

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

Other cities in St. Mary's County

Full St. Mary's County cost breakdown · Every county in Maryland

Common questions

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

A $362,000 home in Callaway, Maryland costs approximately $2,815 per month with 20% down at 6.66%. That is $1,861 principal and interest, $298 property tax, $91 homeowners insurance, $264 utilities and $302 set aside for maintenance.

What is the property tax rate in Callaway?

Callaway has an effective property tax rate of 0.988%, based on a median home value of $361,500 and median real estate taxes of $3,570. That is higher than the St. Mary's County average of 0.868%.

What is the average home price in Callaway?

The median owner-occupied home value in Callaway, Maryland is $361,500, against $390,900 across St. Mary's County.

Is it cheaper to rent or buy in Callaway?

Median gross rent in Callaway is $1,360 a month, against $2,815 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 Callaway — 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.

Full methodology