Cost to Own
United StatesLouisianaSt. Mary ParishPatterson Population 5,801 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Patterson, Louisiana

A $137,000 home here costs

$1,168

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

A standard mortgage calculator would have told you $704. The real number is $464 higher every month — 66% more than the payment most buyers budget for.

Patterson median: $137,200
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, $109,600 borrowed $704
Property tax0.272% effective rate for Patterson itself $31
Homeowners insuranceLouisiana averages $2,259/yr (NAIC), or 1.083% of home value $124
Electricity14.15¢/kWh — Louisiana residential average, EIA $127
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $114
Total monthly $1,168

Patterson against St. Mary Parish and Louisiana

MeasurePattersonSt. Mary Parish
Median home value$137,200$128,000
Median property tax$373$515
Effective tax rate0.272%0.402%
Median gross rent$745$839
Population5,80148,455

The weather behind that power bill

Patterson sits in St. Mary Parish, which averages a high of 90.1°F in its hottest month and a low of 42.5°F in its coldest, with 66.79" of precipitation a year and 32% of it in a single three-month stretch. That climate drives 2,558 cooling and 1,509 heating degree days, which is what sets the $127 electricity line above.

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

Other cities in St. Mary Parish

Full St. Mary Parish cost breakdown · Every county in Louisiana

Common questions

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

A $137,000 home in Patterson, Louisiana costs approximately $1,168 per month with 20% down at 6.66%. That is $704 principal and interest, $31 property tax, $124 homeowners insurance, $195 utilities and $114 set aside for maintenance.

What is the property tax rate in Patterson?

Patterson has an effective property tax rate of 0.272%, based on a median home value of $137,200 and median real estate taxes of $373. That is lower than the St. Mary Parish average of 0.402%.

What is the average home price in Patterson?

The median owner-occupied home value in Patterson, Louisiana is $137,200, against $128,000 across St. Mary Parish.

Is it cheaper to rent or buy in Patterson?

Median gross rent in Patterson is $745 a month, against $1,168 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 Patterson — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for Louisiana.
  • 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