Cost to Own
United States › Georgia › Chatham County › Wilmington Island Population 14,457 Data vintage ACS 2023 5-Year Rates updated 2026-10-22
Before you budget for Wilmington Island FEMA rates natural hazard risk in Chatham County Relatively High, with hurricane its highest-ranked hazard against other US counties. It shapes what insurers charge here. See what threatens homes in this county

Total monthly cost of ownership

Cost to Own a Home in Wilmington Island, Georgia

A $362,000 home here costs

$2,939

per month, all in, with 20% down at today's 7.32% 30-year fixed rate. By the 28% rule that takes a household income of about $126,000 a year.

P&I 68%Tax 9%Insurance 5%Utilities 8%Upkeep 10%

A standard mortgage calculator would have told you $1,989. The real number is $950 higher every month, 48% more than the payment most buyers budget for.

Compare Chatham County with anywhere in America · full county breakdown

Wilmington Island median: $361,600
Under 20% adds PMI
Freddie Mac PMMS
GA 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 $1,989
Property tax0.836% effective rate for Wilmington Island itself $252
Homeowners insuranceGeorgia averages $1,466/yr (NAIC), or 0.521% of home value $157
Electricity15.9ยข/kWh, Georgia residential average, EIA $171
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $302
Total monthly $2,939

Wilmington Island against Chatham County and Georgia

MeasureWilmington IslandChatham County
Median home value$361,600$273,300
Median property tax$3,023$2,463
Effective tax rate0.836%0.901%
Median gross rent$1,680$1,382
Population14,457298,143

The weather behind that power bill

Wilmington Island sits in Chatham County, which averages a high of 92.3°F in its hottest month and a low of 40.0°F in its coldest, with 48.12" of precipitation a year and 37% of it in a single three-month stretch. That climate drives 2,596 cooling and 1,675 heating degree days, which is what sets the $171 electricity line above.

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

Other cities in Chatham County

Full Chatham County cost breakdown · Every county in Georgia

Talk to someone who works this market

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

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

Common questions

How much does it cost to own a home in Wilmington Island?

A $362,000 home in Wilmington Island, Georgia costs approximately $2,939 per month with 20% down at 7.32%. That is $1,989 principal and interest, $252 property tax, $157 homeowners insurance, $239 utilities and $302 set aside for maintenance.

What is the property tax rate in Wilmington Island?

Wilmington Island has an effective property tax rate of 0.836%, based on a median home value of $361,600 and median real estate taxes of $3,023. That is lower than the Chatham County average of 0.901%.

What is the average home price in Wilmington Island?

The median owner-occupied home value in Wilmington Island, Georgia is $361,600, against $273,300 across Chatham County.

Is it cheaper to rent or buy in Wilmington Island?

Median gross rent in Wilmington Island is $1,680 a month, against $2,939 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 Wilmington Island?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Wilmington Island, Georgia at today's rate takes a household income of roughly $126,000 a year. That covers the full $2,939 monthly cost, not just the mortgage payment.

Sources & methodology

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