The median Mountain Park homeowner pays $3,344/year in property taxes. That is 3.48% of median household income. See how Mountain Park compares and check your savings potential.
Mountain Park is easy to misplace, since Georgia also has a tiny incorporated city by that name in Fulton County. This Mountain Park is an unincorporated community of roughly 12,900 people in western Gwinnett County near Lilburn, an established suburban area where wooded lots and subdivisions built out over several decades sit within commuting reach of both Atlanta and Gwinnett's job corridors. The median home here is valued around $350,300, about 8% below the Gwinnett County median of $380,900, which makes it one of the more attainable pockets in a county where prices have climbed steadily for years. Attainable does not mean cheap to hold. With Gwinnett's effective property tax rate at roughly 1.4%, the typical Mountain Park homeowner directs about 3.5% of household income to property taxes even on a solid median income of $96,166, a share high enough that an assessment running ahead of your home's real market value costs you meaningfully every year it stands. The spread county assessors must model is wide: across Gwinnett County, home values range from roughly $289,831 at the 25th percentile to $487,646 at the 75th, and older unincorporated neighborhoods like this one, full of houses of similar vintage but very different conditions and renovation histories, are where model-driven values most often blur real differences between homes. Read your annual notice closely and test it against actual nearby sales rather than asking prices. If the county's number looks inflated, you can appeal. Georgia law sets the appeal deadline at 45 days from the date of your assessment notice. The date printed on your notice controls. Confirm with your county before you file.
Mountain Park Appeal Quick Facts
The median home in Mountain Park is valued at $350,300, and the typical homeowner pays about $3,344 per year in property tax (Census ACS 2024), based on Gwinnett County's 3.506% combined millage applied to 40% of fair market value after exemptions. That means the typical Mountain Park homeowner spends 3.48% of household income on property taxes alone. If Gwinnett County has overestimated your home's fair market value, you are paying more than you should. Filing is free, and the Board of Equalization can lower your value but cannot raise it above the county assessors' figure, except on a value already frozen by an earlier appeal. At $350,300, Mountain Park home values are 8% below the Gwinnett County median, 105% above Georgia's statewide median of $170,200, 10% above the national median of $318,000.
Check If Your Mountain Park Home Is Overassessed
Peachtree Corners leads Gwinnett County in home values, but your individual assessment could still be too high regardless of where Mountain Park falls in the county ranking.
In a mid-size city like Mountain Park, you should be able to find 3-5 comparable sales within Gwinnett County. Look for homes that sold in the last 12 months with similar square footage, age, and condition. If local sales are limited, expand your search to neighboring areas within the county. For the full evidence strategy, exemption details, and step-by-step filing instructions, see our Gwinnett County Property Tax Guide.
Based on a combined tax rate of 3.506%. Your actual rate may vary by tax district. Three-year figures are estimates and apply only if your value is reduced; you can then keep saving for up to three years, subject to the statutory exceptions.
A 10% reduction on the median Mountain Park home ($350,300 down by $35,030) would save approximately $491 per year, or $1,473 over three years (estimated, subject to the statutory exceptions) with the 299c value freeze.
At 3.48% of household income, even a modest reduction in your assessed value makes a real difference in your annual budget.
Property tax appeals in Mountain Park are filed with the Gwinnett County Board of Assessors. To appeal, submit a PT-311A form. Georgia law sets the appeal deadline at 45 days from the date of your assessment notice. The date printed on your notice controls. Confirm with your county before you file.
Gwinnett County Board of Assessors: 75 Langley Drive, Lawrenceville, GA 30045 | 770-822-7212 For the full appeal process and deadline details, see our Gwinnett County Property Tax Guide.
Based on 2024 American Community Survey estimates and Gwinnett County millage rates.