Zip Code 30066
Marietta, Georgia — Cobb County
📍 ZIP code 30066 is in Marietta, Cobb County, Georgia.
ZIP code 30066 is located in Marietta, Cobb County, Georgia. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 60,961. The area code for ZIP code 30066 is 404.
Quick Answer
Zip code 30066 is in Marietta, Georgia (Cobb County). It has a population of 60,961, median household income of $112,067, and median home value of $373,500.
Population
60,961
Income
$112,067
Home Value
$373,500
Climate
84°F / 32°F
About Zip Code 30066
Zip code 30066 is located in Marietta, Georgia, within Cobb County. Home to approximately 60,961 residents, this area sits at an elevation of 1067 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 404.
The median household income is $112,067 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $373,500, and the cost of living index is 133 (33% above the national average of 100).
Summers average a high of 84°F while winters drop to 32°F. The area receives about 56 in of rain and 1 in of snow annually. The zip code covers 27.3 square miles of land area and 0.3 square miles of water.
Key Statistics
60,961
$112,067
$373,500
Eastern (EST/EDT)
404
1067 ft
27.3 sq mi
38.5
23,632
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Compare With Nearby Zip Codes
| Metric | 30066 | 30062 | 30144 | 30068 | 30075 | 30188 |
|---|---|---|---|---|---|---|
| City | Marietta, GA | Marietta, GA | Kennesaw, GA | Marietta, GA | Roswell, GA | Woodstock, GA |
| Population | 60,961 | 63,105 | 58,389 | 33,040 | 55,274 | 65,980 |
| Median Income | $112,067 | $128,981 | $84,628 | $142,911 | $153,743 | $105,395 |
| Home Value | $373,500 | $456,500 | $310,400 | $564,400 | $575,200 | $389,100 |
| Cost of Living | 133 | 158 | 101 | 186 | 192 | 131 |
| Median Age | 38.5 | 41.1 | 33.1 | 44.7 | 43.2 | 39.7 |
Cost of Living
100 = National Average. Marietta's cost of living is 33% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.3x
Demographics
Zip code 30066 has a population of 60,961 people with a median age of 38.5. There are 23,632 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Marietta (30066) population trend from 2010 to 2024
↓ -30.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
32°F
56 in
1 in
Marietta experiences warm summers with average highs around 84°F. Winters are cool with lows averaging 32°F. The area receives about 1 in of snow per year.
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Housing & Economy
Median Home Value
$373,500
Median Household Income
$112,067
With 23,632 housing units across 27.3 square miles, 30066 has a housing density of 866 units per square mile. The home price-to-income ratio is 3.3x.
Location & Geography
Latitude
34.0324°
Longitude
-84.5052°
Land Area
27.3 sq mi
Water Area
0.3 sq mi
Nearby Zip Codes
Zip codes closest to 30066 (Marietta, GA) with distances:
All Zip Codes in Marietta, GA
Other zip codes serving Marietta:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 30066's $112,067. A way to compare Marietta to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 30066 (Marietta, GA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Marietta, Georgia?
Marietta, Georgia uses zip code 30066 along with 6 other zip codes.
What county is zip code 30066 in?
Zip code 30066 is located in Cobb County, Georgia.
What is the population of zip code 30066?
The population of zip code 30066 is 60,961 with a median age of 38.5.
Is 30066 in Marietta, Georgia?
Yes, zip code 30066 is in Marietta, Cobb County, Georgia. The area code is 404.
Frequently Asked Questions
What city is zip code 30066 in?
Zip code 30066 is in Marietta, Georgia. It is part of Cobb County and uses the Eastern (EST/EDT) timezone.
What is zip code 30066?
Zip code 30066 is a U.S. postal code in Marietta, Georgia (Cobb County). It has a population of 60,961 and covers 27.3 square miles.
What is the population of zip code 30066?
The population of zip code 30066 (Marietta, GA) is 60,961 with a median age of 38.5. There are approximately 23,632 housing units in this area.
What is the median income in zip code 30066?
The median household income in zip code 30066 (Marietta, GA) is $112,067 per year. The cost of living index is 133 (100 = national average).
What is the average home price in zip code 30066?
The median home value in zip code 30066 (Marietta, GA) is $373,500. The cost of living index is 133 compared to the national average of 100.
What county is zip code 30066 in?
Zip code 30066 is located in Cobb County, Georgia. The primary city is Marietta.
What is the area code for zip code 30066?
Zip code 30066 in Marietta, GA uses area code 404. It is located in the Eastern (EST/EDT) timezone.
Is zip code 30066 a good place to live?
Zip code 30066 (Marietta, GA) has a cost of living index of 133 (100 = national average), a median household income of $112,067, and median home values of $373,500. The median age is 38.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 30066?
The cost of living index for zip code 30066 (Marietta, GA) is 133, where 100 represents the national average. This area is above the national average. Median home value: $373,500.
What schools serve zip code 30066?
Zip code 30066 in Marietta, Georgia is served by the local school district of Cobb County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.