Zip Code 30340
Atlanta, Georgia — Dekalb County
📍 ZIP code 30340 is in Atlanta, Dekalb County, Georgia.
ZIP code 30340 is located in Atlanta, Dekalb County, Georgia. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 30,646. The area code for ZIP code 30340 is 404.
Quick Answer
Zip code 30340 is in Atlanta, Georgia (Dekalb County). It has a population of 30,646, median household income of $57,216, and median home value of $312,600.
Population
30,646
Income
$57,216
Home Value
$312,600
Climate
89°F / 33°F
About Zip Code 30340
Zip code 30340 is located in Atlanta, Georgia, within Dekalb County. Home to approximately 30,646 residents, this area sits at an elevation of 927 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 404.
The median household income is $57,216 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $312,600, and the cost of living index is 92 (8% below the national average of 100).
Summers average a high of 89°F while winters drop to 33°F. The area receives about 51 in of rain annually. The zip code covers 8.5 square miles of land area.
Key Statistics
30,646
$57,216
$312,600
Eastern (EST/EDT)
404
927 ft
8.5 sq mi
32
11,829
Advertisement
Compare With Nearby Zip Codes
| Metric | 30340 | 30341 | 30360 | 30084 | 30345 | 30071 |
|---|---|---|---|---|---|---|
| City | Atlanta, GA | Atlanta, GA | Atlanta, GA | Tucker, GA | Brookhaven, GA | Norcross, GA |
| Population | 30,646 | 34,812 | 16,428 | 38,715 | 24,576 | 26,140 |
| Median Income | $57,216 | $81,774 | $83,239 | $82,747 | $107,151 | $61,351 |
| Home Value | $312,600 | $438,500 | $398,500 | $332,000 | $529,300 | $333,700 |
| Cost of Living | 92 | 130 | 128 | 109 | 158 | 95 |
| Median Age | 32 | 32.9 | 33.9 | 41.7 | 38.8 | 32.1 |
Cost of Living
100 = National Average. Atlanta's cost of living is 8% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
5.5x
Demographics
Zip code 30340 has a population of 30,646 people with a median age of 32. There are 11,829 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Atlanta (30340) population trend from 2010 to 2024
↑ 390.6%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
33°F
51 in
0 in
Atlanta experiences warm summers with average highs around 89°F. Winters are mild with lows averaging 33°F. The area receives virtually no snowfall.
Advertisement
Housing & Economy
Median Home Value
$312,600
Median Household Income
$57,216
With 11,829 housing units across 8.5 square miles, 30340 has a housing density of 1,392 units per square mile. The home price-to-income ratio is 5.5x.
Location & Geography
Latitude
33.8971°
Longitude
-84.2517°
Land Area
8.5 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 30340 (Atlanta, GA) with distances:
All Zip Codes in Atlanta, GA
Other zip codes serving Atlanta:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 30340's $57,216. A way to compare Atlanta 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 30340 (Atlanta, 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.
Explore Georgia
Popular "Near Me" Searches
Advertisement
People Also Ask
What zip code is Atlanta, Georgia?
Atlanta, Georgia uses zip code 30340 along with 11 other zip codes.
What county is zip code 30340 in?
Zip code 30340 is located in Dekalb County, Georgia.
What is the population of zip code 30340?
The population of zip code 30340 is 30,646 with a median age of 32.
Is 30340 in Atlanta, Georgia?
Yes, zip code 30340 is in Atlanta, Dekalb County, Georgia. The area code is 404.
Frequently Asked Questions
What city is zip code 30340 in?
Zip code 30340 is in Atlanta, Georgia. It is part of Dekalb County and uses the Eastern (EST/EDT) timezone.
What is zip code 30340?
Zip code 30340 is a U.S. postal code in Atlanta, Georgia (Dekalb County). It has a population of 30,646 and covers 8.5 square miles.
What is the population of zip code 30340?
The population of zip code 30340 (Atlanta, GA) is 30,646 with a median age of 32. There are approximately 11,829 housing units in this area.
What is the median income in zip code 30340?
The median household income in zip code 30340 (Atlanta, GA) is $57,216 per year. The cost of living index is 92 (100 = national average).
What is the average home price in zip code 30340?
The median home value in zip code 30340 (Atlanta, GA) is $312,600. The cost of living index is 92 compared to the national average of 100.
What county is zip code 30340 in?
Zip code 30340 is located in Dekalb County, Georgia. The primary city is Atlanta.
What is the area code for zip code 30340?
Zip code 30340 in Atlanta, GA uses area code 404. It is located in the Eastern (EST/EDT) timezone.
Is zip code 30340 a good place to live?
Zip code 30340 (Atlanta, GA) has a cost of living index of 92 (100 = national average), a median household income of $57,216, and median home values of $312,600. The median age is 32. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 30340?
The cost of living index for zip code 30340 (Atlanta, GA) is 92, where 100 represents the national average. This area is below the national average. Median home value: $312,600.
What schools serve zip code 30340?
Zip code 30340 in Atlanta, Georgia is served by the local school district of Dekalb 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.
People Also Searched For
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.