Zip Code 30078
Snellville, Georgia — Gwinnett County
📍 ZIP code 30078 is in Snellville, Gwinnett County, Georgia.
ZIP code 30078 is located in Snellville, Gwinnett County, Georgia. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 41,041. The area code for ZIP code 30078 is 404.
Quick Answer
Zip code 30078 is in Snellville, Georgia (Gwinnett County). It has a population of 41,041, median household income of $90,054, and median home value of $316,600.
Population
41,041
Income
$90,054
Home Value
$316,600
Climate
89°F / 33°F
About Zip Code 30078
Zip code 30078 is located in Snellville, Georgia, within Gwinnett County. Home to approximately 41,041 residents, this area sits at an elevation of 1056 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 404.
The median household income is $90,054 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $316,600, and the cost of living index is 107 (7% above 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 17 square miles of land area and 0.3 square miles of water.
Key Statistics
41,041
$90,054
$316,600
Eastern (EST/EDT)
404
1056 ft
17 sq mi
38.3
13,784
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Compare With Nearby Zip Codes
| Metric | 30078 | 30017 | 30039 | 30044 | 30047 | 30087 |
|---|---|---|---|---|---|---|
| City | Snellville, GA | Grayson, GA | Snellville, GA | Lawrenceville, GA | Lilburn, GA | Stone Mountain, GA |
| Population | 41,041 | 24,213 | 51,742 | 100,471 | 70,592 | 37,570 |
| Median Income | $90,054 | $95,654 | $90,500 | $76,133 | $85,909 | $89,484 |
| Home Value | $316,600 | $392,200 | $274,900 | $295,300 | $325,600 | $312,200 |
| Cost of Living | 107 | 136 | 99 | 97 | 108 | 108 |
| Median Age | 38.3 | 40.7 | 38.2 | 33 | 37.2 | 44.9 |
Cost of Living
100 = National Average. Snellville's cost of living is 7% above the national average.
vs. State Avg
Above
Affordability
Moderate
Income-to-Home
3.5x
Demographics
Zip code 30078 has a population of 41,041 people with a median age of 38.3. There are 13,784 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Snellville (30078) population trend from 2010 to 2024
↑ 7.2%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
33°F
51 in
0 in
Snellville experiences warm summers with average highs around 89°F. Winters are mild with lows averaging 33°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$316,600
Median Household Income
$90,054
With 13,784 housing units across 17 square miles, 30078 has a housing density of 811 units per square mile. The home price-to-income ratio is 3.5x.
Location & Geography
Latitude
33.8610°
Longitude
-84.0180°
Land Area
17 sq mi
Water Area
0.3 sq mi
Nearby Zip Codes
Zip codes closest to 30078 (Snellville, GA) with distances:
All Zip Codes in Snellville, GA
Other zip codes serving Snellville:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 30078's $90,054. A way to compare Snellville 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 30078 (Snellville, 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 Snellville, Georgia?
Snellville, Georgia uses zip code 30078 along with 1 other zip codes.
What county is zip code 30078 in?
Zip code 30078 is located in Gwinnett County, Georgia.
What is the population of zip code 30078?
The population of zip code 30078 is 41,041 with a median age of 38.3.
Is 30078 in Snellville, Georgia?
Yes, zip code 30078 is in Snellville, Gwinnett County, Georgia. The area code is 404.
Frequently Asked Questions
What city is zip code 30078 in?
Zip code 30078 is in Snellville, Georgia. It is part of Gwinnett County and uses the Eastern (EST/EDT) timezone.
What is zip code 30078?
Zip code 30078 is a U.S. postal code in Snellville, Georgia (Gwinnett County). It has a population of 41,041 and covers 17 square miles.
What is the population of zip code 30078?
The population of zip code 30078 (Snellville, GA) is 41,041 with a median age of 38.3. There are approximately 13,784 housing units in this area.
What is the median income in zip code 30078?
The median household income in zip code 30078 (Snellville, GA) is $90,054 per year. The cost of living index is 107 (100 = national average).
What is the average home price in zip code 30078?
The median home value in zip code 30078 (Snellville, GA) is $316,600. The cost of living index is 107 compared to the national average of 100.
What county is zip code 30078 in?
Zip code 30078 is located in Gwinnett County, Georgia. The primary city is Snellville.
What is the area code for zip code 30078?
Zip code 30078 in Snellville, GA uses area code 404. It is located in the Eastern (EST/EDT) timezone.
Is zip code 30078 a good place to live?
Zip code 30078 (Snellville, GA) has a cost of living index of 107 (100 = national average), a median household income of $90,054, and median home values of $316,600. The median age is 38.3. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 30078?
The cost of living index for zip code 30078 (Snellville, GA) is 107, where 100 represents the national average. This area is above the national average. Median home value: $316,600.
What schools serve zip code 30078?
Zip code 30078 in Snellville, Georgia is served by the local school district of Gwinnett 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.